PACKETEER INC
10-K, 2000-03-23
COMPUTER INTEGRATED SYSTEMS DESIGN
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 10-K

(Mark One)
[X]   ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
      ACT OF 1934 for the fiscal year ended December 31, 1999 or

[ ]   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
      EXCHANGE ACT OF 1934 for the transition period from ____________________
      to ________________.

  Commission File Number  _-_____

                                 PACKETEER, INC.
             (Exact name of Registrant as specified in its charter)

        DELAWARE                                        77-0420107
(State of incorporation)                   (I.R.S. Employer Identification No.)

                               10495 NORTH DE ANZA
                           CUPERTINO, CALIFORNIA 95014
                    (Address of principal executive offices)

       Registrant's telephone number, including area code: (408) 873-4400

        Securities registered pursuant to Section 12(b) of the Act: None

           Securities registered pursuant to Section 12(g) of the Act:

                         Common Stock, $0.001 Par Value
                                (Title of Class)

     Indicate by check mark whether the Registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
Registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days. Yes [X]  No ____

     Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of the Registrant's knowledge, in definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any
amendment to this Form 10-K. [ ]

     Based on the closing sale price of the common stock on the Nasdaq National
Market System on February 29, 2000, the aggregate market value of the voting
stock held by non-affiliates of the Registrant was $1,401,253,452. Shares of
common stock held by each officer and director and by each person known by the
Company to own 10% or more of the outstanding common stock have been excluded in
that such persons may be deemed to be affiliates. This determination of
affiliate status is not necessarily a conclusive determination for other
purposes.

     The number of shares outstanding of Registrant's common stock, $0.001 par
value, was 27,142,924 at February 29, 2000.

                       DOCUMENTS INCORPORATED BY REFERENCE

     Information required by Part III of this form 10K is incorporated by
reference from the Company's definitive Proxy Statement for the Registrant's
2000 Annual


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Meeting of Stockholders to be filed with the Securities and Exchange Commission
pursuant to Regulation 14A not later than 120 days after December 31, 1999.


                         ------------------------------

                                TABLE OF CONTENTS
<TABLE>
<CAPTION>

Part I

<S>            <C>         <C>                                                                   <C>
               Item 1.     Business  ........................................................     3
               Item 2.     Properties........................................................    18
               Item 3.     Legal Proceedings  ...............................................    18
               Item 4.     Submission of Matters to a Vote of Security Holders  .............    18

Part II
               Item 5.     Market Registrant's Common Stock and Related Stockholder Matters..    18
               Item 6.     Selected Financial Data  .........................................    18
               Item 7.     Management's Discussion and Analysis of Financial Condition
                           and Results of Operation  ........................................    19
               Item 7a     Quantitative and Qualitative Disclosures about Market Risk  ......    33
               Item 8.     Financial Statements and Supplementary Data  .....................    35
               Item 9.     Changes and Disagreements with Accountants on Accounting and
                           Financial Disclosure  ............................................    51

Part III
               Item 10.    Directors and Executive Officers of the Registrant  ..............    51
               Item 11.    Executive Compensation  ..........................................    51
               Item 12.    Security Ownership of Certain Beneficial Owners and Management....    51
               Item 13.    Certain Relationships and Related Transactions  ..................    51

Part IV
               Item 14.    Exhibits, Financial Statement Schedules and Reports on Form 8-K...    51

Signatures  .................................................................................    52
</TABLE>



      In addition to historical information, this Annual Report on Form 10-K
contains forward-looking statements regarding our strategy, financial
performance and revenue sources that involve a number of risks and
uncertainties, including those discussed below in "Risk Factors."
Forward-looking statements in this report include, but are not limited to, those
relating to the general rapid expansion of our business, including the expansion
of our network products, our ability to develop multiple applications, our
planned introduction of new products and services, the possibility of acquiring
complementary businesses, products, services and technologies and our
development of relationships with providers of leading Internet technologies.
While this outlook represents our current judgment on the future direction of
the business, such risks and uncertainties could cause actual results to differ
materially from any future performance suggested below. Readers are cautioned
not to place undue reliance on the forward-looking statements, which speak only
as of the date of this Annual Report. Packeteer undertakes no obligation to
publicly release any revision's to forward-looking statements to reflect events
or circumstances arising after the date of this document. See "Risk Factors."




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      We were incorporated in Delaware in January 1996. In this report,
"Packeteer," "we," "us," and "our" refer to Packeteer, Inc. and its
subsidiaries.


                                     PART I

ITEM 1.    BUSINESS

OVERVIEW

     Packeteer is a leading provider of Internet application infrastructure
systems designed to enable businesses and service providers to ensure the
quality of experience for networked applications and application services.
Packeteer's PacketWise software, the foundation of the Company's innovative
PacketShaper and AppVantage systems, integrates application discovery, analysis,
control and reporting technologies that are required for proactive application
performance and bandwidth management.

      We deliver comprehensive application-adaptive bandwidth management by
discovering and classifying network traffic, analyzing application and network
performance, controlling traffic flow and then reporting on performance. These
four steps are accomplished through our PacketWise software which is embedded in
our PacketShaper family of products and in the networking products of our
technology partners. Our PacketShaper product family consists of hardware
platforms based on Intel compatible microprocessor technologies. Installing
PacketShaper imposes no changes to the existing network's equipment,
configuration or software.

     Packeteer's products are deployed today by companies and service providers
through an established network of more than 100 VARs, distributors and system
integrators in more than 50 countries. To date we have shipped over 5,000
PacketShapers. In addition, PacketWise software is licensed by communications
industry partners who integrate the software into specific strategic networking
solutions.


INDUSTRY BACKGROUND

The Emergence of Internet Computing

      Today, both the Internet and its underlying protocol TCP/IP, have grown to
positions of prominence in enterprise networking. Protocols are predefined
mechanisms for computers to communicate over networks. From its origins as a
network connecting academic and government institutions, the Internet has
evolved into an interactive communications and commerce platform supporting
businesses' daily operations. Originally intended to accommodate non-interactive
traffic such as file transfers and e-mail, the Internet and TCP/IP were designed
with the basic goals of connectivity, versatility and bandwidth exploitation.
With the evolution towards Internet computing, TCP/IP has become the
communications fabric, or as is commonly referred to in the technology industry,
the underlying protocol, of mission-critical enterprise networks. The Internet
has enabled a new generation of interactive applications to deliver core
business functions, including e-commerce, data access and information exchange,
to a broad range of users. Leveraging the fundamental attributes of the Internet
and TCP/IP, businesses, consumers and suppliers have become better connected.
This rapid development of a vast connected economy has given rise to a new
innovative business model, the Internet computing model.

      The rapid emergence of Internet computing has had a significant effect on
today's enterprise networks and has created new challenges for information
technology managers. As more interactive business applications are developed
using web-enabled versions of enterprise software platforms, such as SAP R/3,
Oracle, PeopleSoft and Baan, the amount of network data is increasing
dramatically. E-commerce extends the confines of the enterprise network across
the Internet, making application performance difficult to ensure. Enterprise
users access graphics-intensive web sites, download large files, view streaming



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media presentations, monitor news and stock quotes and access other non-critical
information over the Internet. The resulting traffic deluge impacts network
resources that serve point-of-sale, order processing, enterprise resource
planning, supply-chain management and other vital business functions.

      Internet computing relies on TCP/IP as the underlying protocol to support
distributed enterprise applications and the delivery of electronic services. The
Internet Protocol, or IP, provides for routing of packets across networks that
utilize TCP/IP as their underlying protocol. The Transmission Control Protocol,
or TCP, provides flow control for, and reliable ordered delivery of, Internet
Protocol packets. Unlike early non-interactive applications that did not require
real-time responsiveness, today's enterprise and e-commerce applications depend
on timely access to data and real-time transaction responses to ensure
productivity and a high quality of experience for end users. The shift toward
real-time, delay-sensitive data is accelerating as corporations begin to
converge database transactions and multimedia traffic onto their enterprise
networks. TCP/IP is unable to differentiate between traffic types and is
designed so that each transmission attempts to consume all available bandwidth.
These characteristics, which make TCP/IP suitable for non-interactive traffic,
threaten the performance of today's mission-critical applications.

The Traffic Bottleneck at the WAN Access Link

      In recent years, the adoption of Fast Ethernet and Gigabit Ethernet
technologies has reduced network congestion on the LAN. Simultaneously, the
deployment of fiber infrastructure in the service provider backbone has also
reduced bandwidth contention in that portion of the network. However, the bridge
between the two, the WAN access link, has remained the slow, weak link in the
chain, forming a bandwidth bottleneck. WAN access link capacity is often
constrained, expensive and difficult to upgrade. When faced with bandwidth
contention at the bottleneck, TCP/IP provides neither a means to give
preferential treatment to select applications nor a good mechanism to
effectively control data flows because TCP flow control is handled only by end
systems. TCP/IP reacts to network congestion by discarding data packets and
sporadically reducing packet transmissions from the host computer. In enterprise
networks that are overwhelmed by increasing amounts of both non-critical and
mission-critical traffic, unmanaged congestion at the WAN access link undermines
application performance and can result in impaired productivity and lost
revenues.

      Today's enterprise networks require solutions that ensure mission-critical
application performance, increase network efficiency, and enable the convergence
of data, voice and video traffic. Enterprises are seeking to align their
networks with their business priorities by making them adaptive to the unique
requirements of the growing mix of mission-critical applications. At the same
time, they seek to leverage investments in application software and proactively
control recurring network costs by optimizing bandwidth utilization.

      Many existing and newly emerging telecommunications service providers are
also seeking to address the needs of enterprises that are adopting Internet
computing. Service providers have traditionally functioned as WAN bandwidth
suppliers, leasing data lines and selling Internet access to businesses and
consumers. In the face of heightened competition, service providers are seeking
to differentiate themselves by offering tiered services in order to attract and
retain customers and increase profitability. These offerings include web
hosting, application outsourcing and managed network services. To deliver these
services, service providers must be able to ensure network and application
performance and better manage and allocate network resources.

Limitations of Existing Approaches

      Businesses and service providers currently employ several approaches in an
attempt to alleviate network congestion at the WAN access link. These approaches
include the following:

      Adding bandwidth and infrastructure to over-provision the network. This
approach requires expensive upgrades to WAN access links and associated network



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equipment. Moreover, incremental increases in bandwidth only temporarily
alleviate network congestion, leaving the following problems unresolved:

      -     Over-provisioning results in under-utilization of the network during
            non-peak periods;

      -     Increases in bandwidth tend to be consumed quickly by latent demand
            within LAN and backbone infrastructure;

      -     Deployment costs and increases in recurring service charges can be
            prohibitively expensive, especially for networks with many remote
            sites and for international networks; and

      -     There is no application performance visibility to enable effective
            capacity planning.

      Implementing queuing-based features. Queuing technologies provide some
degree of prioritization and are frequently incorporated in routers, which are
devices that forward data packets from one LAN or WAN to another. These
implementations engage only after queues form, and attempt to provide quality of
service, or QoS, by reordering packets and then discarding packets when the
queues overflow. Router-based approaches typically identify and prioritize
traffic based on rudimentary characteristics such as port number, a simplistic
mechanism to coordinate the transmission of application data, IP address or
protocol type. While these approaches can alleviate some of the bandwidth
contention problems, they are inadequate to handle an increasingly complex mix
of interactive and real-time mission-critical applications. These limitations
include:

      -     Queuing-based approaches are reactive in nature and can only address
            congestion after the fact, rather than preventing it from occurring;

      -     Congested queues result in packet loss, retransmissions and delays
            that waste bandwidth and undermine application response times;

      -     Limited traffic classification capabilities inadequately distinguish
            between different types of applications, resulting in sub-optimal
            prioritization of traffic;

      -     Queuing does not directly control end-to-end application
            performance; and

      -     Queuing-based approaches do not control inbound traffic flowing from
            the WAN to the LAN.

      Installing network-management tools. Several vendors provide software that
analyzes and monitors network traffic. While these products enable network
administrators to determine how bandwidth is being utilized, thereby identifying
where bandwidth management is required, they do not comprise a complete solution
for the following reasons:

      -     These products only monitor and report application performance and
            bandwidth utilization, offering no means of fixing or resolving
            performance problems; and

      -     Products that detect problems once they occur are reactive and don't
            proactively prevent similar problems in the future.

The Bandwidth Management Opportunity

      As Internet computing is more widely adopted, both businesses and service
providers are seeking ways to cost-effectively manage bandwidth, ensure
application performance and increase network efficiency. As mission-critical
applications compete with bandwidth-hungry non-critical traffic for limited
network resources, enterprises require a solution that not only monitors and
reports on application performance problems, but also provides the means to fix
such problems. As the complexity of their network infrastructures increases,
enterprises seek solutions that integrate easily into the existing network and



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are cost-effective to deploy and maintain. In response to growing competition,
service providers are looking to create new revenue streams by offering
differentiated network and application-based services that meet the needs of
enterprise customers. Whether the solution is implemented by the enterprise or
purchased from a service provider, effectively managing the performance of
mission-critical applications is essential to businesses relying on Internet
computing.

THE PACKETEER SOLUTION

     Packeteer is a leading provider of Internet application infrastructure
systems designed to enable businesses and service providers to ensure the
quality of experience for networked applications and application services.
Packeteer's advanced PacketWise software, the foundation of the Company's
innovative PacketShaper and AppVantage systems, integrates application
discovery, analysis, control and reporting technologies that are required for
proactive application performance and bandwidth management. Packeteer's products
are deployed today by companies and service providers through an established
network of more than 100 VARs, distributors and system integrators in more than
50 countries.

     PacketWise software is at the core of our bandwidth management solutions
and is embedded in Packeteer-manufactured products and OEM-manufactured
products. Our PacketShaper family of products consists of hardware platforms
based on Intel compatible microprocessor technologies that run various
configurations of our PacketWise software. Our PacketShaper products provide
customers with a solution designed to be deployed easily and cost-effectively
without additional investment in or impact to network equipment, software or
infrastructure. In addition, by working with OEM partners to embed PacketWise
technology into their networking products, we are able to address new market
opportunities that are outside of the scope of our PacketShaper family of
products.

     As the enterprise network increasingly extends to include the Internet,
network managers are challenged with managing the dynamic growth in critical and
non-critical traffic. Each particular application and type of traffic -- such as
transactions, file transfers, voice or streaming multimedia -- requires a
tailored management strategy to ensure optimal performance. Our solutions are
based on a comprehensive four-step methodology that provides the elements for
effective bandwidth management:

      I.    Discover and Classify Traffic. Currently, PacketShaper automatically
            detects and identifies over 200 types of traffic. Network managers
            can refine traffic categories based on application, protocol, web
            page, addresses, users and host names. In addition, managers can
            define criteria to recognize proprietary applications so that
            PacketShaper automatically classifies the associated traffic.
            Sophisticated traffic classification enables network managers to
            understand network congestion and to precisely target
            bandwidth-allocation policies.

      II.   Analyze Performance. PacketShaper provides detailed analysis and
            evaluation of network resources and application performance.
            PacketShaper tracks traffic levels and trends, measures response
            times and calculates network efficiency. Network managers can
            analyze all traffic traversing a particular WAN access link or can
            focus on an individual application, client, server or traffic type.

      III.  Control Traffic. PacketShaper allows network managers to control
            application performance and network resources by defining precise
            bandwidth-allocation policies. Policies can protect important
            traffic, cap bandwidth-intensive traffic and guarantee service
            levels. Network managers can tailor management strategies and
            bandwidth allocation to suit the requirements of particular
            applications or traffic, such as voice, video or data. PacketShaper
            paces both inbound and outbound traffic over the WAN access link to
            optimize performance and control end-to-end QoS. Our control
            technology can also prohibit specific applications, such as
            web-based entertainment or leisure applications, from utilizing any
            enterprise resources.



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      IV.   Report Performance. PacketShaper provides reports describing current
            and historical network performance. Comprehensive reports, graphs
            and tables enable network managers to refine bandwidth management
            policies, evaluate efficiency and plan capacity. PacketShaper
            automatically measures per-transaction response times for each
            application. Managers can set, enforce and monitor service-level
            agreements, which quantify desired QoS for a particular application
            or customer.

      Our dynamic four-step approach to application-adaptive bandwidth
management enables businesses and service providers to realize the following key
benefits:

      -     Gain Network Performance Visibility and Insight. PacketShaper
            provides valuable historical and real-time information about
            application performance and network utilization through an
            easy-to-use browser interface. Network managers gain a better
            understanding of the nature of traffic running on their networks and
            the problems and inefficiencies associated with that traffic.

      -     Ensure Bandwidth to Mission-Critical Applications. Policy-based
            bandwidth allocation protects bandwidth for mission-critical
            applications such as SAP R/3, Oracle and Baan, preventing
            disruptions from bandwidth-hungry but less urgent applications such
            as file transfers or casual web browsing.

      -     Simplify Deployment. PacketShaper installs easily and automatically
            starts to discover, classify and analyze network traffic and
            suggests policies to optimize performance. It complements the
            existing network infrastructure, requires no router reconfiguration
            or desktop changes and is designed not to disrupt network
            connectivity in the event of software or hardware failure.

      -     Enable Interactive Services. VoIP, real-time video and other
            streaming media require guaranteed bandwidth in order to achieve
            minimum quality requirements. By using PacketShaper to set minimum
            bandwidth guarantees and explicit delay bounds, network managers and
            service providers can deliver smooth and predictable performance of
            these delay-sensitive multimedia services.

      -     Increase Network Efficiency. PacketShaper improves network
            efficiency and helps delay expensive capacity upgrades by managing
            non-critical traffic to reduce retransmission overhead and smooth
            the variability in bandwidth utilization.

      -     Facilitate E-Commerce. PacketShaper can reserve bandwidth for
            individual web site customers on a shared WAN connection.
            PacketShaper can also optimize response time for certain web pages,
            such as product order and home pages, and redirect users with slower
            connections to less data-intensive web pages.

STRATEGY

      Our objective is to be the leading provider of application-adaptive
bandwidth management solutions. Key elements of our strategy include:

      Focus on Bandwidth Management Needs of Enterprises. We are focused on
providing high performance, easy-to-use and cost-effective bandwidth management
solutions to enterprises whose businesses are based on Internet computing. For
these businesses, managing mission-critical application performance and
optimizing the value of the network will continue to be competitive
requirements. As the Internet proliferates and new Internet-based applications
and services emerge, we believe businesses will continue to adopt Internet
computing business models at a rapid rate and that effective bandwidth
management will become an increasingly important requirement for maintaining an
efficient enterprise network. We believe we have established a differentiated
market position based on our comprehensive solution that provides for effective
bandwidth management, early market leadership and brand awareness. We intend to



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continue to direct our development, sales and marketing efforts toward
addressing the bandwidth management needs of the Internet computing market.

      Expand Presence in Telecommunications Service Provider Market. We are
actively pursuing opportunities in the service provider market and currently
have numerous service provider customers, including: BIGLOBE, a wholly owned
subsidiary of NEC Corporation; NTT Corporation; SONERA Technologies; Telefonica
de Espana; and Verio Inc. We believe service providers are under increasing
pressure to attract new subscribers, reduce subscriber turnover, improve
operating margins and develop new revenue streams. Specifically, service
providers seek to differentiate themselves through value-added service
offerings, such as web hosting, application outsourcing and application
service-level management. We believe our PacketShaper and PacketWise solutions
enable service providers to deliver these higher value services by enhancing
network and application performance and better managing and allocating network
resources. Our goal is to increase demand for our solutions with service
providers by leveraging our strong enterprise presence.

      Expand presence in the Application Service Provider Market. Several of our
partners, Futurelink, Telepacific, Esoft Global and Compaq Computer Corporation
are currently evaluating our application service provider product, AppVantage.
AppVantage(TM) is the industry's first policy-based application subscriber
management (ASM) system for the rapidly growing application service provider
(ASP) market. The AppVantage system provides an application infrastructure that
enables ASPs to quickly and cost-effectively deliver secure, measured and
performance-assured application services tailored to the needs of specific
markets and customers. The system is the first ASP-tailored platform to deliver
a clearly defined service demarcation point between ASPs and their customers and
delivery-chain partners; provide and enforce quality of service (QoS)
application-specific service level agreements (SLAs); and enable
application-specific billing. AppVantage will benefit ASPs by enabling faster
time-to-market for new services, reduced service cost basis and increased
revenues.

      Continue to Build Indirect Distribution Channels. We believe we have built
on a worldwide distribution channel. We currently have over 100 VARs,
distributors, systems integrators and OEMs, that sell our products in over 50
countries. These relationships include: Syncordia Solutions, a division of
British Telecommunications PLC; Datacraft Asia Ltd.; Fujitsu Limited; Macnica;
Nissho Electronics Corporation; Persetel PQ Client Computing, a subsidiary of
Comparex Holdings; Unisys Corp.; and Williams Communications Solutions, LLC.
Recently, we entered into an agreement with Alcatel Business Systems to
distribute our products globally. We have recently signed an agreement with
Alternative Technology to distribute products in the U.S. We intend to continue
to develop and support new VAR and distribution relationships, as well as to
establish additional indirect channels with service providers, systems
integrators and OEMs. We believe this strategy will enable us to increase the
worldwide deployment of our products.

      Develop OEM Relationships to Broaden PacketWise Deployment. We have
designed our PacketWise software in distinct modules to integrate with network
hardware platforms offered by other vendors. This integration brings Packeteer's
unique capabilities into markets where QoS is required but is beyond the scope
of the PacketShaper offering. We currently have two software OEM relationships.
ADC Telecommunications has licensed portions of our PacketWise software to
incorporate in its networking products. Adtran has licensed PacketWise
technology to enable classification and partitioning in managed network services
products. In addition, NEC sell PacketShaper with PacketWise software under
their own labels. These private label relationships allow our products to reach
consumers and markets that we would have difficulty reaching alone. With NEC we
have partners in Asia that provide local account management. We intend to pursue
additional OEM relationships in order to drive the proliferation of our
technology in enterprise and service provider networks.

      Extend Bandwidth Management Technology Leadership. Our technological
leadership is based on our sophisticated traffic classification, flexible
policy-setting capabilities, precise rate control expertise and ability to
measure response time and network performance. We intend to invest our research



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and development resources to increase performance by handling higher speed WAN
connections, functionality by identifying and managing additional applications
or traffic types, and modularity by taking individual components of Packetwise
together or on a stand-alone basis of our existing bandwidth management
solutions and to develop new leading-edge technologies for emerging markets.
This includes extending our bandwidth management solutions to incorporate
in-depth application-management techniques that will improve performance over
the Internet and reduce bandwidth requirements. We plan to extend our current
portfolio by offering PacketWise-defined solutions that target the specific
needs of three primary market opportunities: application service-level
management, enterprise bandwidth management and service provider bandwidth
management.

PRODUCTS

      We provide application-adaptive bandwidth management solutions to address
the needs of both businesses and service providers. Our products incorporate
innovative technology for discovery, classification, analysis, control and
management of disparate traffic flows in congestion-prone TCP/IP WAN access
links. Our PacketWise software is at the core of our bandwidth management
solutions and is embedded in our PacketShaper family of products, which includes
the AppVantage models. PacketShaper products consist of Intel compatible
microprocessor technology running various configurations of PacketWise. We also
license our PacketWise software to OEM partners for incorporation in their
networking products.

      PacketShaper is available in three models to fit a broad range of network
environments, including corporate and service providers' data centers,
enterprise networks, branch offices and remote sites, as well as a wide variety
of additional network environments. Our PacketShaper products support multiple
WAN access link speeds. In addition, our solution supports thousands of
simultaneous sessions involving a wide range of protocols. Each of our
PacketShaper models is described below:


PacketShaper 1000      PacketShaper 1000 targets the needs of branch
                       offices and remote sites. It connects to 10 megabits per
                       second, or Mbps, Ethernet LANs and manages WAN access
                       links with speeds up to 384 Kbps.
PacketShaper 2000      PacketShaper 2000 targets the requirements of
                       enterprise network administrators and Internet service
                       providers. It connects to 10 Mbps LANs and manages WAN
                       access links with speeds up to 8 Mbps, or two T1/E1
                       lines.
PacketShaper 4000      PacketShaper 4000 targets corporate data centers and Fast
                       Ethernet LAN, or 100 Mbps, environments. It connects to
                       10 or 100 Mbps LANs and controls WAN access links with
                       speeds up to 45 Mbps, or a T3 line. This model also has
                       redundant power supplies and cooling fans, which are
                       important features in service provider environments. Even
                       if one of the fans or power supplies fails, PacketShaper
                       still operates.
PacketShaper 4000/ISP  PacketShaper 4000/ISP targets service providers
                       and Fast Ethernet LAN, or 100 Mbps, environments. This
                       model contains a high-capacity, factory-installed
                       software option. It connects to 10 or 100 Mbps LANs and
                       controls WAN access links with speeds up to 45 Mbps, or a
                       T3 line. This model also has redundant power supplies and
                       cooling fans, which are important features in service
                       provider environments. Even if one of the fans or power
                       supplies fails, PacketShaper still operates.

      PacketShapers are designed to be deployed easily and cost-effectively in
an existing network configuration. PacketShaper does not require any new
protocols, standards, router reconfiguration or desktop changes. Additionally,
each PacketShaper features a passive connector that maintains network
connectivity if a PacketShaper is turned off or shuts down due to a hardware or
software failure. PacketShapers are typically deployed between the LAN and the
WAN access router in order to manage bandwidth at the WAN access link where
traffic needs to be controlled to avoid a bottleneck.



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      AppVantage is the industry's first policy-based application subscriber
management system specifically designed to support managed application services.
AppVantage provides a comprehensive infrastructure that enables Application
Service Providers (ASPs) to provision, monitor, measure and control customers'
quality of experience for each application service. It provides a point of
demarcation between the customer and the ASP; defines, enforces and validates
application service-level agreement (ASLAs); controls application performance;
and integrates billing. The AppVantage Application Subscriber management (ASM)
product line has three models that support a range of deployment options and
network capacities:

ASM-30     Low-range platform designed for connecting remote customer branches
           at WAN speeds up to 512 kbps.
ASM-50     Mid-range platform designed for WAN speeds up to 6 Mbps. This model
           is modular in that it is configured with two PCI-based expansion
           slots to support future expansion while dual power supplies and
           power-source connections ensure reliability.
ASM-70     High-performance platform designed for ASP and customer datacenters
           at WAN speeds up to 45 Mbps. This model is also modular because it is
           configured with two PCI-based expansion slots to support future
           expansion while the dual power supplies and power-source connections
           ensure reliability.


TECHNOLOGY

      We differentiate our solution by combining our knowledge of enterprise
applications with our expertise in underlying network protocols. We have
invested heavily in developing valuable, proprietary software and related
technologies. In particular, we have developed expertise and technology in these
major areas: sophisticated traffic discovery and classification, flexible policy
definition and enforcement, precise rate control, application-based
response-time measurement, high-performance packet engines and scaleable
configuration. We have tied together these technologies with an easy-to-use, web
browser interface in order to insulate the end user from the sophistication of
the underlying technology and to allow them to derive the benefits of the
technology with minimal effort.

Sophisticated Traffic Discovery and Classification

      The ability to automatically detect and classify an extensive collection
of applications and protocols differentiates PacketShaper from other bandwidth
management technologies. Sophisticated traffic classification is crucial to
understand network congestion and to target appropriate bandwidth-allocation
policies. Network software or devices that claim QoS features typically offer
rudimentary solutions because they can identify traffic based only on protocol
type or port numbers. This approach limits application-specific QoS capabilities
because these products do not recognize the detailed information required to
make intelligent classification decisions. PacketShaper discovers and classifies
traffic by focusing on content and applications where value to the end user
lies.

      Relying only on more basic protocols to classify traffic prevents network
managers from discovering important traffic trends and limits policy-setting.
Sophisticated traffic types such as voice calls over networks based on Internet
Protocol, or VoIP, Oracle 8, TN3270, Citrix, and Microsoft DCOM cannot be
identified using rudimentary traffic classification schemes. PacketShaper
identifies traffic markers, detects changing, or dynamic, port assignments and
tracks transactions with changing port assignments. This sophisticated traffic
classification allows network managers to set policies and control the traffic
related to an individual application, session, client, server or traffic type.
PacketShaper permits a network manager to isolate each published application
running on a centralized server and can also differentiate among various
applications using the same port. For example, noncritical applications such as
web browsing and PointCast and mission-critical applications such as PeopleSoft
e7.5 and critical web sites are all assigned to the same TCP port number on a
network but can be individually classified using PacketShaper.

                                       10

<PAGE>   11




      PacketShaper needs no assistance from network managers to automatically
detect and identify over 150 traffic types. Without a sophisticated
identification and classification capability, managers are usually unaware of
the diversity of their own network traffic. In addition, managers can define
proprietary applications so that their traffic can be recognized and reported.
Our PacketShaper technology is differentiated by its ability to recognize older
enterprise protocols, such as AppleTalk, DECnet, IPX and SNA. We continuously
enhance PacketShaper's classification capability to include new traffic types.
Any traffic category can be made even more specific by adding more detailed
criteria -- for example, Oracle traffic to or from a particular database. The
PacketShaper automatically classifies over 200 different traffic types, some of
which are listed below. The traffic types are named either with their associated
protocol or application and are grouped according to the class of application
which generated that traffic. Each traffic type has an associated protocol which
allows it to be recognized on the network.


<TABLE>
<CAPTION>

CLIENT/SERVER   DIRECTORY     E-MAIL      FILE           INTERNET    LEGACY LAN
- -------------   SERVICES      ------      SERVER         --------    AND NON-IP
<S>             ---------     <C>         ------         <C>         ----------
Baan            <C>            biff       <C>            ActiveX     <C>
CORBA           CRS           cc:MAIL     Lockd          FTP         AppleTalk
FileMaker Pro   DHCP          Indent      NetBIOS-IP     Gopher      AFP
FIX             DNS           IMAP        NFS            HTTP        CU-Dev
Lotus Notes     DPA           MS DCOM     Netware 5      IPv6        DECnet
MS DCOM         Finger       (Exchange)   SLP            IRC         DLS
MS SQL          LDAP          MSSQ                       ISAKMP      IPX
Oracle          RADIUS        POP3                       Kerberos    FNA
Oracle 8i       rwho          SMTP        GAMING         NNTP        LAT
SMS             LDAP                      SYSTEMS        SOCKS       NetBEUI
                                          -------
Sun RPC         TACACS                    Doom           SSH         SNA
                whois                     Kali           SSL
                WINS                      Quake          TFTP        MESSAGING
                                                                     ---------
                                          Quake II TCP   UDP         Groupwise
                                          Quake II UDP   UUCP        Yahoo Msg

NETWORK         PRINT       ROUTING       SESSION      STREAMING     VOICE OVER
MANAGEMENT      -----       -------       -------      MEDIA         ----------
PROTOCOL        LPR         AURP          Citrix       -----         Clarent CC
- ----------      TN3287      BGP           OpenConnect  MPEG          CUSeeMe
  Cisco         TN5250p     CBT           PCAnywhere   NetShow       H.323
    Discovery               DRP           RDP          RealAudio     I-Phone
ICMP            PUSH        EGP           rlogin       RTSP          Micom VIP
NTP             ----
REXEC           Backweb     EIGRP         Telnet       Shoutcast     RTCP
SNMP            Marimba     IGMP          Timbuktu     Streamworks   RTP
SYSLOG          PointCast   OSPF          TN3270       WindowsMedia  T.120
                            OSI           TN5250                     VDOPhone
                            PIM           Xwindows     TUNNELING
                                                       ---------
                            RARP                       DLS
                            RIP                        GRE
                            Spanning Tree              IPSEC
                                                       L2TP
                                                       RC5DES
                                                       PPTP
</TABLE>


Flexible Policy Definition and Enforcement

      PacketShaper provides network managers flexible tools to tailor solutions
for different applications or traffic types. Unlike queuing-based approaches,
PacketShaper allows network managers to do more than just prioritize one traffic
type over another. Our policy features offer the flexibility required to tune
bandwidth to specific applications and dynamically utilize available bandwidth.
Our policy features may be used individually or in conjunction with each other.
PacketShaper policy features include:

      -     Per-session rate policies. These policies enable network managers to
            limit or guarantee bandwidth to each individual session of an



                                       11
<PAGE>   12

            application's traffic. Per-session policies allocate each session an
            appropriate amount of bandwidth and prevent one large session from
            inappropriately impacting others. Network managers specify a
            minimum-guaranteed rate and allow the session scaled access to
            additional available bandwidth. For example, a bandwidth cap for
            traffic prevents web browsers from competing for bandwidth required
            by mission-critical applications. Likewise, a guaranteed rate for
            audio or video streams ensures that they are not interrupted by
            traffic that tends to consume any available bandwidth.

      -     Partitions. Partitions allow the creation of a separate, exclusive
            channel within a WAN access link. Partitions represent aggregate
            bandwidth minimums or maximums governing how much of the network can
            be used by a single application or traffic category. Partitions can
            be fixed, creating dedicated virtual circuits, or burstable,
            creating virtual circuits whose unused bandwidth can be shared.

      -     Priority policies. Priorities may be assigned to each application or
            traffic category. Eight priority levels are available. Priority
            policies are ideal for traffic that does not burst, non-IP traffic
            and traffic characterized by small, high-priority flows.

      -     Admission-control policies. Admission control determines the
            response if a bandwidth guarantee cannot be satisfied. Network
            managers may choose to deny access, accommodate an additional user
            with less than guaranteed performance, or, for web requests,
            redirect the request to another server. For example, if an online
            streaming-video service suffers a high- demand period and all
            available bandwidth is consumed, an admission-control policy could
            present a web page explaining that resources are busy. This allows a
            maximum number of users to receive a targeted service quality
            without degradation as new users seek to access the service.

      -     Discard and never-admit policies. These policies intentionally block
            traffic. Discard policies toss packets without sending feedback to
            the sender. Never-admit policies are similar to discard policies
            except that the policy informs the sender that service is blocked.

Precise Rate Control

      One of TCP/IP's primary weaknesses is an inability to guarantee QoS.
Unlike systems network architecture, or SNA, and asynchronous transfer mode, or
ATM, protocols, which have an embedded concept of rate, TCP/IP's attempts to
consume all available bandwidth conflict with the goal of predictable,
consistent, mission-critical application performance. PacketShaper's
standards-based TCP rate control technology overcomes TCP/IP's shortcomings by
proactively preventing congestion on both inbound and outbound flows and
increasing overall network throughput. Rather than discarding packets from a
congested queue, TCP rate control paces packet delivery to prevent congestion.
Rate control uses the remote user's access speed and real-time network latency
to calculate the optimal transmission speed. Evenly paced packet transmissions,
instead of packet bursts which consume all available bandwidth, yield
significant efficiency gains in the network. TCP rate control is a proactive and
precise way to increase network efficiency by avoiding retransmissions and
packet loss and creates a smooth, even flow rate that maximizes throughput. By
employing TCP rate control, PacketShaper manages the majority of traffic at the
access link before network congestion occurs.

      For non-TCP based traffic, such as UDP, alternative rate-based management
techniques must be implemented. Typically UDP does not rely on acknowledgments
to signal successful receipt of data, and it therefore offers no means for flow
control. By directly controlling other TCP flows, however, PacketShaper
effectively makes bandwidth available for UDP flows. The combination of per flow
rate scheduling and explicit delay bounds removes latency and variability, or
jitter, for the UDP flows traversing the WAN access link.

      For example, VoIP is a UDP-based application that is particularly


                                       12
<PAGE>   13

latency-sensitive, requiring packets to be evenly spaced to eliminate jitter.
PacketShaper enhances VoIP performance in two ways. First, PacketShaper manages
competing traffic by using rate control to constrain bursty TCP traffic. In
addition, a rate policy for VoIP gives a minimum bandwidth guarantee to each
flow, ensuring that each voice stream gets the bandwidth it needs for
predictable performance. When there is a lull in the conversation, any unused
bandwidth is re-allocated to other traffic.

Application-Based Response-Time Measurement

      PacketShaper's position in the enterprise network -- monitoring and
controlling all the traffic that passes -- gives it an opportunity to provide
accurate response-time measurements. Because it already handles and classifies
every packet, PacketShaper can easily calculate the time traffic spends
traveling between a client and a server and the time used by the server itself.

      PacketShaper breaks each response-time measurement into network delay, the
time spent in transit, and server delay, the time the server used to process the
request. It can highlight clients and servers with the slowest performance.
PacketShaper allows network managers to set acceptability standards and then
track whether performance adheres to the standards.

High-Performance Packet Engines

      Sophisticated classification and control of high-speed traffic must be
accomplished in an efficient manner. Adding significant delay in the process of
managing traffic flows would negate the resulting performance improvements.
Packeteer has developed expertise in the development of high-speed,
software-based packet engines running on real-time operating systems that can
efficiently process thousands of simultaneous high-speed connections with
minimal delay. This core-engine software technology scales to take advantage of
ever-increasing microprocessor performance to manage faster access links.

Scaleable Configuration

      Large deployments require tools to ease the process of updating tens or
hundreds of PacketShapers that are distributed throughout the network. To
address these requirements, PacketShaper offers its own features, aligns with
industry standards and integrates with third-party tools.

      For example, PacketShaper's Group Configuration Service is a feature in
the form of a web-based tool that network managers use to configure and deploy
large PacketShaper installations. As another example, PacketShaper can access a
lightweight directory access protocol, or LDAP, which is a networking industry
standard, to enable centralized management of data such as lists of IP
addresses. Finally, PacketShaper is accessible from within HP OpenView, a
Hewlett-Packard developed tool for network management.

CUSTOMERS

      We sell all of our products through indirect channel partners. The
following is a representative list of our indirect channel partners by
geographic region:


<TABLE>
<CAPTION>

                                            EUROPE, AFRICA
    NORTH AND SOUTH AMERICA              AND THE MIDDLE EAST                        ASIA
- --------------------------------   --------------------------------   --------------------------------
<S>                                <C>                                <C>
AmeriNet, Inc.                     Activis, Ltd.                      AsiaSoft HK Ltd.
Alternative Technology             ADAnet IIS                         Datacraft Asia Ltd.
Bay Data Consultants               Alcatel                            Kanematsu USA, Inc.
Comdisco Computer Corp.            Antea Consulting                   Lan Systems Pty Ltd.
Compaq Computer Corp.              Data Construction                  Macnica, Inc.
Data Transit                       Iperformances                      Nissho Electronics Corporation
DTM Corporation                    Logical Networks Plc               Teledata (Singapore) Ltd.
Ernst & Young, LLP                 ME Networks AG                     Unitech Computer Systems Limited
M-13                               MIEL
MicroVisions
</TABLE>


                                       13
<PAGE>   14
<TABLE>
<S>                                <C>                                <C>

NCA (Network                       Persetel PQ Client Computing
  Computing Architects, Inc.)      Telemation AG & Co Netzwerke
NETPLEX Systems, Inc.              Wang Holdings Netherlands B.V.
NETsource
Ocean Systems Engineer/ITI
(OSEC)
SE Technologies, Inc.
Solunet, Inc.
ThinApse Corp
Trivalent LAN Concepts, Inc.
Unisys Corp. through LACD
Williams Telecommunications
</TABLE>

     The following is a representative list of end users that have deployed
multiple PacketShapers:


<TABLE>
<CAPTION>

                            ENTERPRISES                                      SERVICE PROVIDERS
- -------------------------------------------------------------------   --------------------------------

<S>                                <C>                                <C>
American Bottling Company          Mitchell International, Inc.       BIGLOBE
Autodesk, Inc.                     Motorola, Inc.                     British Telecommunications PLC
Borden Chemical Inc.               Northwestern Mutual Life           Cypress Communications
Boy Scouts of America                Insurance Company                NTT Corporation
Cytec Industries Inc.              Shell                              SONERA Technologies
Domino's Pizza, Inc.               Sony Pictures Entertainment        Telefonica de Espana
EDS                                Staley/Tate & Lyle North America   Verio Inc.
Grant Thornton International       Standard & Poor's
Hoechst Marion Roussel AG          Transamerica Corporation
Hewlett-Packard Company            Unilever N.V.
</TABLE>




      In 1999, no one customer accounted for more than 10% of total net
revenues. In 1998, sales to Macnica accounted for 12% of total net revenues.
Sales to the top 10 indirect channel partners accounted for 37% and 45% of
total net revenues for the years ended December 31, 1999 and 1998, respectively.

      Sales to customers outside of North America constituted 55% and 55% of
total net revenues for the years ended December 31, 1999 and 1998, respectively.

      The following representative case studies of three of our current
customers illustrate how some of our customers have deployed our products:

      Autodesk. Autodesk is a leading supplier of PC design software and
multimedia tools used for a wide range of design, engineering, mapping and
design-visualization purposes. Autodesk sought to reduce spending on expensive
international WAN connections to its worldwide offices, as well as to ensure
predictable performance for mission-critical applications such as SAP, Citrix
WinFrame and Microsoft Outlook. Before installing PacketShaper, Autodesk
required two permanent virtual circuits, or PVCs, for each of its hub locations:
one for mission-critical applications and another for secondary traffic such as
file transfers. Using PacketShaper, Autodesk was able to consolidate its network
traffic, simplify its network management, reduce its PVC requirements by half,
and realize cost savings and efficiency by not maintaining additional network
infrastructure.

      Domino's Pizza. Domino's Pizza is a leader in pizza delivery. When
Domino's purchased a new order-processing application from PeopleSoft, it sought
to ensure that appropriate bandwidth would be available on its corporate network
while preserving performance for other important traffic such as IPX, which is
used for access to network directory services. Using PacketShaper, Domino's was
able to identify the different types of traffic on its network, including
traffic types it had not previously known were consuming bandwidth. Network
managers defined bandwidth-allocation policies to enable PeopleSoft performance,
protect other mission-critical applications, and reduce bandwidth for non-
urgent traffic during times of contention.

      Hoechst Marion Roussel. Hoechst Marion Roussel, or HMR, is a leading
pharmaceutical company with operations worldwide. When HMR began deploying SAP
R/3 in its Latin American operations to support mission-critical financial
management, manufacturing and sales functions, they found SAP R/3 competed for
network bandwidth with Microsoft Exchange. Adding more bandwidth was not an



                                       14
<PAGE>   15

effective solution because TCP/IP applications, such as Microsoft Exchange,
attempt to consume all of the available bandwidth on a network, leaving other
applications with inadequate bandwidth to perform properly. WAN bandwidth is
also very expensive in Latin America. Packeteer's TCP rate control technology
enabled HMR to manage their Microsoft Exchange traffic by setting appropriate
bandwidth policies for several applications and enabling SAP R/3 to perform even
during heavy network congestion. The easily deployable nature and remote
management capabilities of Packeteer's solution enabled HMR to deploy
PacketShapers in multiple sites where technical resources were scarce.

MANUFACTURING

      We outsource our manufacturing, including warranty repair, to two contract
manufacturers. PEMSTAR, located in San Jose, California, manufactures our
PacketShaper 1000 and 2000, and Sanmina, located in San Jose, California,
manufactures our PacketShaper 4000. The manufacturing processes and procedures
for both of these manufacturers are ISO 9002 certified. Outsourcing our
manufacturing enables us to reduce fixed costs and to provide flexibility in
meeting market demand.

      We design and develop the key components of our products, including
printed circuit boards and software. In addition, we determine the components
that are incorporated in our products and select the appropriate suppliers of
these components. Product testing and burn-in is performed by our contract
manufacturers using tests and automated testing equipment that we specify. We
also use inspection testing and statistical process controls to assure the
quality and reliability of our products.

      We use a rolling seven-month forecast based on anticipated product orders
to determine our material requirements. Lead times for the materials and
components we order vary significantly and depend on factors such as specific
supplier, contract terms and demand for a component at a given time. We submit
purchase orders for quantities requested within 90 days. PEMSTAR, Sanmina or
Packeteer may terminate the contract without cause at any time. At that time the
terminating party must honor all open purchase orders.

MARKETING AND SALES

      We target our marketing and sales efforts at enterprises and service
providers. Marketing and sales activities focus on reaching the corporate
application network managers responsible for the performance of mission-critical
applications in the enterprise. They also focus on reaching service providers
that provide valued-added service offerings, such as web hosting, application
outsourcing and application service-level management.

      Our marketing programs support the sale and distribution of our products
and educate existing and potential enterprise and service provider customers
about the benefits of our application-adaptive bandwidth management solutions.
Our marketing efforts include the following:

      -     publication of technical and educational articles in industry
            magazines;

      -     public speaking opportunities;

      -     web site-based communication and promotion;

      -     industry tradeshows, technical conferences and technology seminars;
            and

      -     advertising, direct mail and public relations.

      We classify our distribution channels in the following three categories:


      -     Solution Partners. We have established an indirect distribution
            channel which is comprised of a network of over 100 VARs,
            distributors and systems integrators that sell our solutions in over
            50 countries. These solution partners sell PacketShapers and other
            products that are


                                       15
<PAGE>   16

            complementary to our application-adaptive bandwidth management
            solution.


      -     Technology Partners. Technology partners are OEMs and companies with
            whom we have established joint development relationships. These
            partners license our PacketWise software for integration into their
            networking products. For example, we established a relationship with
            Hewlett-Packard to enhance HP OpenView so that PacketShaper can be
            managed through its interface.



      -     Alliance Partners. We have developed a marketing alliance program to
            establish new marketing relationships, as well as enhance existing
            relationships, with hardware, software and systems vendors. We
            believe that we can build brand awareness by working with alliance
            partners to identify the needs of specific customer environments.
            For example, we formed an alliance with Citrix to identify and
            enhance the performance of individual applications within the Citrix
            MetaFrame and WinFrame environments and an alliance with Clarent
            Corporation to identify and enhance the quality of their VoIP
            applications. We work with alliance partners on various joint
            marketing initiatives, including product literature, direct mailings
            and seminars. Some of these partners include Great Plains, Sales
            Logix and Attachmate.


      As of December 31, 1999, our worldwide sales and marketing organization
consisted of 60 individuals, including managers, sales representatives and
technical and administrative support personnel. We have ten domestic sales
offices located in Bedminster, New Jersey; Chicago, Illinois; Cupertino and San
Diego, California; Dallas, Irving and Grapevine, Texas; Fall River,
Massachusetts; Duluth, Georgia; and Tacoma, Washington. In addition, we have
four international sales offices located in Hong Kong; Sydney, Australia; Tokyo,
Japan; and Waddinxveen, The Netherlands.

      We believe there is a strong international market for our bandwidth
management solutions. Our international sales are conducted primarily through
our overseas offices. Sales to customers outside of North America accounted for
55% and 55% of our total net revenues in 1999 and 1998, respectively. In
addition, sales to Asia Pacific accounted for 26% and 31% of our total net
revenues in 1999 and 1998, respectively.

RESEARCH AND DEVELOPMENT

      As of December 31, 1999, our research and development organization
consisted of 30 employees, each with expertise in a different area of our
software: core engineering, classification, configuration and reporting
management, user interface and platform engineering. Since inception, we have
focused our research and development efforts on developing and enhancing our
application-adaptive bandwidth management solutions.

CUSTOMER SERVICE AND TECHNICAL SUPPORT

      Our customer service and support organization provides both product
maintenance and technical support services. Our technical support staff is
strategically located in five regional service centers: California, Hong Kong,
Japan, Australia and The Netherlands. Our indirect channel partners offer
similar support services for all of our products they sell. These services are
typically sold as a one-year contract to our resellers and end users. These
services are not provided without a maintenance contract.

COMPETITION

      We compete in a new, rapidly evolving and highly competitive sector of the
Internet application infrastructure system market. We expect competition to
persist and intensify in the future from a number of different sources.
Increased




                                       16
<PAGE>   17

competition could result in reduced prices and gross margins for our products
and could require increased spending by us on research and development, any of
which could harm our business. We compete with Cisco, CheckPoint and several
small private companies which sell products that utilize competing technologies
to provide bandwidth management. In addition, our products and technology
compete for information technology budget allocations with products that offer
monitoring technologies, such as probes and related software. Lastly, we face
indirect competition from companies that offer enterprises and service providers
increased bandwidth and infrastructure upgrades that increase the capacity of
their networks, and thereby may lessen or delay the need for bandwidth
management.

      We believe the principal competitive factors in the bandwidth management
solutions market are:

      -     expertise and in-depth knowledge of applications;

      -     timeliness of new product introductions;

      -     ability to integrate in the existing network architecture without
            requiring network reconfigurations or desktop changes;

      -     ability to ensure end-user performance in addition to aggregate
            performance of the WAN access link;

      -     compatibility with industry standards;

      -     products that do not increase latency and packet loss;

      -     size and scope of distribution network;

      -     brand name; and

      -     access to customers and size of installed customer base.

INTELLECTUAL PROPERTY

      We rely on a combination of patent, copyright and trademark laws, and on
trade secrets, confidentiality provisions and other contractual provisions to
protect our proprietary rights. These measures afford only limited protection.
We currently have three issued U.S. patents and nine pending patent applications
including one for which we have received a notice of allowance. We cannot assure
you that our means of protecting our proprietary rights in the U.S. or abroad
will be adequate or that competitors will not independently develop similar
technologies. Our future success depends in part on our ability to protect our
proprietary rights to the technologies used in our principal products. Despite
our efforts to protect our proprietary rights, unauthorized parties may attempt
to copy aspects of our products or to obtain and use trade secrets or other
information that we regard as proprietary. In addition, the laws of some foreign
countries do not protect our proprietary rights as fully as do the laws of the
U.S. We cannot assure you that any issued patent will preserve our proprietary
position, or that competitors or others will not develop technologies similar to
or superior to our technology. Our failure to enforce and protect our
intellectual property rights could harm our business, operating results and
financial condition.

      From time to time, third parties, including our competitors, have asserted
patent, copyright and other intellectual property rights to technologies that
are important to us. We expect that we will increasingly be subject to
infringement claims as the number of products and competitors in the
application-adaptive bandwidth management market grows and the functionality of
products overlaps. The results of any litigation matter are inherently
uncertain. In the event of an adverse result in any litigation with third
parties that could arise in the future, we could be required to pay substantial
damages, including treble damages if we are held to have willfully infringed, to
cease the manufacture, use and sale of infringing products, to expend
significant resources to develop non-infringing technology, or to obtain
licenses to the infringing technology. Licenses may not be available from any
third party that asserts intellectual property claims against us on commercially



                                       17
<PAGE>   18

reasonable terms, or at all. In addition, litigation frequently involves
substantial expenditures and can require significant management attention, even
if we ultimately prevail.

EMPLOYEES

      As of December 31, 1999, Packeteer employed a total of 107 full-time
employees. Of the total number of employees, 30 were in research and
development, 47 in sales and customer service, 13 in marketing, 3 in operations
and 14 in administration. Our employees are not represented by any collective
bargaining agreement with respect to their employment by Packeteer.

ITEM 2.    PROPERTIES

      We lease approximately 35,963 square feet of administrative and research
and development facilities in Cupertino, California. We believe our current
facilities will be sufficient to handle our operations for at least the next 12
months. We believe that future growth can be accommodated by obtaining the
necessary additional space. Packeteer leases sales offices in the following
locations: Duluth, Georgia; Bedminster, New Jersey; Dallas, Texas; Tacoma,
Washington; Sydney, Australia; Hong Kong; Tokyo, Japan; and Waddinxveen, The
Netherlands.

ITEM 3.    LEGAL PROCEEDINGS

      We have no material legal proceedings threatened or pending.


ITEM 4.    SUBMISSION OF MATTER TO A VOTE OF SECURITY HOLDERS

      Not applicable.


                                     PART II

ITEM 5.  MARKET FOR REGISTRANT'S COMMON STOCK AND RELATED STOCKHOLDER MATTERS

      Our common stock has been quoted on the Nasdaq National Market under the
symbol "PKTR" since our initial public offering on July 28, 1999. Prior to this
time, there was no public market for our common stock. The following table shows
the high and low sale prices per share of our common stock as reported on the
Nasdaq National Market for the periods indicated:

      As of February 29, 2000, there were approximately 1,179 holders of our
common stock. We have never declared or paid any dividends on our capital stock.
We currently expect to retain future earnings, if any, for use in the operation
and expansion of our business and do not anticipate paying any cash dividends in
the foreseeable future. The covenants under our Loan and Security Agreement with
Silicon Valley Bank prohibit us from paying cash dividends.


<TABLE>
<CAPTION>

                                                                 High         Low
                                                               -------      ------
          <S>                                                  <C>          <C>
          Fiscal 1999:
          Third Quarter (from July 28, 1999)..............     $ 56.50      $21.13
          Fourth Quarter..................................       75.38       29.75
</TABLE>


ITEM 6.    SELECTED FINANCIAL DATA

      The selected consolidated financial data set forth below should be read in
conjunction "Management's Discussion and Analysis of Financial Condition and
Results of Operations" and the Consolidated Financial Statements of Packeteer,
Inc. and the Notes thereto included elsewhere in this report. The historical
results are not necessarily indicative of the operating results to be expected
in the future.



                                       18
<PAGE>   19
<TABLE>
<CAPTION>
                                                                                    PERIOD FROM
                                                    YEARS ENDED DECEMBER 31,      JAN. 25, 1996
                                                   -------------------------     (INCEPTION) TO
                                                     1999      1998     1997      DEC. 31, 1996
                                                   ------    ------   ------     --------------
                                                        (in thousands,
                                                     except per share data)
<S>                                               <C>        <C>       <C>       <C>
CONSOLIDATED STATEMENTS OF OPERATIONS DATA:
Net revenues:
  Product revenues...........................     $ 16,824   $ 7,105   $ 1,413       $    --
  Licensing revenues.........................        1,617       125        --            --
                                                  --------   -------   -------       -------
       Total net revenues....................       18,441     7,230     1,413            --
Cost of revenues.............................        5,286     2,386       457            --
                                                  --------   -------   -------       -------
Gross profit.................................       13,155     4,844       956            --
Operating expenses:
  Research and development...................        5,164     2,779     2,932           725
  Sales and marketing........................       13,737     8,866     3,210           349
  General and administrative.................        2,936     1,750       934           238
  Amortization of stock-based compensation...        3,088       537        --            --
                                                  --------   -------   -------       -------
       Total operating expenses..............       24,925    13,932     7,076         1,312
                                                  --------   -------   -------       -------
Net loss from operations.....................      (11,770)   (9,088)   (6,120)       (1,312)
Interest and other income....................        1,757       367       238            75
Interest and other expense...................         (863)      (78)      (27)           --
                                                  --------   -------   -------       -------
Net loss.....................................     $(10,876)  $(8,799)  $(5,909)      $(1,237)
                                                  ========   =======   =======       =======
Basic and diluted net loss per share.........     $  (0.71)  $ (1.54)  $ (1.82)      $ (1.28)
                                                  ========   =======   =======       =======
Shares used in computing basic and diluted
  net loss per share.(1) ....................       15,343     5,709     3,253           965
                                                  ========   =======   =======       =======
</TABLE>


<TABLE>
<CAPTION>
                                                                       DECEMBER 31,
                                                           ------------------------------------
                                                            1999      1998       1997     1996
                                                           ------    ------     ------   ------
                                                                      (in thousands)
<S>                                                        <C>       <C>        <C>      <C>
CONSOLIDATED BALANCE SHEETS DATA:
Cash, cash equivalents and investments...................  $65,158   $4,477     $2,416   $4,255
Working capital..........................................   51,285    3,501      2,611    4,077
Total assets.............................................   71,106    8,570      4,935    4,453
Long-term obligations....................................      839      739        356       --
Total stockholders' equity...............................   59,120    3,759      2,804    4,251
</TABLE>


(1) See Note 1 of Notes to Consolidated Financial Statements for an explanation
    of the determination of the weighted average common and common equivalent
    shares used to compute net loss per share.

ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
         OF OPERATIONS

      The following discussion should be read in conjunction with our
consolidated financial statements and the related notes included elsewhere in
this report. Except


                                       19
<PAGE>   20

for historical information, the discussion in this report contains
forward-looking statements that involve risks and uncertainties. Our actual
results could differ materially from those anticipated in the forward-looking
statements as a result of a number of factors, including the risks described in
the section titled "Factors Affecting Operating Results" set forth below.


OVERVIEW

      Packeteer is a leading provider of Internet application infrastructure
systems designed to enable businesses and service providers to ensure the
quality of experience for networked applications and application services.
Packeteer's advanced PacketWise software, the foundation of the Company's
innovative PacketShaper and AppVantage systems, integrates application
discovery, analysis, control and reporting technologies that are required for
proactive application performance and bandwidth management.

Packeteer's products are deployed today by leading companies and service
providers through an established network of more than 100 VARs, distributors and
system integrators in more than 50 countries. In addition, PacketWise software
is licensed by major communications industry partners who integrate the software
into specific strategic networking solutions. We have subsidiaries in Hong Kong,
Japan and The Netherlands.

      We were incorporated in January 1996. From our inception through January
1997, our operating activities related primarily to establishing a research and
development organization, developing and testing prototype designs, establishing
a sales and marketing organization and developing customer, vendor and
manufacturing relationships. We shipped our first product, the PacketShaper
2000, in February 1997. Since then, we have focused on developing additional
products and product enhancements, building our worldwide indirect sales channel
and establishing our sales, marketing and customer support organizations. We
began shipments of the PacketShaper 1000 and 4000 in October 1997. Since
inception, we have incurred significant losses and as of December 31, 1999, had
an accumulated deficit of $26.8 million.

     In order to further the growth of our business, we sold 4,600,000 shares of
common stock in our initial public offering on July 28, 1999, which raised
approximately $62.6 million net of fees and expenses.

      We sell our products worldwide exclusively through VARs, distributors,
systems integrators and OEMs. We use indirect channels to leverage the reach of
our sales force to obtain worldwide coverage. Our sales force and marketing
efforts are used to develop brand awareness and support our indirect channels.

      We have a limited operating history. We have not achieved profitability on
a quarterly or annual basis, and we anticipate that we will incur net losses for
at least the next several quarters. We expect to continue to incur significant
sales and marketing, product development and administrative expenses and, as a
result, will need to generate significant quarterly revenues to achieve and
maintain profitability.


RESULTS OF OPERATIONS

      The following table sets forth certain financial data for the periods
indicated as a percentage of total net revenues. These historical operating
results are not necessarily indicative of the results for any future period.

<TABLE>
<CAPTION>
                                                        YEARS ENDED DECEMBER 31,
                                                        ------------------------
                                                        1999      1998      1997
                                                        ----      ----      ----
<S>                                                     <C>       <C>       <C>
Net revenues:
</TABLE>



                                       20
<PAGE>   21

<TABLE>
<S>                                                       <C>       <C>      <C>
  Product revenues..................................      91%       98%      100%
  Licensing revenues................................       9         2        --
                                                        ----      ----      ----
       Total net revenues...........................     100       100       100
Cost of revenues....................................      29        33        32
                                                        ----      ----      ----
Gross margin........................................      71        67        68
Operating expenses:
  Research and development..........................      28        38       208
  Sales and marketing...............................      74       123       227
  General and administrative........................      16        24        66
  Amortization of stock-based compensation..........      17         8        --
                                                        ----      ----      ----
       Total operating expenses.....................     135       193       501
                                                        ----      ----      ----
Net loss from operations............................     (64)     (126)     (433)
Interest and other income...........................      10         5        17
Interest and other expense..........................      (5)       (1)       (2)
                                                        -----     -----     -----
Net loss............................................     (59)%    (122)%    (418)%
                                                        ======    ======    ======
</TABLE>


Total net revenues

      Our total net revenues consist primarily of product sales and, to a lesser
extent, licensing fees from OEM partners. Our product revenues consist of sales
of our PacketShaper family of products. We recognize product revenues once the
customer issues a noncancelable purchase order and the product has been shipped
to the customer. Maintenance revenue is deferred and amortized over the period
of the contract. Service revenue is recognized as the services are performed.
Maintenance and service revenues to date have not been significant. We routinely
analyze and provide, as necessary, reserves at the time of shipment for product
returns and allowances. We have estimated these reserves based on our experience
and other available information since we began shipping. These amounts have not
been significant to date. Our ability to estimate these reserves is limited to
the short history we have of shipping products. Our licensing revenues currently
consist of licensing fees and royalty payments from unit sales of OEM products
that incorporate our technology. We recognize OEM license fees, which include
post-contract customer support, when the software has been shipped to the
customer, the fees are fixed and determinable and there is evidence of the fair
value of the post-contract customer support. When sufficient evidence of fair
value of post-contract customer support is not available, revenues are
recognized ratably over the support period. When we do not have sufficient
evidence of fair value of post-contract customer support for our OEM license
arrangements, we recognize the revenues for these arrangements over the support
period.

      Total net revenues increased to $18.4 million in fiscal 1999 from $7.2
million in fiscal 1998 and from $1.4 million in fiscal 1997. Product revenues
increased to $16.8 million in fiscal 1999 from $7.1 million in fiscal 1998 and
$1.4 million in fiscal 1997 due to the increased number of units sold as a
result of increased channel and market development and product acceptance.
Licensing revenues increased to $1.6 million in fiscal 1999 from $125,000 in
fiscal 1998 and $0 in fiscal 1997. These increases were due to license and
royalty revenues from the ADC Telecommunications and Adtran agreements.

     In fiscal 1999, no one customer accounted for more than 10% of total net
revenues. In fiscal 1998, sales to Macnica accounted for 12% of total net
revenues. Sales to the top 10 indirect channel partners accounted for 37% and
45% of total net revenues for fiscal 1999 and fiscal 1998, respectively. See
Note 9 of the Notes to Consolidated Financial Statements.

Cost of revenues

      Our cost of revenues consist primarily of the cost of finished products
purchased from our two turnkey manufacturers, documentation and other overhead
costs. We outsource the manufacturing of the PacketShaper 1000 and PacketShaper
2000 to PEMSTAR and the PacketShaper 4000 to Sanmina. Our cost of revenues
increased to $5.3 million in fiscal 1999 from $2.4 million in fiscal 1998 and
$457,000 in fiscal


                                       21
<PAGE>   22

1997. The cost of revenues represented 29%, 33% and 32% of total net revenues in
fiscal 1999, 1998 and 1997, respectively. The percentage decrease from fiscal
1998 to fiscal 1999 was due to increased economies of scale and reductions in
manufacturing costs. The percentage increase from fiscal 1997 to fiscal 1998 was
due to increases in manufacturing costs.

Research and development

      Research and development expenses consist primarily of salaries and
related personnel expenses, consultant fees and prototype expenses related to
the design, development, testing and enhancement of the PacketShaper family of
products and PacketWise software. Research and development expenses increased to
$5.2 million in fiscal 1999 from $2.8 million in fiscal 1998 and $2.9 million in
fiscal 1997. The increase in research and development expenses from fiscal 1998
to fiscal 1999 was due to increases in personnel, consulting and related
overhead costs. The decrease in research and development expenses from fiscal
1997 to fiscal 1998 was due to reduced design, development and prototype
expenses partially offset by increases in staffing and related personnel costs.
Research and development expenses represented 28%, 38% and 208% of total net
revenues in fiscal 1999, 1998 and 1997, respectively. These percentage decreases
were primarily due to increased total net revenues.

      As of December 31, 1999, all research and development costs have been
expensed as incurred. We believe that continued investment in research and
development is critical to attaining our strategic product and cost reduction
objectives. We expect these absolute dollar expenses to increase in the future
as we continue to develop new products and enhance existing products.

Sales and marketing

      Sales and marketing expenses consist primarily of salaries, commissions
and related personnel expenses for those engaged in the sales, marketing and
support of the product as well as related trade show, promotional and public
relations expenses. Sales and marketing expenses increased to $13.7 million in
fiscal 1999 from $8.9 million in fiscal 1998 and $3.2 million in fiscal 1997.
The increases in both fiscal 1999 and fiscal 1998 reflected the hiring of
additional personnel in connection with building our sales force, and channel
and increased marketing activities. Sales and marketing expenses represented
75%, 123% and 227% of total net revenues for fiscal 1999, 1998 and 1997,
respectively. These percentage decreases were due to increased total net
revenues. We intend to pursue sales and marketing campaigns aggressively and
therefore expect our absolute dollar expenses to increase in the future.

General and administrative

      General and administrative expenses consist primarily of salaries and
related personnel expenses for administrative personnel, professional fees and
other general corporate expenses. General and administrative expenses increased
to $2.9 million in fiscal 1999 from $1.8 million in fiscal 1998 and $934,000 in
fiscal 1997. General and administrative expenses represented 16%, 24% and 66% of
total net revenues for fiscal 1999, 1998 and 1997, respectively. These
percentage decreases were primarily due to increased net revenues. As we add
personnel and incur additional costs related to the growth of our business, we
expect our absolute dollar expenses to increase in the future.

Stock based compensation

      Amortization of stock-based compensation resulted from the granting of
stock options to employees and consultants with exercise prices per share
determined to be below the deemed fair value per share of our common stock on
the dates of grant for financial reporting purposes. The stock-based
compensation is being amortized to expense in accordance with FASB
Interpretation No. 28 over the vesting period of the individual options,
generally four years. We recorded stock-based compensation expense of $3.1
million and $537,000 in fiscal 1999 and 1998, respectively, leaving $2.1 million
to be amortized in future periods.

Interest and other income



                                       22
<PAGE>   23

      Interest and other income consists primarily of interest income on our
cash and investments. Interest and other income totaled $1.8 million, $367,000
and $238,000 for fiscal 1999, 1998 and 1997, respectively. The increase in
fiscal 1999 relates to interest income on proceeds from our initial public
offering in July 1999.

Interest and other expense

      Interest and other expense consists of interest expense related to our
line of credit, debt and capital lease obligations. Interest and other expense
totaled $863,000, $78,000 and $27,000 for fiscal 1999, 1998 and 1997,
respectively. The increase in fiscal 1999 relates to increased interest charges
on our line of credit, debt and capital lease obligations.

Income tax provision

      Since inception, we have incurred net operating losses for federal and
state purposes and have not recognized any tax provision or benefit. As of
December 31, 1999, we had net operating loss carryforwards of approximately
$23.6 million and $14.6 million for federal and state income tax purposes,
respectively. These carryforwards, if not utilized, expire beginning 2005
through 2019. Federal and state laws impose significant restrictions on the
utilization of net operating loss carryforwards in the event of a shift in our
ownership that constitutes an "ownership change", as defined in Section 382 of
the Internal Revenue Code. If we have an ownership change, the ability to
utilize the stated carryforwards could be significantly reduced. See Note 7 of
Notes to the Consolidated Financial Statements.

LIQUIDITY AND CAPITAL RESOURCES

      We have financed our operations primarily from the sale of preferred and
common stock and other financing activities such as bank credit against accounts
receivable, subordinated debt offerings and capital equipment leasing. Cash,
cash equivalents and investments totaled $65.2 million at December 31, 1999, an
increase of $60.7 million from $4.5 million at December 31, 1998. The increase
is due to the sale of common stock in our initial public offering in fiscal year
1999 and debt financing, partially offset by cash used in operations. Cash used
in operating activities in 1999 was $5.9 million, a decrease of $1.1 million
from $7.0 million in cash used in operating activities in 1998.

      We have a lease to finance the acquisition of computer software and
hardware, and furniture. Our original lease agreement was extended and expired
as of November 1999. As of December 31, 1999, approximately $1.1 million was
outstanding under capital lease obligations related to this original lease
agreement. We have negotiated a new lease agreement that expires on November 30,
2000. The new lease agreement was unused as of December 31, 1999 and has a
capacity of $1.5 million. We have a revolving credit facility against accounts
receivable which provided borrowings of up to $3.0 million and expired on
January 10, 2000. We have negotiated a renewal for the credit facility that will
provide borrowings of up to $5.0 million and will expire on January 9, 2001.
Borrowings under this credit facility bear interest at the prime rate, which was
8.5% as of December 31, 1999, are due upon demand and are secured by
substantially all of our assets. At December 31, 1999, we had borrowed $1.9
million against our credit facility.

      We also entered into subordinated loan and security agreements in January
1999 and May 1999. Borrowings under each of these agreements were $2.5 million
(for an aggregate amount of $5.0 million borrowed), bear interest at a rate of
12.25% and 12.76% per annum, respectively, and are secured by all of our
tangible assets. In August 1999, we repaid the $2.5 million borrowed under the
subordinated loan under the January 1999 agreement. At December 31, 1999, $2.5
million remained outstanding on the May 1999 agreement.

      We expect to experience growth in our working capital needs for the
foreseeable future in order to execute our business plan. We anticipate that
operating activities, as well as planned capital expenditures, will constitute a
partial use of our cash resources. In addition, we may utilize cash resources to
fund acquisitions or investments in complementary businesses, technologies or
products. We believe that our current cash, cash equivalents, investments and
cash generated from operations and available borrowings under our credit
facilities, will



                                       23
<PAGE>   24

be sufficient to meet our anticipated cash requirements for working capital and
capital expenditures for at least the foreseeable future.

Year 2000 Compliance

      Many currently installed computer systems and software products are coded
to accept only two-digit entries in the date code field. In order to distinguish
21st century dates from 20th century dates, the date code field needed to be
expanded to 4 digits. As a result, many companies' software and computer systems
were upgraded or replaced in order to comply with these year 2000 requirements.
The use of software and computer systems that are not year 2000 compliant could
have resulted in system failures or miscalculations resulting in disruptions of
operations, including among other things, a temporary inability to process
transactions, send invoices, or engage in normal business activities.

      To date, we have not suffered any disruptions in our computer systems or
software when the expanded date code field was first used on January 1, 2000. In
addition, to date, we have not been made aware that any third-party systems we
rely on, the manufacturing systems of our vendors or the systems our customers
use to order our services have suffered disruptions in their systems.

      To date, we have spent approximately $50,000 on year 2000 compliance. At
this time, we do not expect to incur future expenditures relating to year 2000
compliance matters.



                                  RISK FACTORS

      You should carefully consider the risks described below before making an
investment decision. If any of the following risks actually occur, our business,
financial condition or results of operations could be materially and adversely
affected. In such case, the trading price of our common stock could decline, and
you may lose all or part of your investment.

OUR LIMITED OPERATING HISTORY AND THE RAPIDLY EVOLVING MARKET WE SERVE MAKES
EVALUATING OUR BUSINESS PROSPECTS DIFFICULT

      We were incorporated in January 1996 and began shipping our products
commercially in February 1997. Because of our limited operating history and the
uncertain nature of the rapidly changing market that we serve, we believe the
prediction of future results of operations is difficult. As an investor in our
common stock, you should consider the risks and difficulties that we face as an
early stage company in a new and rapidly evolving market. Some of the specific
risks we face include our ability to:

     - execute our sales and marketing strategy;

     - maintain current and develop new relationships with key VARs,
       distributors, systems integrators and original equipment manufacturers,
       or OEMs; and

     - expand our domestic and international sales efforts.

WE HAVE A HISTORY OF LOSSES, EXPECT OUR EXPENDITURES TO INCREASE AND OUR LOSSES
TO CONTINUE, AND MAY NEVER ACHIEVE PROFITABILITY

     We have incurred losses since we commenced operations in 1996 and may never
achieve profitability. Furthermore, we currently expect that our operating
expenditures will continue to increase significantly and we may not generate a
sufficient level of revenues to offset these expenditures or be able to adjust
spending in a timely manner to respond to any unanticipated decline in revenues.
We incurred net losses of $5.9 million in 1997, $8.8 million in 1998 and $10.9
million in 1999. As of December 31, 1999, we had an accumulated deficit of $26.8
million. Although our revenues have grown in recent quarters, we cannot be
certain when or if we will realize sufficient revenues to achieve profitability.
If revenues grow slower than we anticipate or if operating expenditures exceed
our expectations or



                                       24
<PAGE>   25

cannot be adjusted accordingly, we may continue to experience significant losses
on a quarterly and annual basis. Even if we achieve profitability, we cannot
assure you that we can sustain or increase profitability on a quarterly or
annual basis in the future.

OUR FUTURE OPERATING RESULTS MAY NOT MEET ANALYSTS' EXPECTATIONS AND MAY
FLUCTUATE SIGNIFICANTLY, WHICH COULD ADVERSELY AFFECT OUR STOCK PRICE

      We believe that period-to-period comparisons of our operating results
cannot be relied upon as an indicator of our future performance. Our operating
results may be below the expectations of public market analysts or investors in
some future quarter. If this occurs, the price of our common stock would likely
decrease. Our operating results are likely to fluctuate significantly in the
future on both a quarterly and an annual basis due to a number of factors, many
of which are outside our control. Factors that could cause our operating results
to fluctuate include variations in:

     - the mix of products we sell;

     - the mix of channels through which those products are sold;

     - the average selling prices of our products;

     - the timing and size of orders and shipments of our products;

     - the amount and timing of revenues from OEMs; and

     - the amount and timing of our operating expenses.

     In the past, we have experienced fluctuations in operating results. For
example, gross margin decreased from 69.6% for the three months ended December
31, 1997 to 61.8% for the three months ended March 31, 1998, primarily due to
variations in the mix of products sold and variations in channels through which
products were sold. Research and development expenses have fluctuated due to
increased prototype expenses and consulting fees related to the launch of new
products, increased personnel expenses and costs associated with a facilities
move. Sales and marketing expenses have fluctuated due to increased personnel
expenses, expenditures related to trade shows and the launch of new products.
See "Management's Discussion and Analysis of Financial Condition and Results of
Operations" for detailed information on our annual operating results.

OUR RELIANCE ON SALES OF OUR PRODUCTS BY OTHERS MAKES IT DIFFICULT TO PREDICT
OUR REVENUES AND RESULTS OF OPERATIONS

      The timing of our revenues is difficult to predict because of our reliance
on indirect sales channels and the variability of our sales cycle. The length of
our sales cycle for sales through our indirect channel partners to our end users
may vary substantially depending upon the size of the order and the distribution
channel through which our products are sold. We expect to have difficulties in
predicting revenues from OEMs because we are unable to forecast unit sales of
their products which incorporate our technology. Sales from our VARs and systems
integrators to end users typically take three to four months to complete. We are
dependent on timely and accurate inventory information from our indirect channel
partners to enable us to establish channel inventory reserves for indirect
channel partners whose inventory exceeds normal stocking levels. If this
inventory information is not timely or accurate, we could experience increased
levels of sales returns or unforecasted fluctuations in future revenue.

      If revenues forecasted in a particular quarter do not occur in that
quarter, our operating results for that quarter could be adversely affected.
Furthermore, because our expense levels are based on our expectations as to
future revenue and to a large extent are fixed in the short term, a substantial
reduction or delay in sales of our products or the loss of any significant
indirect channel partner could harm our business.

IF THE BANDWIDTH MANAGEMENT SOLUTIONS MARKET FAILS TO GROW, OUR BUSINESS WILL



                                       25
<PAGE>   26

FAIL

      The market for bandwidth management solutions is in an early stage of
development and its success is not guaranteed. Therefore, we cannot accurately
assess the size of the market, the products needed to address the market, the
optimal distribution strategy, or the competitive environment that will develop.
In order for us to be successful, our potential customers must recognize the
value of more sophisticated bandwidth management solutions, decide to invest in
the management of their networks and the performance of important business
software applications and, in particular, adopt our bandwidth management
solutions. The growth of the bandwidth management solutions market also depends
upon a number of factors, including the availability of inexpensive bandwidth,
especially in international markets, and the growth of wide area networks.

IF WE ARE UNABLE TO DEVELOP AND MAINTAIN STRONG PARTNERING RELATIONSHIPS WITH
OUR INDIRECT CHANNEL PARTNERS, OR IF THEIR SALES EFFORTS ON OUR BEHALF ARE NOT
SUCCESSFUL, OUR SALES MAY SUFFER AND OUR REVENUES MAY NOT INCREASE

      We rely on an indirect distribution channel consisting of VARs,
distributors, systems integrators and OEMs for all of our revenues. Because many
of our indirect channel partners also sell competitive products, our success and
revenue growth will depend on our ability to develop and maintain strong
cooperative relationships with significant indirect channel partners, as well as
on the sales efforts and success of those indirect channel partners.

      We cannot assure you that our indirect channel partners will market our
products effectively or continue to devote the resources necessary to provide us
with effective sales, marketing and technical support. In order to support and
develop leads for our indirect distribution channels, we plan to expand our
field sales and support staff significantly. We cannot assure you that this
internal expansion will be successfully completed, that the cost of this
expansion will not exceed the revenues generated or that our expanded sales and
support staff will be able to compete successfully against the significantly
more extensive and well-funded sales and marketing operations of many of our
current or potential competitors. In addition, our indirect channel agreements
are generally not exclusive and one or more of our channel partners may compete
directly with another channel partner for the sale of our products in a
particular region or market. This may cause such channel partners to stop or
reduce their efforts in marketing our products. Our inability to effectively
establish or manage our distribution channels would harm our sales.

DEVELOPING STRONG OEM RELATIONSHIPS WILL BE TIME AND RESOURCE INTENSIVE AND MAY
NOT RESULT IN THE SUCCESSFUL DEPLOYMENT OF OUR TECHNOLOGY AND PRODUCTS

      One aspect of our sales strategy is to develop relationships with OEM
partners that will license our PacketWise software and incorporate it into their
networking products. If we are not successful in entering into suitable OEM
relationships, our ability to successfully deploy our PacketWise software and
build brand awareness would be harmed. The development of OEM relationships
generally involves a considerable amount of management time and company
resources as potential OEM partners evaluate the viability of integrating our
technology. We cannot assure you that potential OEM partners will enter into a
relationship with us after we have expended these efforts and costs. In
addition, even if we are successful in entering into an OEM relationship, we
cannot assure you that our current or future OEM partners will be able to
integrate our technology into commercially viable products on a timely basis.
Furthermore, we cannot assure you that our OEM partners will give a high
priority to the marketing and sale of products which incorporate our technology
or that our OEM partners will not develop competitive products and decide to
terminate or minimize their relationship with us. The failure to build and
maintain successful OEM relationships would have a negative effect on the
deployment of our technology and products.

IF WE ARE NOT ABLE TO MAINTAIN CURRENT AND FUTURE OEM RELATIONSHIPS, OUR
BUSINESS WILL BE HARMED

      We may be unable to retain our current or future OEM partners. Generally,


                                       26
<PAGE>   27

OEM relationships can be terminated with little or no notice. Our recent OEM
agreements with ADC Telecommunications, Inc. and Adtran, Inc. are not exclusive
and are each for an initial term of five years, with no obligation for either
ADC or Adtran to renew their respective agreements with us. We expect to enter
into similar OEM relationships in the future. If our relationship with any
current or future OEM partner is terminated by either party, we may not be
successful in replacing such partner on a timely basis or at all with another
suitable OEM partner.

OUR RELIANCE ON OEM PARTNERS FOR THE SALE OF OUR PRODUCTS MAKES IT DIFFICULT TO
MANAGE AND FORECAST PRODUCTION AND DELIVERY SCHEDULES AND SALES EXPECTATIONS

      Our inability to forecast the level of orders from OEM partners may make
it difficult to schedule production, manage our contract manufacturers, and
forecast sales. The level and timing of orders placed by OEM partners who
purchase hardware from us may vary due to many factors including OEM partners'
attempts to balance their inventories, changes in the OEM partners'
manufacturing strategies and variation in demand for their products. Due to
product life cycles, competitive and economic conditions, these OEM partners
generally do not commit to firm production schedules in advance. Anticipated
orders from our current or future OEM partners may not materialize or delivery
schedules may be deferred as a result of changes in customer's business needs.
These order fluctuations and deferrals will harm our business.

THE PACKETSHAPER FAMILY OF PRODUCTS, WHICH INCLUDES THE APPVANTAGE MODELS AND
PACKETWISE SOFTWARE ARE CURRENTLY OUR ONLY PRODUCTS, AND ALL OF OUR CURRENT
REVENUES AND A SIGNIFICANT PORTION OF OUR FUTURE GROWTH DEPENDS ON THEIR
COMMERCIAL SUCCESS

      All of our current revenues and a significant portion of our future growth
depends on the commercial success of our PacketShaper family of products and
PacketWise software, which are the only products that we currently offer. If our
target customers do not widely adopt, purchase and successfully deploy the
PacketShaper family of products or PacketWise software, our revenues will not
grow significantly.

IF OUR INTERNATIONAL SALES EFFORTS ARE UNSUCCESSFUL, OUR BUSINESS WILL FAIL TO
GROW

      The failure of our indirect partners to sell our products internationally
will harm our business. Sales to customers outside of North America accounted
for 54.7% of our total net revenues in 1998 and 54.9% of our total net revenues
in 1999. In particular, sales to customers in our Asia Pacific region accounted
for 31.0% of our total net revenues in 1998 and 26.0% of our total net revenues
in 1999. Our ability to grow will depend in part on the expansion of
international sales, which will require success on the part of our VARs,
distributors, systems integrators and OEMs in marketing our products.

      We intend to expand operations in our existing international markets and
to enter new international markets, which will demand management attention and
financial commitment. We may not be able to successfully expand our
international operations. In addition, a successful expansion of our
international operations and sales in foreign markets will require us to develop
relationships with suitable indirect channel partners operating abroad. We may
not be able to identify, attract or retain these indirect channel partners.

      Furthermore, to increase revenues in international markets, we will need
to continue to establish foreign operations, to hire additional personnel to run
these operations and to maintain good relations with our foreign indirect
channel partners. To the extent that we are unable to successfully do so, our
growth in international sales will be limited.

      Our international sales are currently all U.S. dollar-denominated. As a
result, an increase in the value of the U.S. dollar relative to foreign
currencies could make our products less competitive in international markets. In
the future, we may elect to invoice some of our international customers in local
currency. Doing so will subject us to fluctuations in exchange rates between the
U.S. dollar and the particular local currency.




                                       27
<PAGE>   28
SALES TO MACNICA OR OUR OTHER LARGE CUSTOMERS WOULD BE DIFFICULT TO REPLACE IF
LOST

      A limited number of indirect channel partners have accounted for a large
part of our revenues to date and we expect that this trend will continue.
Because our expense levels are based on our expectations as to future revenue
and to a large extent are fixed in the short term, any significant reduction or
delay in sales of our products to any significant indirect channel partner or
unexpected returns from these indirect channel partners could harm our business.
No one customer accounted for more than 10% of total net revenues in 1999.
Sales to Macnica, Inc. accounted for 12% of our total net revenues in 1998. We
expect that our largest customers in the future could be different from our
largest customers today. End users can stop purchasing and indirect channel
partners can stop marketing our products at any time. We cannot assure you that
we will retain these indirect channel partners or that we will be able to obtain
additional or replacement partners. The loss of one or more of our key indirect
channel partners or the failure to obtain and ship a number of large orders each
quarter could harm our operating results.

COMPETITION FOR EXPERIENCED PERSONNEL IS INTENSE AND OUR INABILITY TO ATTRACT
AND RETAIN QUALIFIED PERSONNEL COULD SIGNIFICANTLY INTERRUPT OUR BUSINESS
OPERATIONS

      Our future success will depend, to a significant extent, on the ability of
our management to operate effectively, both individually and as a group. Given
our early stage of development, we are dependent on our ability to attract,
retain and motivate high caliber key personnel. We have recently expanded our
sales force, and we are actively searching for systems engineers, research and
development engineers and sales and marketing personnel, all of whom are in
short supply. We currently have a small indirect channel partner and end-user
service and support organization and will need to increase our staff to support
new indirect channel partners and end users and the expanding needs of existing
indirect channel partners and end users. Additionally, we rely on qualified
systems engineers and service and support personnel to provide pre- and
post-sales technical support for our products. Competition for qualified
personnel in the networking industry, including systems engineers, sales and
service and support personnel, is intense, and we may not be successful in
attracting and retaining such personnel. There may be only a limited number of
persons with the requisite skills to serve in these key positions and it may
become increasingly difficult to hire such persons. Our business will suffer if
we encounter delays in hiring these additional personnel.

      Competitors and others have in the past and may in the future attempt to
recruit our employees. We do not have employment contracts with any of our
personnel. We currently maintain "key person" life insurance on Craig W.
Elliott, our chief executive officer, Robert L. Packer, our chief technology
officer, and Brett D. Galloway, our vice president of engineering and chief
operating officer. The loss of the services of any of our senior management
could negatively impact our ability to carry out our business plan.

WE MAY BE UNABLE TO COMPETE EFFECTIVELY WITH OTHER COMPANIES IN OUR MARKET
SECTOR WHO ARE SUBSTANTIALLY LARGER AND MORE ESTABLISHED AND WHO HAVE
SIGNIFICANTLY GREATER RESOURCES THAN OUR COMPANY

      We compete in a new, rapidly evolving and highly competitive sector of the
networking technology market. We expect competition to persist and intensify in
the future from a number of different sources. Increased competition could
result in reduced prices and gross margins for our products and could require
increased spending by us on research and development, sales and marketing and
customer support, any of which could harm our business. We compete with Cisco
Systems, Inc. and CheckPoint Software Technologies Ltd., which sell products
incorporating competing technologies. We also compete with several small private
companies which utilize competing technologies to provide bandwidth management.
In addition, our products and technology compete for information technology
budget allocations with products that offer monitoring capabilities, such as
probes and related software. Lastly, we face indirect competition from companies
that offer enterprises and service providers increased bandwidth and



                                       28
<PAGE>   29

infrastructure upgrades that increase the capacity of their networks, which may
lessen or delay the need for bandwidth management solutions.

      Many of our competitors are substantially larger than we are and have
significantly greater financial, sales and marketing, technical, manufacturing
and other resources and more established distribution channels. These
competitors may be able to respond more rapidly to new or emerging technologies
and changes in customer requirements or devote greater resources to the
development, promotion and sale of their products than we can. We have
encountered, and expect to encounter, customers who are extremely confident in
and committed to the product offerings of our competitors. Furthermore, some of
our competitors may make strategic acquisitions or establish cooperative
relationships among themselves or with third parties to increase their ability
to rapidly gain market share by addressing the needs of our prospective
customers. These competitors may enter our existing or future markets with
solutions that may be less expensive, provide higher performance or additional
features or be introduced earlier than our solutions. Given the market
opportunity in the bandwidth management solutions market, we also expect that
other companies may enter our market with alternative products and technologies,
which could reduce the sales or market acceptance of our products and services,
perpetuate intense price competition or make our products obsolete. If any
technology that is competing with ours is or becomes more reliable, higher
performing, less expensive or has other advantages over our technology, then the
demand for our products and services would decrease, which would harm our
business.

IF WE DO NOT EXPAND OR ENHANCE OUR PRODUCT OFFERINGS OR RESPOND EFFECTIVELY TO
TECHNOLOGICAL CHANGE, OUR BUSINESS MAY NOT GROW

      Our future performance will depend on the successful development,
introduction and market acceptance of new and enhanced products that address
customer requirements in a cost-effective manner. We cannot assure you that our
technological approach will achieve broad market acceptance or that other
technologies or solutions will not supplant our approach. The bandwidth
management solutions market is characterized by rapid technological change,
frequent new product introductions, changes in customer requirements and
evolving industry standards. The introduction of new products, market acceptance
of products based on new or alternative technologies, or the emergence of new
industry standards, could render our existing products obsolete or make it
easier for other products to compete with our products. Developments in
router-based queuing schemes could also significantly reduce demand for our
product. Alternative technologies, including packet-queuing technology, could
achieve widespread market acceptance. Our future success will depend in large
part upon our ability to:

     - develop and maintain competitive products;

     - enhance our products by adding innovative features that differentiate our
       products from those of our competitors;

     - bring products to market on a timely basis at competitive prices;

     - identify and respond to emerging technological trends in the market; and

     - respond effectively to new technological changes or new product
       announcements by others.

      We have in the past experienced delays in product development which to
date have not materially adversely affected us. However, these delays may occur
in the future and could result in a loss of customers and market share.

INTRODUCTION OF OUR NEW PRODUCTS MAY CAUSE CUSTOMERS TO DEFER PURCHASES OF OUR
EXISTING PRODUCTS WHICH COULD HARM OUR OPERATING RESULTS

      When we announce new products or product enhancements that have the
potential to replace or shorten the life cycle of our existing products,
customers may defer purchasing our existing products. These actions could harm



                                       29
<PAGE>   30

our operating results by unexpectedly decreasing sales, increasing our inventory
levels of older products and exposing us to greater risk of product
obsolescence.

IF WE ARE UNABLE TO EFFECTIVELY MANAGE OUR GROWTH, WE MAY EXPERIENCE OPERATING
INEFFICIENCIES AND HAVE DIFFICULTY MEETING DEMAND FOR OUR PRODUCTS

      We have rapidly and significantly expanded our operations and anticipate
that further significant expansion will be required to address potential growth
in our customer base and market opportunities. This expansion could place a
significant strain on our management, products and support operations, sales and
marketing personnel and other resources, which could harm our business.

      In the future, we may experience difficulties meeting the demand for our
products and services. The installation and use of our products requires
training. If we are unable to provide training and support for our products, the
implementation process will be longer and customer satisfaction may be lower. In
addition, our management team may not be able to achieve the rapid execution
necessary to fully exploit the market for our products and services. We cannot
assure you that our systems, procedures or controls will be adequate to support
the anticipated growth in our operations.

      We may not be able to install management information and control systems
in an efficient and timely manner, and our current or planned personnel,
systems, procedures and controls may not be adequate to support our future
operations.

THE AVERAGE SELLING PRICES OF OUR PRODUCTS COULD DECREASE RAPIDLY WHICH MAY
NEGATIVELY IMPACT GROSS MARGINS AND REVENUES

      We may experience substantial period-to-period fluctuations in future
operating results due to the erosion of our average selling prices. The average
selling prices of our products could decrease in the future in response to
competitive pricing pressures, increased sales discounts, new product
introductions by us or our competitors or other factors. Therefore, to maintain
our gross margins, we must develop and introduce on a timely basis new products
and product enhancements and continually reduce our product costs. Our failure
to do so would cause our revenue and gross margins to decline.

OUR RELIANCE ON PEMSTAR, INC. AND SANMINA CORPORATION FOR SUBSTANTIALLY ALL OF
OUR MANUFACTURING REQUIREMENTS COULD CAUSE US TO LOSE ORDERS IF THESE THIRD
PARTY MANUFACTURERS FAIL TO SATISFY OUR COST, QUALITY AND DELIVERY REQUIREMENTS

      We currently contract with PEMSTAR, Inc. and Sanmina Corporation, for the
manufacture of all of our current products. Any manufacturing disruption could
impair our ability to fulfill orders. Our future success will depend, in
significant part, on our ability to have others manufacture our products
cost-effectively and in sufficient volumes. We face a number of risks associated
with our dependence on third-party manufacturers including:

     - reduced control over delivery schedules;

     - the potential lack of adequate capacity during periods of excess demand;

     - manufacturing yields and costs;

     - quality assurance; and

     - increases in prices and the potential misappropriation of our
       intellectual property.

      We have no long-term contracts or arrangements with any of our vendors
that guarantee product availability, the continuation of particular payment
terms or the extension of credit limits. We have experienced in the past, and
may experience in the future, problems with our contract manufacturers, such as
inferior quality, insufficient quantities and late delivery of product. To date,
these problems have not materially adversely affected us. We may not be able to
obtain additional volume purchase or manufacturing arrangements on terms that we



                                       30
<PAGE>   31

consider acceptable, if at all. If we enter into a high-volume or long-term
supply arrangement and subsequently decide that we cannot use the products or
services provided for in the agreement, our business will be harmed. We cannot
assure you that we can effectively manage our contract manufacturers or that
these manufacturers will meet our future requirements for timely delivery of
products of sufficient quality or quantity. Any of these difficulties could harm
our relationships with customers and cause us to lose orders.

      In the future, we may seek to use additional contract manufacturers. We
may experience difficulty in locating and qualifying suitable manufacturing
candidates capable of satisfying our product specifications or quantity
requirements. Further, new third-party manufacturers may encounter difficulties
in the manufacture of our products resulting in product delivery delays.

MOST OF THE COMPONENTS FOR OUR PRODUCTS COME FROM SINGLE OR LIMITED SOURCES, AND
WE COULD LOSE SALES IF THESE SOURCES FAIL TO SATISFY OUR SUPPLY REQUIREMENTS

      Almost all of the components used in our products are obtained from single
or limited sources. Our products have been designed to incorporate a particular
set of components. As a result, our desire to change the components of our
products or our inability to obtain suitable components on a timely basis would
require engineering changes to our products before we could incorporate
substitute components.

      We do not have any long-term supply contracts to ensure sources of supply.
If our contract manufacturers fail to obtain components in sufficient quantities
when required, our business could be harmed. Our suppliers also sell products to
our competitors. Our suppliers may enter into exclusive arrangements with our
competitors, stop selling their products or components to us at commercially
reasonable prices or refuse to sell their products or components to us at any
price. Our inability to obtain sufficient quantities of sole-sourced or
limited-sourced components, or to develop alternative sources for components or
products would harm our ability to grow our business.

OUR PRODUCTS MAY HAVE ERRORS OR DEFECTS THAT WE FIND AFTER THE PRODUCTS HAVE
BEEN SOLD, WHICH COULD NEGATIVELY AFFECT OUR REVENUES, THE MARKET ACCEPTANCE OF
OUR PRODUCTS AND INCREASE OUR COSTS

      Our products are complex and may contain undetected defects, errors or
failures in either the hardware or software. In addition, because our products
plug into our end users' existing networks between the WAN access router and the
enterprise local area network, or LAN, they can directly affect the
functionality of the network. We have in the past encountered errors in our
products, which in a few instances resulted in complete network failures. To
date, these errors have not materially adversely affected us. Additional errors
may occur in our products in the future. The occurrence of defects, errors or
failures could result in the failure of our customer's network or
mission-critical applications, delays in installation, product returns and other
losses to us or to our customers or end users. In addition, we would have
limited experience responding to new problems that could arise with any new
products that we introduce. These occurrences could also result in the loss of
or delay in market acceptance of our products, which could harm our business.

      We may also be subject to liability claims for damages related to product
errors. While we carry insurance policies covering this type of liability, these
policies may not provide sufficient protection should a claim be asserted. A
material product liability claim may harm our business.

ANY ACQUISITIONS WE MAKE COULD RESULT IN DILUTION, UNFAVORABLE ACCOUNTING
CHARGES AND DIFFICULTIES IN SUCCESSFULLY MANAGING OUR BUSINESS

      We continually evaluate strategic acquisitions of other businesses. If we
were to consummate an acquisition, we would be subject to a number of risks,
including the following:

     - difficulty in integrating the acquired operations and retaining acquired
       personnel;



                                       31
<PAGE>   32

     - limitations on our ability to retain acquired distribution channels and
       customers;

     - diversion of management's attention and disruption of our ongoing
       business; and

     - limitations on our ability to successfully incorporate acquired
       technology and rights into our service offerings and maintain uniform
       standards, controls, procedures, and policies.

      We may not successfully overcome problems encountered in connection with
potential acquisitions. In addition, an acquisition could harm our operating
results by diluting our stockholders' equity, causing us to incur additional
debt, or requiring us to amortize acquisition expenses and acquired assets.

      Finally, recent and proposed changes by the Financial Accounting Standards
Board (FASB) and the SEC in the rules for merger accounting may affect our
ability to make acquisitions or be acquired. For example, elimination of the
"pooling" method of accounting for mergers increases the amount of goodwill that
we would be required to recognize if we acquire another company, which would
have an adverse financial impact on our future net loss or net income.

FAILURE TO ADEQUATELY PROTECT OUR INTELLECTUAL PROPERTY WOULD RESULT IN
SIGNIFICANT HARM TO OUR BUSINESS

      Our success depends significantly upon our proprietary technology and our
failure or inability to protect our proprietary technology would result in
significant harm to our business. We rely on a combination of patent, copyright
and trademark laws, and on trade secrets and confidentiality provisions and
other contractual provisions to protect our proprietary rights. These measures
afford only limited protection. We currently have three issued U.S. patents and
nine pending patent applications including one for which we have received a
notice of allowance. Our means of protecting our proprietary rights in the U.S.
or abroad may not be adequate and competitors may independently develop similar
technologies. Our future success will depend in part on our ability to protect
our proprietary rights and the technologies used in our principal products.
Despite our efforts to protect our proprietary rights and technologies
unauthorized parties may attempt to copy aspects of our products or to obtain
and use trade secrets or other information that we regard as proprietary. Legal
proceedings to enforce our intellectual property rights could be burdensome and
expensive and could involve a high degree of uncertainty. These legal
proceedings may also divert management's attention from growing our business. In
addition, the laws of some foreign countries do not protect our proprietary
rights as fully as do the laws of the U.S. Issued patents may not preserve our
proprietary position. If we do not enforce and protect our intellectual
property, our business will suffer substantial harm.

CLAIMS BY OTHERS THAT WE INFRINGE ON THEIR INTELLECTUAL PROPERTY RIGHTS COULD BE
COSTLY TO DEFEND AND COULD HARM OUR BUSINESS

      We may be subject to claims by others that our products infringe on their
intellectual property rights. These claims, whether or not valid, could require
us to spend significant sums in litigation, pay damages, delay product
shipments, reengineer our products or acquire licenses to such third-party
intellectual property. We may not be able to secure any required licenses on
commercially reasonable terms, or at all. We expect that we will increasingly be
subject to infringement claims as the number of products and competitors in the
bandwidth management solutions market grows and the functionality of products
overlaps. Any of these claims or resulting events could harm our business.

IF OUR PRODUCTS DO NOT COMPLY WITH EVOLVING INDUSTRY STANDARDS AND GOVERNMENT
REGULATIONS, OUR BUSINESS COULD BE HARMED

      The market for bandwidth management solutions is characterized by the need
to support industry standards as these different standards emerge, evolve and
achieve acceptance. In the United States, our products must comply with various
regulations and standards defined by the Federal Communications Commission and
Underwriters Laboratories. Internationally, products that we develop may be
required to comply with standards established by telecommunications authorities



                                       32
<PAGE>   33

in various countries as well as with recommendations of the International
Telecommunication Union. To remain competitive we must continue to introduce new
products and product enhancements that meet these emerging U.S. and
International standards. However, in the future we may not be able to
effectively address the compatibility and interoperability issues that arise as
a result of technological changes and evolving industry standards. Failure to
comply with existing or evolving industry standards or to obtain timely domestic
or foreign regulatory approvals or certificates could harm our business.

OUR GROWTH AND OPERATING RESULTS WOULD BE IMPAIRED IF WE ARE UNABLE TO MEET OUR
FUTURE CAPITAL REQUIREMENTS

      We currently anticipate that our existing cash and investment balances and
available line of credit will be sufficient to meet our liquidity needs for the
forseeable future. However, we may need to raise additional funds if our
estimates of revenues, working capital or capital expenditure requirements
change or prove inaccurate or in order for us to respond to unforeseen
technological or marketing hurdles or to take advantage of unanticipated
opportunities.

      In addition, we expect to review potential acquisitions that would
complement our existing product offerings or enhance our technical capabilities.
While we have no current agreements or negotiations underway with respect to any
such acquisition, any future transaction of this nature could require
potentially significant amounts of capital. These funds may not be available at
the time or times needed, or available on terms acceptable to us. If adequate
funds are not available, or are not available on acceptable terms, we may not be
able to take advantage of market opportunities to develop new products or to
otherwise respond to competitive pressures.

OUR EXECUTIVE OFFICERS AND DIRECTORS WILL BE ABLE TO CONTROL ALL MATTERS
REQUIRING STOCKHOLDER APPROVAL INCLUDING DELAYING OR PREVENTING A CHANGE IN OUR
CORPORATE CONTROL

      Our executive officers and directors and their affiliates together control
approximately 54.0% of the outstanding common stock as of December 31, 1999. As
a result, these stockholders, if they act together, will be able to control all
matters requiring stockholder approval, including the election of directors and
approval of significant corporate transactions. This concentration of ownership
may have the effect of delaying, preventing or deterring a change in control of
Packeteer, could deprive our stockholders of an opportunity to receive a premium
for their common stock as part of a sale of Packeteer and might affect the
market price of our common stock.

CERTAIN PROVISIONS OF OUR CHARTER AND OF DELAWARE LAW MAKE A TAKEOVER OF
PACKETEER MORE DIFFICULT, WHICH COULD LOWER THE MARKET PRICE OF THE COMMON STOCK

      Our corporate documents and Section 203 of the Delaware General
Corporation Law could discourage, delay or prevent a third party or a
significant stockholder from acquiring control of Packeteer. In addition,
provisions of our certificate of incorporation may have the effect of
discouraging, delaying or preventing a merger, tender offer or proxy contest
involving Packeteer. Any of these anti-takeover provisions could lower the
market price of the common stock and could deprive our stockholders of the
opportunity to receive a premium for their common stock that they might
otherwise receive from the sale of Packeteer.

ITEM 7a. Quantitative and Qualitative Disclosures about Market Risk

Fixed Income Investments

      Our exposure to market risks for changes in interest rates relate
primarily to investments in debt securities issued by U.S. government agencies
and corporate debt securities. We place our investments with high credit quality
issuers and, by policy, limit the amount of the credit exposure to any one
issuer.

      Our general policy is to limit the risk of principal loss and ensure the
safety of invested funds by limiting market and credit risk. All highly liquid
investments with less than three months to maturity are considered to be cash
equivalents;


                                       33
<PAGE>   34
 investments with maturities between three and twelve months are considered to
be short-term investments; and investments with maturities in excess of twelve
months are considered to be long-term investments. We do not expect any material
loss with respect to our investment portfolio. The following table presents the
amounts of cash equivalents and investments that are subject to market risk by
range of expected maturity and weighted average interest rates.

<TABLE>
<CAPTION>
                                                          December 31, 1999        December 31, 1998
                                                       ----------------------    ----------------------
                                                                    WEIGHTED-                 WEIGHTED-
                                                                    AVERAGE                   AVERAGE
                                                        CARRYING    INTEREST      CARRYING    INTEREST
                                                         AMOUNT       RATE         AMOUNT        RATE
                                                       ----------  ----------    ----------  ----------
 <S>                                                   <C>         <C>           <C>         <C>
Cash Equivalents:
Commercial paper, market auction preferred
  and medium-term notes, net of $2 and $0
  unrealized gain, as of December 31, 1999
  and 1998........................................       17,727       6.20%          2,389      5.58%

Short-term investments:
Commercial paper, corporate notes and bonds,
  and medium-term notes, net of $15 and $0
  of unrealized loss, as of December 31, 1999
  and 1998........................................       37,918       5.91%          1,927      5.80%

Long-term investments:
Corporate notes and medium-term notes, net of
  $45 and $0 of unrealized loss, as of
  December 31, 1999 and 1998......................        7,686       6.56%             --         --
                                                        -------                     ------
    Total investment securities...................      $63,331       6.07%         $4,316      5.68%
                                                        =======                     ======
</TABLE>

Foreign Exchange

      We develop products in the United States and sell in North America, South
America, Asia and Europe. As a result, our financial results could be affected
by factors such as changes in foreign currency exchange rates or weak economic
conditions in foreign markets. All sales are currently made in U.S. dollars;
however, a strengthening of the dollar could make our products less competitive
in foreign markets. We have no foreign exchange contracts, option contracts or
other foreign hedging arrangements.


                                       34
<PAGE>   35

ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

                           CONSOLIDATED BALANCE SHEETS
                       (in thousands, except per share data)

                                     ASSETS
<TABLE>
<CAPTION>
                                                                   DECEMBER 31,
                                                              --------------------
                                                                 1999       1998
                                                              ---------   --------
<S>                                                           <C>        <C>
Current assets:
  Cash and cash equivalents.................................  $ 19,554   $  2,550
  Short-term investments....................................    37,918      1,927
  Accounts receivable, less allowance for doubtful accounts
    of $217, and $293, as of December 31, 1999 and 1998,         3,931      2,745
  Other receivables.........................................        35         39
  Inventories...............................................       523        188
  Prepaids and other current assets.........................       471        124
                                                               -------   --------
      Total current assets..................................    62,432      7,573
Property and equipment, net.................................       755        794
Long-term investments.......................................     7,686         --
Other assets................................................       233        203
                                                               -------   --------
      Total assets..........................................  $ 71,106   $  8,570
                                                              ========   ========

                      LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Line of credit............................................  $  1,890   $     --
  Current portion of capital lease obligations..............       339        215
  Current portion of note payable...........................     2,524         71
  Accounts payable..........................................     1,302      1,015
  Accrued compensation......................................     1,480        253
  Other accrued liabilities.................................     2,400      1,011
  Deferred revenue..........................................     1,212      1,507
                                                               -------   --------
      Total current liabilities.............................    11,147      4,072
Capital lease obligations, less current portion.............       763        570
Note payable, less current portion..........................        76        151
Other long-term liabilities.................................        --         18
                                                              --------   --------
      Total liabilities.....................................    11,986      4,811
Commitments
Stockholders' equity:
  Preferred stock, $0.001 par value;
    Authorized: 5,000 and 13,703 shares at
      December 31, 1999 and 1998, respectively;
    Issued and outstanding: none and 12,391 shares
      at December 31, 1999 and 1998, respectively...........        --         13
  Common stock, $0.001 par value;
    Authorized: 85,000 and 40,000 shares at
      December 31, 1999 and 1998, respectively;
    Issued and outstanding: 26,792 and 9,723 shares
      at December 31, 1999 and 1998, respectively...........        27         10
Additional paid-in capital..................................    88,848     20,924
Accumulated other comprehensive loss........................       (58)        --
Deferred compensation.......................................    (2,138)      (514)
Notes receivable from stockholders..........................      (738)      (729)
Accumulated deficit.........................................   (26,821)   (15,945)
                                                              --------   --------
      Total stockholders' equity............................    59,120      3,759
                                                              --------   --------
      Total liabilities and stockholders' equity............  $ 71,106   $  8,570
                                                              ========   ========
</TABLE>


          See accompanying notes to consolidated financial statements.



                                       35
<PAGE>   36

                      CONSOLIDATED STATEMENTS OF OPERATIONS
                     (in thousands, except per share data)

<TABLE>
<CAPTION>

                                                          YEARS ENDED DECEMBER 31,
                                                     ------------------------------
                                                         1999       1998       1997
                                                     --------   --------   --------
<S>                                                  <C>        <C>        <C>
Net revenues:
  Product revenues...............................    $ 16,824   $  7,105   $  1,413
  Licensing revenues.............................       1,617        125         --
                                                     --------   --------   --------
       Total net revenues........................      18,441      7,230      1,413
Cost of revenues.................................       5,286      2,386        457
                                                     --------   --------   --------
Gross profit.....................................      13,155      4,844        956
Operating expenses:
  Research and development, excluding amortization
    of stock-based compensation of $459, $86 and
    none for 1999, 1998 and 1997, respectively....      5,164      2,779      2,932
  Sales and marketing, excluding amortization
    of stock-based compensation of $2,184, $436,
    and none for 1999, 1998 and 1997,respectively      13,737      8,866      3,210
  General and administrative, excluding
    amortization of stock-based compensation of
    $445, $15, and none for 1999, 1998 and 1997,
    respectively.................................       2,936      1,750        934
Amortization of stock-based compensation.........       3,088        537         --
                                                     --------   --------   --------
       Total operating expenses..................      24,925     13,932      7,076
                                                     --------   --------   --------
Net loss from operations.........................     (11,770)    (9,088)    (6,120)
Interest and other income........................       1,757        367        238
Interest and other expense.......................        (863)       (78)       (27)
                                                     --------   --------   --------
Net loss.........................................    $(10,876)  $ (8,799)  $ (5,909)
                                                     ========   ========   ========
Basic and diluted net loss per share.............    $  (0.71)  $  (1.54)  $  (1.82)
                                                     ========   ========   ========
Shares used in computing basic and diluted
  net loss per share.............................      15,343      5,709      3,253
                                                     ========   ========   ========
</TABLE>


          See accompanying notes to consolidated financial statements.



                                       36
<PAGE>   37

                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                                 (in thousands)
<TABLE>
<CAPTION>


                            Convertible                                            Accumulated
                          Preferred Stock   Common Stock  Additional                  Other
                          ---------------  --------------  Paid-in    Deferred    Comprehensive
                          Shares   Amount  Shares  Amount  Capital  Compensation      Loss
                          ------   ------  ------  ------  -------  ------------  -------------

<S>                        <C>      <C>     <C>     <C>     <C>       <C>           <C>
Balances,
  December 31, 1996......  7,622    $   8   7,359   $   7   $5,498    $    --       $   --
Issuance of preferred
  stock..................  2,216        2      --      --    4,389         --           --
Issuance of common stock
  upon exercise of
  stock options..........     --       --   1,940       2      242         --           --
Repurchase of common
  stock..................     --       --    (318)     --      (10)        --           --
Issuance of warrants for
  preferred stock........     --       --      --      --       26         --           --
Net loss.................     --       --      --      --       --         --           --
                           -----      ---   -----     ---  -------     -------      ------
Balances as of
  December 31, 1997......  9,838       10   8,981       9   10,145         --           --
Issuance of preferred
  stock..................  2,553        3      --      --    9,105         --           --
Issuance of common stock
  upon exercise of
  stock options..........     --       --   1,042       1      619         --           --
Stock-based compensation
  to non-employees.......     --       --      --      --      269         --           --
Issuance of common stock
  upon exercise of stock
  purchase rights........     --       --       6      --        1         --           --
Repurchase of common
  stock..................     --       --    (306)     --      (40)        --           --
Issuance of warrants for
  preferred stock........     --       --      --      --       38         --           --
Repayment of notes
  receivable from
  stockholders...........     --       --      --      --       --         --           --
Deferred compensation
  related to stock option
  grants.................     --       --      --      --      787       (787)          --
Amortization of
  stock-based
  compensation...........     --       --      --      --       --        273           --
Net loss.................     --       --      --      --       --         --           --
                           -----      ---   -----     ---  -------     -------      ------
Balances as of
  December 31, 1998...... 12,391       13   9,723      10   20,924       (514)          --
Stock-based compensation
  to non-employees.......     --      --      --       --      798         --           --
Stock options granted to
  non-employees..........     --      --      --       --       42         --           --
Issuance of common stock
  upon exercise of stock
  options................     --      --      125      --      278         --           --
Issuance of common stock,
  net of issuance costs
  of $6,445..............     --      --    4,600       4   62,552         --           --
Conversion of preferred
  stock..................(12,391)    (13)  12,391      13       --         --           --
Repurchase of common
  stock..................     --      --     (103)     --      (28)        --           --
Issuance of warrants for
  preferred stock........     --      --       --      --      368         --           --
Issuance of common stock
  upon exercise of
  warrants, net..........     --      --       56      --       --         --           --
Repayments of notes
  receivable from
  stockholders...........     --      --       --      --       --         --           --
Deferred compensation
  related to stock option
  grants.................     --      --       --      --    3,914     (3,914)          --
Amortization of
  stock-based
  compensation...........     --      --       --      --       --      2,290           --

Comprehensive loss
  Net loss ..............
  Unrealized loss on
   investments...........                                                              (58)

Comprehensive loss ......

Net loss.................     --      --       --      --       --         --           --
                           -----      ---   -----     ---  -------    --------      ------
Balances as of
  December 31, 1999......     --     $--   26,792     $27  $88,848    $(2,138)         (58)
                           =====     ===   ======     ===  =======    =======       ======
</TABLE>

<TABLE>
<CAPTION>

                               Notes
                             Receivable
                                From      Accumulated   Comprehensive
                            Stockholders    Deficit         Loss         Total
                            ------------  -----------   -------------   --------
<S>                        <C>             <C>          <C>             <C>
Balances,
  December 31, 1996......     $   (25)      $(1,237)                    $ 4,251
Issuance of preferred
  stock..................          --            --                       4,391
Issuance of common stock
  upon exercise of
  stock options..........        (195)           --                          49
Repurchase of common
  stock..................           6            --                          (4)
Issuance of warrants for
  preferred stock........          --            --                          26
Net loss.................          --        (5,909)                     (5,909)
                              -------       -------                     -------
Balances as of
  December 31, 1997......        (214)       (7,146)                      2,804
Issuance of preferred
  stock..................          --            --                       9,108
Issuance of common stock
  upon exercise of
  stock options..........        (568)           --                          52
Stock-based compensation
  to non-employees.......          --            --                         269
Issuance of common stock
  upon exercise of stock
  purchase rights........          --            --                           1
Repurchase of common
  stock..................          52            --                          12
Issuance of warrants for
  preferred stock........          --            --                          38
Repayment of notes
  receivable from
  stockholders...........           1            --                           1
Deferred compensation
  related to stock option
  grants.................          --            --                          --
Amortization of
  stock-based
  compensation...........          --            --                         273
Net loss.................          --        (8,799)                     (8,799)
                              -------       -------                     -------
Balances as of
  December 31, 1998......        (729)      (15,945)                      3,759
Stock-based compensation
  to non-employees.......          --            --                         798
Stock options granted to
  non-employees..........          --            --                          42
Issuance of common stock
  upon exercise of stock
  options................        (188)           --                          90
Issuance of common stock,
  net of issuance costs
  of $6,445..............          --            --                      62,556
Conversion of preferred
  stock..................          --            --                          --
Repurchase of common
  stock..................          28            --                          --
Issuance of warrants for
  preferred stock........          --            --                         368
Issuance of common stock
  upon exercise of
  warrants, net..........          --            --                          --
Repayments of notes
  receivable from
  stockholders...........         151            --                         151
Deferred compensation
  related to stock option
  grants.................          --            --                          --
Amortization of
  stock-based
  compensation...........          --            --                       2,290

Comprehensive loss
  Net loss...............          --            --     (10,876)
  Unrealized loss on
  investments............          --            --         (58)            (58)
                                                        -------
Comprehensive loss.......                               (10,934)
                                                        ========
Net loss.................          --       (10,876)                    (10,876)
                              -------       -------                     -------
Balances as of
  December 31, 1999......        (738)      (26,821)                     59,120
                              =======       =======                     =======
</TABLE>



          See accompanying notes to consolidated financial statements


                                       37
<PAGE>   38

                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (in thousands)


<TABLE>
<CAPTION>
                                                                YEARS ENDED DECEMBER 31,
                                                             ----------------------------
                                                                1999      1998      1997
                                                             --------   -------   -------

<S>                                                          <C>        <C>       <C>
Cash flows from operating activities:
  Net loss..........................................         $(10,876)  $(8,799)  $(5,909)
  Adjustments to reconcile net loss to net cash used
    in operating activities:
    Depreciation....................................              747       215       261
    Allowance for doubtful accounts.................              (76)      305        37
    Amortization of deferred stock-based
      compensation..................................            3,088       542        --
    Issuance of stock purchase rights...............               42        38        26
    Amortization of deferred interest...............              340        --        --
    Changes in operating assets and liabilities:
      Accounts receivable...........................           (1,110)   (2,329)     (758)
      Other receivables.............................                4       724      (764)
      Inventories...................................             (335)      175      (356)
      Prepaids and other current assets.............             (347)       --      (106)
      Accounts payable..............................              287      (318)    1,185
      Accrued compensation..........................            1,227       168        60
      Other accrued liabilities.....................            1,371       800       184
      Deferred revenue..............................             (295)    1,464        42
                                                             --------   -------   -------
        Net cash used in operating activities.......           (5,933)   (7,015)   (6,098)
                                                             --------   -------   -------
Cash flows from investing activities:
  Purchases of property and equipment...............             (708)     (605)     (492)
  Purchases of short-term investments...............          (37,933)   (1,927)       --
  Proceeds from sale of short-term investments......            1,927        --        --
  Purchases of long-term investments................           (7,731)                 --
  Other assets......................................              (96)      (59)     (113)
                                                             --------   -------   -------
        Net cash used in investing activities.......          (44,541)   (2,591)     (605)
                                                             --------   -------   -------
Cash flows from financing activities:
  Net proceeds from issuance of preferred stock.....               --     9,108     4,391
  Net proceeds from issuance of common stock........           62,646        53        49
  Proceeds from stockholders' note receivable.......              151         1        --
  Repurchase of common stock........................               --        12        (4)
  Borrowings under line of credit...................            2,651        --        --
  Repayments of line of credit......................             (761)       --        --
  Proceeds from note payable........................            5,000        --       287
  Payments of note payable..........................           (2,570)      (67)      (29)
  Proceeds from lease financing.....................              648       749       165
  Principal payments of capital lease obligations...             (287)     (116)      (13)
  Proceeds from other long-term liabilities.........               --        --        18
                                                             --------   -------   -------
        Net cash provided by financing activities...           67,478     9,740     4,864
                                                             --------   -------   -------
Net increase (decrease) in cash and cash
  equivalents.......................................           17,004       134    (1,839)
Cash and cash equivalents at beginning of year......            2,550     2,416     4,255
                                                             --------   -------   -------
Cash and cash equivalents at end of year............         $ 19,554   $ 2,550   $ 2,416
                                                             ========   =======   =======
Supplemental disclosures of cash flow information:
  Cash paid during year for interest................         $    550   $    48   $    --
                                                             ========   =======   =======
</TABLE>



          See accompanying notes to consolidated financial statements.


                                       38
<PAGE>   39

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                     (in thousands, except per share data)


1. ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

(a) Organization

     Packeteer, Inc. (the "Company") was incorporated on January 25, 1996, to
provide Internet application infrastructure systems designed to enable
businesses and service providers to ensure the quality of experience for
networked applications and application services. The Company's PacketWise
software, the foundation of the Company's PacketShaper and AppVantage systems,
integrates application discovery, analysis, control and reporting technologies
that enable proactive application performance and bandwidth management. The
Company markets and distributes its products via a worldwide network of VARs,
distributors, systems integrators and OEMs. The Company commenced principal
operations in 1997. The Company is headquartered in Cupertino, California, and
has wholly owned subsidiaries in Japan, Hong Kong and The Netherlands.

(b) Principles of Consolidation

     The accompanying consolidated financial statements include the financial
statements of the Company and its three wholly owned subsidiaries. All
significant intercompany balances and transactions have been eliminated in
consolidation.

(c) Use of Estimates

     The preparation of consolidated financial statements in conformity with
generally accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent liabilities at the date of the consolidated financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.

(d) Revenue Recognition

     We recognize product revenues, with provision made for estimated returns,
after the following events have occurred: the customer issues a noncancelable
purchase order; a product has been shipped to the customer; and collection of
the sales price is probable.

     Maintenance revenue on product sales is recognized ratably over the term of
the maintenance period.

     For software transactions entered into after January 1, 1998, the Company
adopted the American Institute of Certified Public Accountants' (AICPA)
Statement of Position (SOP) 97-2, "Software Revenue Recognition" as modified by
SOP 98-9, "Modification of SOP 97-2, Software Revenue Recognition, with Respect
to Certain Transactions." SOP 97-2 generally requires revenue earned on software
arrangements involving multiple-elements to be allocated to each element based
on its relative fair value. The fair value of the element must be based on
objective evidence that is specific to the vendor. If a vendor does not have
objective evidence of the fair value of all elements in a multiple-element
arrangement, all revenue from the arrangement must be deferred until such
evidence exists or until all elements have been delivered, unless the only
undelivered element is post-contract customer support, in which case, the entire
fee is recognized over the support period.

     Licensing revenues relate to OEM arrangements. We recognize OEM license
fees, which include post-contract customer support, when the software has been
shipped to the customer, the fees are fixed and determinable and there is
evidence of the fair value of the post-contract customer support. When
sufficient evidence of fair value of post-contract customer support is not



                                       39
<PAGE>   40

available, revenues are recognized ratably over the support period. We do not
have sufficient evidence of fair value of post-contract customer support for our
OEM license arrangements, and we recognize the revenues for these arrangements
over the support period.

     Service revenue is recognized as the services are performed. To date, these
amounts have not been significant.

(e) Cost of Revenues

     Cost of revenues consists primarily of costs of product sales. Costs of
licensing revenues, including product packaging, documentation and reproduction
have not been significant. The Company provides reserves for warranty costs
expected to be incurred.

(f) Cash and Cash Equivalents

     The Company considers all highly liquid investments with a maturity from
date of purchase of three months or less to be cash equivalents. Cash and cash
equivalents consist primarily of cash on deposit with banks, money market
instruments and investments in commercial paper. As of December 31, 1999 and
1998, cash equivalents total approximately $17,727 and $2,389, respectively.

(g) Investments

      Management determines the appropriate classification of investment
securities at the time of purchase and reevaluates such designation as of each
balance sheet date. As of December 31, 1999 and 1998, all investment securities
are designated as "available-for-sale." Available-for-sale securities are
carried at fair value based on quoted market prices, with the unrealized losses,
net of tax, reported as a separate component of stockholders' equity. The cost
of investments sold is determined on the specific identification method.
Short-term investments mature between three to twelve months from the date of
purchase. Short-term investments consist primarily of commercial paper,
corporate notes, corporate bonds and medium term notes. Long-term investments
have maturity dates after twelve months from the date of purchase and consist
primarily of corporate notes.

(h) Inventories

     Inventories are stated at the lower of cost (on a first-in, first-out
basis) or market. Inventory balances represent completed products
available-for-sale.

(i) Property and Equipment

     Property and equipment, including leasehold improvements and equipment
acquired under capital lease, are recorded at cost. Depreciation and
amortization are provided using a straight-line method over the shorter of the
estimated useful lives of the assets or the lease terms, generally one to four
years.

     The Company reviews property and equipment for impairment whenever events
or changes in circumstances indicate that the carrying amount of an asset may
not be recoverable. Recoverability of property and equipment is measured by
comparison of its carrying amount to future net cash flows the property and
equipment is expected to generate. If such assets are considered to be impaired,
the impairment to be recognized is measured by the amount by which the carrying
amount of the property and equipment exceeds its fair market value. To date, the
Company has made no adjustments to the carrying amount of its property and
equipment due to impairment.

(j) Advertising and Sales Promotion Costs

     Advertising and sales promotion costs are expensed as incurred.

(k) Research and Development Costs



                                       40
<PAGE>   41

     Development costs incurred in the research and development of new products
and enhancements to existing products are expensed as incurred until
technological feasibility in the form of a working model has been established.
To date, software developments have been completed concurrent with the
establishment of technological feasibility, and, accordingly, no costs have been
capitalized.


(l) Business and Concentrations of Credit Risk

     Financial instruments, which potentially subject the Company to
concentrations of credit risk, consist primarily of cash, cash equivalents,
investments and accounts receivable. The Company's cash, cash equivalents and
investments are maintained with highly accredited financial institutions. The
Company believes no significant concentration of credit risk exists with respect
to these financial instruments. Concentrations of credit risk with respect to
trade receivables are limited as the Company performs ongoing credit evaluations
of its customers. Based on management's evaluation of potential credit losses,
the Company believes its allowances for doubtful accounts are adequate.

     The Company's products, which are sold worldwide, are targeted to
organizations utilizing wide area networks. Accordingly, the Company's future
success depends upon the capital spending patterns of such customers and the
continued demand by such customers for the Company's products. The networking
industry is characterized by rapidly changing technology, evolving industry
standards, changes in end-user requirements and frequent new product
introductions and enhancements.

     The Company's continued success will depend upon its ability to enhance
existing products and to develop and introduce, on a timely basis, new products
and features that keep pace with technology developments and emerging industry
standards. Furthermore, as a result of its international sales, the Company's
operations are subject to risks of doing business abroad, including, but not
limited to, export duties, changes to import and export regulations, longer
payment cycles, and greater difficulty in collecting accounts receivable. While,
to date, these factors have not had an adverse material impact on the Company's
consolidated results of operations, there can be no assurance that there will
not be such an impact in the future.

(m) Income Taxes

     The Company uses the asset and liability method of accounting for income
taxes. Under this method, deferred tax assets and liabilities are recognized for
the future tax consequences attributable to differences between the financial
statement carrying amounts of existing assets and liabilities and their
respective tax bases. Deferred tax assets and liabilities are measured using
enacted tax rates expected to apply to taxable income in the years in which
those temporary differences are to be recovered or settled. The effect on
deferred tax assets and liabilities of a change in tax rates is recognized in
income in the period that includes the enactment date. The measurement of
deferred tax assets is reduced, if necessary, by a valuation allowance for any
tax benefits of which future realization is uncertain.

(n) Stock-Based Compensation

     For employee stock-based compensation plans, the Company uses the intrinsic
value-based method of accounting. Deferred compensation expense associated with
stock-based compensation is being amortized on an accelerated basis over the
vesting period of the individual award consistent with the method described in
Financial Accounting Standards Board (FASB) Interpretation No. 28, "Accounting
for Stock Appreciation Rights and Other Variable Stock Option or Award Plans".

     For non-employees, the Company computes the fair value of the stock based
compensation in accordance with SFAS 123 "Accounting for Stock Based
Compensation" and Emerging Issues Task Force (EITF) 96-18 "Accounting for Equity
Instruments that are Issued to Other Than Employees for Acquiring, or in
Conjunction with Selling, Goods or Services."



                                       41
<PAGE>   42

(o) Foreign Currency Transactions

     The Company's sales to international customers are U.S. dollar-denominated.
As a result, there are no foreign currency gains or losses related to these
transactions.

     The functional currency for the Company's foreign subsidiaries is the U.S.
dollar. Accordingly, the entities remeasure monetary assets and liabilities at
period-end exchange rates, while nonmonetary items are remeasured at historical
rates. Income and expense accounts are remeasured at the average rates in effect
during the year, except for depreciation which is remeasured at historical
rates.

     Remeasurement adjustments and transaction gains and losses are recognized
in income in the year of occurrence. To date, the effect of such amounts on net
income has not been material.

(p) Other Comprehensive Loss

     The Company has $58 of net unrealized loss on change in the fair value of
available for sale securities which is a component of other comprehensive
loss. The tax effect of the components of other comprehensive loss is not
significant.

(q) Net Loss Per Share

     Basic net loss per share is computed using the weighted-average number of
vested outstanding shares of common stock. Diluted net loss per share is
computed using the weighted-average number of shares of vested common stock
outstanding and, when dilutive, potential common shares. Potential common shares
include unvested common stock outstanding and potential common shares from
options and warrants to purchase common stock using the treasury stock method,
and convertible preferred stock on the as-if converted basis. All potential
shares have been excluded from the computation of diluted net loss per share for
all periods presented because the effect would be antidilutive. Pursuant to
SEC Staff Accounting Bulletin No. 98, common stock and convertible preferred
stock issued for nominal consideration, prior to the anticipated effective date
of the initial public offering, or IPO, are included in the calculation of basic
and diluted net loss per share as if they were outstanding for all periods
presented. To date, the Company has not had any issuances or grants for nominal
consideration. Diluted net loss per share does not include the effects of the
following potential common shares:

<TABLE>
<CAPTION>
                                                             YEARS ENDED DECEMBER 31,
                                                            --------------------------
                                                             1999      1998      1997
                                                            -------   ------    ------
<S>                                                          <C>       <C>         <C>
Shares issuable under stock options..................        2,727     1,073       900
Shares of unvested stock subject to repurchase.......          984     2,757     4,571
Shares issuable pursuant to warrants to purchase
  convertible preferred stock........................          143        58        42
Shares issuable related to convertible preferred
  stock on an "as-if-converted" basis................           --    12,391     9,838
</TABLE>

(s) Financial Instruments

     The carrying value of cash, cash equivalents, investments, accounts
receivable, accounts payable and accrued expenses approximates their estimated
fair value due to the relative short maturity of these instruments. The carrying
value of long-term debt and capital lease obligations approximates carrying
value based on the market interest rates available to the Company for debt of
similar risk and maturities.

(t) Recent Accounting Pronouncements

      In March 1998, the Accounting Standards Executive Committee (ACSEC)
issued SOP 98-1, "Accounting For the Costs of Computer Software Developed
Obtained for Internal Use." SOP 98-1 is effective for financial statements for
fiscal years beginning after December 15, 1998. SOP 98-1 establishes the
accounting for costs of software products developed or purchased for internal
use, including when such costs should be capitalized. The adoption of SOP 98-1
did not have any material impact on the Company's financial position, results
of operations or cash flows.

      In June 1998 and June 1999, the FASB issued SFAS Nos. 133 and 137,
respectively, both titled "Accounting for Derivative Instruments and Hedging
Activities". SFAS No. 137 amended the effective date of SFAS No. 133 to the
first


                                       42
<PAGE>   43

quarter of fiscal years beginning after June 15, 2000. SFAS No. 133 establishes
accounting and reporting standards for derivative instruments and hedging
activities. SFAS No. 133 requires that all derivatives be recognized at fair
value in the statements of financial position, and that the corresponding gains
or losses be reported either in the statement of operations or as a component of
comprehensive income, depending on the type of hedging relationship that exists.
Because the Company does not hold any derivative instruments and does not engage
in hedging activities, the adoption of SFAS No. 133 is not expected to have a
material impact on the Company's financial position, result of operations or
cash flows.

2. FINANCIAL INSTRUMENTS

     The following is a summary of available-for-sale debt and marketable equity
securities:

<TABLE>
<CAPTION>
                                                              AVAILABLE-FOR-SALE SECURITIES
                                                       -------------------------------------------
                                                                  GROSS       GROSS
                                                                UNREALIZED  UNREALIZED  ESTIMATED
                                                        COST      GAINS       LOSSES    FAIR VALUE
                                                       -------  ----------  ----------  ----------
                                                                     (in thousands)
<S>                                                    <C>        <C>         <C>        <C>
DECEMBER 31, 1999
- -----------------
Commercial paper, market auction preferreds,
  corporate bonds and notes and medium-term notes...   $63,389    $   2       $ (60)     $63,331
                                                       -------    -----       -----      -------
     Total debt securities..........................    63,389        2         (60)      63,331
U.S. marketable equity securities...................        --       --          --           --
                                                       -------    -----       -----      -------
                                                       $63,389    $   2       $ (60)     $63,331
                                                       =======    =====       =====      =======

Amounts included in cash and cash equivalents.......   $17,725    $   2       $  --      $17,727
Amounts included in short-term investments..........    37,933       --         (15)      37,918
Amounts included in long-term investments...........     7,731       --         (45)       7,686
                                                       -------    -----       -----      -------
                                                       $63,389    $   2       $ (60)     $63,331
                                                       =======    =====       =====      =======
DECEMBER 31, 1998
- -----------------
Commercial paper, market auction preferreds,
  corporate notes ..................................   $ 4,316    $  --       $  --      $ 4,316
                                                       -------    -----       -----      -------
     Total debt securities..........................     4,316    $  --       $  --      $ 4,316
U.S. marketable equity securities...................        --       --          --           --
                                                       -------    -----       -----      -------
                                                       $ 4,316    $  --       $  --      $ 4,316
                                                       =======    =====       =====      =======

Amounts included in cash and cash equivalents.......   $ 2,389    $  --       $  --      $ 2,389
Amounts included in short-term investments..........     1,927       --          --        1,927
Amounts included in long-term investments...........        --       --          --           --
                                                       -------    -----       -----      -------
                                                       $ 4,316    $  --       $  --      $ 4,316
                                                       =======    =====       =====      =======
</TABLE>

     Maturities of debt securities at market value at December 31, 1999 are as
follows (in thousands):

<TABLE>
<S>                                               <C>
Mature in one year or less......................  $55,645
Mature after one year through five years........    7,686
Mature after five years.........................       --
                                                  -------
                                                  $63,331
                                                  =======
</TABLE>


3. PROPERTY AND EQUIPMENT

     Property and equipment consisted of the following at December 31, 1999 and
1998:

<TABLE>
<CAPTION>
                                                             1999      1998
                                                            ------    ------
<S>                                                         <C>       <C>
Computers and equipment..................................   $  411    $  262
Equipment under capital lease............................    1,570     1,021
Furniture and fixtures...................................       50        39
Leasehold improvements...................................       17        17
                                                            ------    ------
                                                             2,048     1,339
Less accumulated depreciation and amortization...........    1,293       545
                                                            ------    ------
                                                            $  755    $  794
                                                            ======    ======
</TABLE>


     Accumulated depreciation and amortization includes amortization of
approximately $963 and $226 on equipment under capital lease as of December 31,
1999 and 1998, respectively.


4. LEASE COMMITMENTS

     The Company leases its facility and certain equipment under noncancelable
lease agreements, which expire at various dates through 2003. As of December 31,
1999, the future minimum rental payments under capital and operating leases are
as follows:

<TABLE>
<CAPTION>
YEARS ENDING                                                  CAPITAL     OPERATING
DECEMBER 31,                                                   LEASE        LEASE
- ------------                                                  -------     ---------
<S>                                                           <C>          <C>
   2000.....................................................  $  424       $1,063
   2001.....................................................     410        1,061
   2002.....................................................     298          935
   2003.....................................................      90           --
   2004.....................................................      --           --
                                                              ------       ------
Total future minimum lease payments.........................   1,222       $3,059
                                                                           ======
Less imputed interest.......................................     120
                                                              ------
Present value of future minimum lease payments
  under capital lease.......................................   1,102
Less current portion........................................     339
                                                              ------
Long-term portion...........................................  $  763
                                                              ======

</TABLE>


                                       43
<PAGE>   44

Rent expense was $722, $616, and $138 for the years ended December 31, 1999,
1998 and 1997, respectively.

5. REVOLVING LOAN AGREEMENT

     In January 1999, the Company entered into a revolving loan agreement with a
maximum line of credit of $3,000. Advances are limited to the lesser of the
maximum line or the borrowing base which is 80% of eligible receivables. The
outstanding principal balance accrues interest at a per annum rate equal to the
prime rate (which was 8.5% at December 31, 1999) and is secured by all present
and future collateral of the Company. The Company is required to maintain
certain financial covenants related to working capital and quarterly maximum net
loss amounts. As of December 31, 1999, the Company was in compliance with the
covenants and the outstanding balance on the line of credit was approximately
$1,900. Subsequent to December 31, 1999, the revolving loan agreement was
extended to January 2001 and amended, increasing the maximum line of credit to
$5,000.

6. NOTES PAYABLE

     In January 1999, the Company entered into a subordinated loan agreement
evidenced by a promissory note of $2,500, that was secured by the assets of the
Company. The note had a stated interest rate of 12.25% and was payable in 36
monthly installments of various amounts with the final installment due on
February 1, 2002. In connection with the note, the Company issued a warrant to
purchase 98 shares of Series D preferred stock at $3.58 per share. The warrant
was immediately exercisable and expires in January 2006. The Company estimated
the fair value of the warrant on the grant date to be $211 using the
Black-Scholes model with the following assumptions: risk-free interest rate of
4.5%; a contractual life of seven years; expected volatility of 50%; and no
dividends. The Company amortized the value of the warrant to interest expense
through August 1999, at which time the note was paid off and the remaining $164
balance of the unamortized discount was expensed.

     In May 1999, the Company entered into a loan and security agreement
evidenced by a secured promissory note of $2,500. The note has a stated interest
rate of 12.76% with interest-only payments due monthly. The final interest and
principal payment is due in May 2000. In connection with the note, the Company
issued a warrant to purchase 45 shares of Series D preferred stock at $6.25 per
share. The warrant is immediately exercisable and expires in May 2009. The
Company estimated the fair value of the warrant on the grant date to be $157
using the Black-Scholes model with the following assumptions: risk-free interest
rate of 5.4%; a term of 10 years; expected volatility of 50%; and no dividends.
The Company amortizes the value of the warrant to interest expense over the term
of the warrant. The unamortized balance of the warrant discount was $52 as of
December 31, 1999.

     As of December 31, 1999, the Company had $152 outstanding on a note
payable, which is secured by the Company's property and equipment. This balance
is payable in monthly installments of $7 each through June 1, 2001, at which
time a final balloon payment of $34 is due. The note has a stated interest rate
of 6.75%. The note has been discounted for warrants to purchase 42 shares of
Series B preferred stock at $1.00 per share. The warrant was immediately
exercisable and expires in June 2005. At the date of grant, the Company
estimates fair value of the warrant to be $26 using the Black-Scholes model with
the following assumptions: risk-free interest rate of 6%; a term of 8 years;
expected volatility of 50%; and no dividends. As of December 31, 1999 the
unamortized balance of the discount amounted to $13. (See Note 7(c))


                                       44
<PAGE>   45

7. STOCKHOLDERS' EQUITY

(a)  Preferred Stock

     As of December 31, 1998, the Company had 13,703 shares of preferred stock
authorized and had designated and issued preferred stock as follows:

<TABLE>
<CAPTION>
                                                      Outstanding Shares
                                                      ------------------
                                                         December 31,
                                        Authorized       ------------     Liquidation
                                          Shares            1998           Preference
                                        ----------          ----          -----------
<S>                                     <C>              <C>              <C>
Series A..............................     2,800            2,800            0.25
Series B..............................     4,864            4,822            1.00
Series C..............................     2,216            2,216            2.00
Series D..............................     3,823            2,553            3.94
                                          ------           ------
                                          13,703           12,391
                                          ======           ======
</TABLE>


     The rights, preferences, and privileges of the holders of Series A, B, C,
and D preferred stock were as follows:

     - The holders of Series A, B, C, and D preferred stock were entitled to
       receive dividends at the rate of $0.02, $0.08, $0.16, and $0.32 per
       share, respectively, per annum, payable when and as declared by the
       Company's Board of Directors, in preference and priority to any payments
       of dividends to holders of the Company's common stock. The dividend
       rights were not cumulative.

     - Shares of Series A, B, C, and D preferred stock had a liquidation
       preference of $0.25, $1.00, $2.00, and $3.94 per share, respectively,
       plus any declared but unpaid dividends.

     - Each holder of preferred stock had voting rights equal to common stock on
       an "as if converted" basis.

     - Each share of preferred stock was convertible at any time into one share
       of common stock at the option of the holder, subject to adjustment. The
       conditions for converting the shares from preferred to common included a
       public offering in which the gross proceeds exceeded $15,000 and the
       offering price equaled or exceeded $3.75 per share for Series A, B, and C
       preferred stock, and $7.39 per share for Series D preferred stock.

     In July 1999, in connection with the Company's initial public offering all
12,391 shares of preferred stock were converted into 12,391 shares of common
stock of the Company.

     In July 1999, the stockholders of the Company approved an amendment to the
Company's certificate of incorporation to reduce the number of authorized shares
of preferred stock to 5,000 shares. The 5,000 shares of authorized preferred
stock are undesignated and the Board of Directors has the authority to issue and
to determine the rights, preference and privileges thereof.

 (b) Common Stock

     As of December 31, 1998 the Company was authorized to issue 40,000 shares
of common stock. In May 1999, the Company's Board of Directors authorized the
Company to issue 85,000 shares, effective upon completion of an initial public
offering in July 1999.

     During 1997, the Company issued 1,940 shares of common stock upon the
exercise of stock options granted under the Company's 1996 Equity Incentive Plan
(the "1996 Plan"). Shares issued under the 1996 Plan are subject to repurchase
as described


                                       45
<PAGE>   46

below under Note (5)(d). Of the 1,940 shares issued upon the exercise of stock
options in 1997, 1,840 shares were issued in conjunction with full recourse,
promissory notes secured by the shares. Of the total purchase price, 10% was
paid at the time of purchase. The remaining principal, which bears interest at
5.6% to 6.8%, is due in annual installments, plus interest, through 2002.

     In October 1997, the Company repurchased 318 shares of common stock at
$0.10 to $0.25 per share from terminated employees in exchange for $4 in cash
and cancellation of $6 in promissory notes.

     During 1998, the Company issued 1,048 shares of common stock upon the
exercise of stock options and stock purchase rights. Of the 1,048 shares issued
upon the exercise of stock options, 1,042 shares were issued in conjunction with
full recourse, promissory notes secured by the shares. Of the total purchase
price, 10% was paid at the time of purchase. The remaining principal, which
bears interest at 5.5% to 6.5%, is due in annual installments, plus interest,
through 2003.

     During 1998, the Company repurchased 306 shares of common stock at $0.10 to
$0.50 per share from terminated employees in exchange for $12 in cash and
cancellation of $52 in promissory notes.

     During 1999, the Company issued 181 shares of common stock upon the
exercise of stock options and warrants. Of the shares issued upon the exercise
of stock options, 50 shares were issued in conjunction with full recourse,
promissory notes secured by the shares. Of the total purchase price, 10% was
paid at the time of purchase. The remaining principal, which bears interest at
4.6% to 5.4%, is due in annual installments, plus interest, through 2004.

     During 1999, the Company repurchased 103 shares of common stock at $0.10 to
$3.50 per share from terminated employees in exchange for cancellation of $28 in
promissory notes.

     In July 1999, the Company raised $62.6 million, net of issuance costs, from
an initial public offering of 4,600 shares of common stock.

(c)  Warrants

     In June 1997, the Company issued a warrant in connection with a leasing
agreement to purchase 42 shares of Series B preferred stock at $1.00 per share.
At the date of grant, the Company estimated the fair value of the warrant to be
$26 using the Black-Scholes model with the following assumptions: risk free
interest rate of 6%; an contractual life of eight years; expected volatility of
50%; and no dividends.

     In 1998, the Company issued a warrant in connection with a leasing
agreement to purchase 16 shares of Series D preferred stock at $3.94 per share.
At the date of grant, the Company estimated the fair value of the warrant to be
$38 using the Black-Scholes model with the following assumptions: risk free
interest rate of 5%; an contractual life of eight years; expected volatility of
50%; and no dividends.

     In October and November of 1999, a warrant holder elected to exercise
warrants to purchase 58 shares of common stock. As a result of a net exercise,
the Company issued 56 shares of common stock to the warrant holder.

     During 1999, in connection with the loan agreements the Company issued
warrants to purchase 143 shares of Series D preferred stock at $3.58 and $6.25
per share. (see Note 6).

     In July 1999, in connection with the Company's initial public offering the
warrants to purchase preferred stock converted to warrants to purchase common
stock.

As of December 31, 1999 and 1998 the weighted average exercise price of warrants
was $4.42 and $1.81, respectively. At December 31, 1999, the following warrants
were outstanding:


                                       46
<PAGE>   47
<TABLE>
<CAPTION>
                        Shares of             Aggregate           Expiration
                       Common Stock         Exercise Price           Dates
                       ------------         --------------       ------------
<S>                    <C>                  <C>                  <C>
    Common Stock           98                    $350            January 2007
    Common Stock           45                    $281              May 2007
</TABLE>

(d) Stock and Option Plans

1999 Stock Incentive Plan

     The 1999 Stock Incentive Plan (the "1999 Plan") is intended to serve as the
successor program to our 1996 Equity Incentive Plan (the "1996 Plan"). In May
1999, the Company's Board of Directors approved the 1999 Plan, which became
effective on July 27, 1999, under which 900 shares have been reserved for
issuance. Previously, 515 shares were authorized under the 1996 Plan. In
addition, any shares not issued under the 1996 Plan will also be available for
grant under the 1999 Plan. The number of shares reserved under the 1999 Plan
will automatically increase annually beginning on January 1, 2000 by the lesser
of 3,000 shares or 5% of the total number of shares of common stock outstanding.
Under the 1999 Plan, eligible individuals may be granted options to purchase
common shares or may be issued shares of common stock directly. The 1999 Plan is
administered by the Board of Directors, which sets the terms and conditions of
the options. Non statutory stock options and incentive stock options are
exercisable at prices not less than 85% and 100%, respectively, of the fair
value on the date of grant. The options become 25% vested one year after the
date of grant with 1/48 per month vesting thereafter and expire at the end of 10
years from date of grant or sooner if terminated by the Board of Directors. The
options may include a provision whereby the option holder may elect at any time
to exercise the option prior to the full vesting of the option. Unvested shares
so purchased shall be subject to a repurchase right by the Company at the
original purchase price. Such right shall lapse at a rate equivalent to the
vesting period of the original option. As of December 31, 1999, 984 shares were
subject to repurchase.

A summary of stock option activity under the 1996 and 1999 Plans follows:

<TABLE>
<CAPTION>
                                                                      OPTIONS OUTSTANDING
                                                                 -----------------------------
                                                    AVAILABLE    NUMBER OF    WEIGHTED-AVERAGE
                                                    FOR GRANT     SHARES       EXERCISE PRICE
                                                    ---------    ---------    ----------------
<S>                                                 <C>          <C>          <C>
Balances as of December 31, 1996..................    1,137          704           $0.10
  Shares made available for grant.................      953           --              --
  Repurchased.....................................      318           --              --
  Granted.........................................   (2,480)       2,480            0.17
  Exercised.......................................       --       (1,940)           0.13
  Cancelled.......................................      344         (344)           0.16
                                                     ------       ------
Balances as of December 31, 1997..................      272          900            0.22
  Shares made available for grant.................    2,025           --              --
  Repurchased.....................................      306           --              --
  Granted.........................................   (1,300)       1,300            1.96
  Exercised.......................................       --       (1,042)           0.59
  Cancelled........................................      85          (85)           1.02
                                                     ------       ------
Balances as of December 31, 1998..................    1,388        1,073            1.90
  Shares made available for grant.................    1,415           --              --
  Repurchased.....................................      103           --              --
  Granted.........................................   (1,787)       1,787            7.74
  Exercised.......................................       --          (97)           2.75
  Cancelled.......................................       36          (36)           3.19
                                                     ------       ------
Balances as of December 31, 1999..................    1,155        2,727           $5.68
                                                     ======       ======
</TABLE>

     The weighted-average exercise price of stock options outstanding was $5.68
and $1.90 as of December 31, 1999 and 1998, respectively. The weighted average
purchase price of unvested stock was $0.55 and $0.34 as of December 31, 1999 and
1998, respectively.


The following table summarizes information about stock options outstanding under
the 1996 and 1999 Plans as of December 31, 1999:



                                       47
<PAGE>   48
<TABLE>
<CAPTION>
                                                  OPTIONS OUTSTANDING               OPTIONS EXERCISABLE
                                           -----------------------------------     ---------------------
                                                          WEIGHTED
                                                           AVERAGE    WEIGHTED                  WEIGHTED
                  RANGE OF                    NUMBER      REMAINING    AVERAGE        NUMBER     AVERAGE
                  EXERCISE                 OUTSTANDING   CONTRACTUAL  EXERCISE     EXERCISABLE  EXERCISE
                   PRICES                  AT 12/31/99   LIFE (YEARS)   PRICE      AT 12/31/99     PRICE
                  --------                 -----------  ------------  --------     -----------  --------
                <S>                         <C>          <C>          <C>           <C>         <C>
                $ 0.10-$ 2.50                   651         7.95       $ 1.04            651      $ 1.04
                    $ 3.50                    1,586         9.02       $ 3.50          1,586      $ 3.50
                $ 6.25-$15.00                   335         9.44       $ 8.80            335      $ 8.80
                $29.88-$57.00                   155         9.79       $40.46             --      $40.46
                                              -----         ----       ------          -----      ------
                        Total                 2,727         8.86       $ 5.68          2,572      $ 3.57
                                              =====                                    =====
</TABLE>


     As of December 31, 1999, 482 options with a weighted-average exercise price
of $1.88 were vested.

1999 Employee Stock Purchase Plan

     In May 1999, the Company's Board of Directors adopted the 1999 Employee
Stock Purchase Plan (the "ESPP"). The ESPP became effective July 27, 1999. A
total of 500 shares has been reserved for issuance under this plan. The ESPP
permits participants to purchase common stock through payroll deductions of up
to 15% of an employee's compensation, including commissions, overtime, bonuses
and other incentive compensation. The purchase price per share will be equal to
85% of the fair market value per share on the participant's entry date into the
offering period or, if lower, 85% of the fair value per share on the semi-annual
purchase date. No shares of common stock were issued under this ESPP during
1999.

STOCK-BASED COMPENSATION

     As permitted under Statement of Financial Accounting Standards No. 123
(SFAS 123), "Accounting for Stock-Based Compensation," the Company has elected
to continue to follow Accounting Principles Board Opinion No. 25 (APB 25),
"Accounting for Stock Issued to Employees" in accounting for stock-based awards
to employees. Under APB 25, the Company generally recognizes no compensation
expense with respect to such awards.

     Pro forma information regarding the net income (loss) and net income
(loss) per share is required by SFAS 123 for awards granted or modified after
December 31, 1994 as if the Company had accounted for its stock-based awards to
employees under the fair value method of SFAS 123. The fair value of the
Company's stock-based awards to employees was estimated using a Black-Scholes
option pricing model.

     The fair value of the Company's stock-based awards was estimated assuming
no expected dividends and the following weighted-average assumptions:

<TABLE>
<CAPTION>
                                                              OPTIONS                ESPP
                                                   -----------------------------    ------
                                                    1999       1998       1997       1999
                                                   ------     ------     ------     ------
<S>                                                 <C>        <C>        <C>       <C>
          Expected Life (years)..................       4          4          4       .50
          Expected volatility....................     110%        50%        50%      110%
          Risk-free interest rates...............     4.5%       4.5%       6.5%      4.5%
</TABLE>

     For pro forma purposes, the estimated fair value of the Company's stock-
based awards is amortized over the award's vesting period (for options) and the
six month purchase period (for stock purchases under the ESPP). The
Company's pro forma information follows:

<TABLE>
<CAPTION>
                                                                       1999        1998        1997
                                                                    ---------    --------    --------
<S>                                                                 <C>          <C>         <C>
    Net loss--Historical....................................        $(10,876)    $(8,799)    $(5,909)
    Net loss--Pro forma.....................................        $(13,986)    $(8,854)    $(5,934)
    Basic and Diluted net loss per share-Historical.........        $  (0.71)    $ (1.54)    $ (1.82)
    Basic and diluted net loss per share-Pro forma..........        $  (0.91)    $ (1.54)    $ (1.82)
</TABLE>

     Calculated under SFAS 123, the weighted-average fair value of the options
granted during 1999, 1998 and 1997 was $4.64, $0.90 and $0.04 per share,
respectively. The weighted average fair value of employee stock purchase rights
granted under the ESPP Plan during 1999 was $18.66 per share.

                                       48
<PAGE>   49

     In connection with options granted in fiscal years 1999 and 1998, the
Company has recorded deferred stock-based compensation of $3,914 and $787,
respectively, representing the difference between the exercise price and the
fair value of the Company's common stock at the date of grant. The amount is
being amortized over the vesting period for the individual options. Amortization
of stock-based compensation of $2,290 and $273 was recognized during the years
ended December 31, 1999 and 1998, respectively.


8. INCOME TAXES

     The differences between the income tax expense (benefit) computed at the
federal statutory rate of 34% and the Company's actual income tax provision for
all periods presented primarily related to net operating losses not benefited as
follows:

<TABLE>
<CAPTION>
                                                             1999     1998
                                                             ----     ----
<S>                                                          <C>      <C>

U.S. federal statutory rate (benefit)....................... (34)%    (34)%
Net losses without benefits.................................  34%      34%
                                                             ----     ----
                 Total tax expense (benefit)................   --       --
                                                             ====     ====
</TABLE>
The tax effects of temporary differences that give rise to significant portions
of the deferred tax assets and liabilities at December 31, 1999 and 1998, are
presented below:

<TABLE>
<CAPTION>
                                                               1999       1998
                                                              -------    -------
<S>                                                           <C>        <C>
Deferred tax assets:
  Various accruals and reserves not deductible for tax
     purposes...............................................  $   507    $   264
  Property and equipment....................................       --         97
  Net operating loss carryover..............................    9,308      5,759
  Research credit carryforwards.............................      784        255
  Capitalized start-up expenditures.........................      216        315
  Deferred stock-based compensation.........................      675        215
                                                              -------    -------
    Total deferred tax assets...............................   11,490      6,905
Valuation allowance.........................................  (11,367)    (6,905)
Deferred tax liabilities:
  Property and equipment....................................     (123)        --
                                                              -------    -------
     Total deferred tax liabilities.........................     (123)        --
                                                              -------    -------
Net deferred tax assets.....................................  $    --    $    --
                                                              =======    =======
</TABLE>

     The net change in the valuation allowance for the year ended December 31,
1999 and 1998 was an increase of $4,462 and $3,706, respectively.

     As of December 31, 1999, the Company has net operating loss carryforwards
for federal and California state income tax purposes of approximately $23,588
and $14,565, respectively. In addition, the Company had federal and state
research credit carryforwards of approximately $440 and $344, respectively. The
Company's federal net operating loss and research credit carryforwards will
expire in the years 2011 through 2019, if not utilized. The Company's state net
operating loss carryforwards will expire in the year 2004. The state research


                                       49
<PAGE>   50

credit can be carried forward indefinitely.

     Federal and state tax laws impose substantial restrictions on the
utilization of net operating loss and tax credit carryforwards in the event of
an "ownership change" as defined in Internal Revenue Code Section 382. The
Company has not yet determined whether an ownership change has occurred.

9. 401(k) PLAN

     In 1997, the Company adopted a 401(k) plan (the "401(k)"). Participation in
the 401(k) is available to all employees. Entry date to the 401(k) is the first
day of each month. Each participant may elect to contribute an amount up to 25%
of his or her annual base salary plus commission and bonus, but not to exceed
the statutory limit as prescribed by the Internal Revenue Code. The Company may
make discretionary contributions to the 401(k). To date, no contributions have
been made by the Company.

10. SEGMENT REPORTING

     The Company has adopted the provisions of SFAS No. 131, "Disclosures about
Segments of an Enterprise and Related Information." The Company's chief
operating decision maker is considered to be the Company's CEO. The CEO reviews
financial information presented on a consolidated basis substantially similar to
the consolidated financial statements. Therefore, the Company has concluded that
it operates in one segment and accordingly has provided only the required
enterprise-wide disclosures.

     The Company operates in the United States and internationally and derives
its revenue from the sale of products and software licenses. The Company's
sales, marketing, and development efforts have been focused on the PacketShaper
family of products and PacketWise software. In 1999, no one customer accounted
for more than 10% of total net revenues. In 1998, sales to Macnica accounted
for 11.9% of total net revenues. Sales outside of North America accounted for
54.9%, 54.7%, and 59.9% of the Company's total revenues in 1999, 1998, and 1997
respectively.

Geographic Information

<TABLE>
<CAPTION>
                                                YEARS ENDED DECEMBER 31,
                                              -----------------------------
                                               1999       1998       1997
                                              ------     ------     ------
<S>                                           <C>        <C>        <C>
Total net revenues:
  North America............................   $8,310     $3,273     $  566
  Asia Pacific.............................    4,795      2,238        617
  Europe and rest of world.................    5,336      1,719        230
                                             -------     ------     ------
     Total net revenues....................  $18,441     $7,230     $1,413
                                             =======     ======     ======
</TABLE>


     Total net revenues reflects the destination of the product shipped.

     Long-lived assets are primarily located in North America. Long-lived assets
located outside North America are insignificant.



                          INDEPENDENT AUDITORS' REPORT

To the Board of Directors and Stockholders of Packeteer, Inc.:

     We have audited the accompanying consolidated balance sheets of Packeteer,
Inc. and subsidiaries as of December 31, 1999 and 1998, and the related
consolidated statements of operations, stockholders' equity, and cash flows for
each of the years in the three-year period ended December 31, 1999. In
connection with our audits of the consolidated financial statements, we have
also audited the financial statement schedule listed in the index at Item
14(a)2. These consolidated financial statements and financial statement schedule
are the responsibility of the Company's management. Our responsibility is to
express an opinion on these consolidated financial


                                       50
<PAGE>   51

statements based on our audits.

     We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the consolidated financial statements are
free of material misstatement. An audit includes examining, on a test basis,
evidence supporting the amounts and disclosures in the consolidated financial
statements. An audit also includes assessing the accounting principles used and
significant estimates made by management, as well as evaluating the overall
financial statement presentation. We believe that our audits provide a
reasonable basis for our opinion.

     In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of Packeteer,
Inc. and subsidiaries as of December 31, 1999 and 1998, and the results of their
operations and their cash flows for each of the years in the three-year period
ended December 31, 1999, in conformity with generally accepted accounting
principles. Also in our opinion, the related financial statement schedule, when
considered in relation to the basic consolidated financial statements taken as a
whole, presents fairly, in all material respects, the information set forth
therein.

                                      /s/ KPMG LLP

Mountain View, California
January 21, 2000


ITEM 9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
         FINANCIAL DISCLOSURE

     Not Applicable.

                                    PART III

ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

     Pursuant to General Instruction G to Form 10-K, the information required by
Items 10, 11, 12, and 13 of Part III is incorporated by reference to our
definitive Proxy Statement with respect to our 2000 Annual Meeting of
Stockholders to be filed pursuant to Regulation 14A with the Securities and
Exchange Commission not later than 120 days after December 31, 1999.

                                     PART IV

ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K

(a)(1) Financial Statements

                    See the Consolidated Statements beginning on page 35 of this
Form 10-K.

   (2) Financial Statement Schedule

            Schedule II - Valuation and Qualifying Accounts and Reserves (see
                          page 53 of this Form 10-K).

   (3) Exhibits

            See the Exhibit Index at page 53 of this Form 10-K.

(b) No reports on Form 8-K were filed during the last quarter of the fiscal year
ended December 31, 1999.

(C) See the Exhibit Index at page 53 of this Form 10-K.

(d) See the Consolidated Financial Statements beginning on page 35 and Financial
Statement Schedule at page 53 of this Form 10-K.


                                       51
<PAGE>   52
                                   SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, as amended, the
Registrant has duly caused this Annual Report on Form 10-K to be signed on its
behalf by the undersigned, thereunto duly authorized, in the City of Cupertino,
State of California, on this 23rd day of March, 2000.


                                      PACKETEER, INC.

                                      By: /s/ DAVID YNTEMA
                                          -------------------------------------
                                          David Yntema
                                          Chief Financial Officer and Secretary
                                          Date: March 23, 2000


                                POWER OF ATTORNEY


     KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature
appears below hereby constitutes and appoints, jointly and severally, Craig
Elliott and David Yntema, and each of them acting individual, as his
attorney-in-fact, each with full power of substitution and resubstitution, for
him or her in any and all capacities, to sign any and all amendments to this
Annual Report on Form 10-K (including post-effective amendments), and to file
the same, with exhibits thereto and other documents in connection therewith,
with the Securities and Exchange Commission, granting unto said
attorneys-in-fact full power and authority to do and perform each and every act
and thing requisite and necessary to be done in connection therewith as fully to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact, or their substitute or substitutes,
may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this Report
has been signed below by the following persons on behalf of the Registrant and
in the capacities and on the dates indicated.


<TABLE>
<CAPTION>
              NAME                                  TITLE                        DATE
              ----                                  -----                        ----
<S>                                   <C>                                    <C>
         /s/ CRAIG ELLIOTT            President and Chief Executive         March 23, 2000
- ----------------------------------    Officer (Principal Executive
          Craig Elliott               Officer) and Director

         /s/ DAVID YNTEMA             Chief Financial Officer and           March 23, 2000
- ----------------------------------    Secretary (Principal Financial and
           David Yntema               Accounting Officer)

         /s/ ROBERT PACKER            Chief Technical Officer and           March 23, 2000
- ----------------------------------    Director
          Robert Packer

         /s/ BRETT GALLOWAY           Vice President, Engineering,          March 23, 2000
- ----------------------------------    Chief Operating Officer
          Brett Galloway              and Director

                                      Director
- ----------------------------------
         Steven Campbell

         /s/ JOSEPH GRAZIANO          Director                              March 23, 2000
- -----------------------------------
         Joseph Graziano

         /s/ PETER MORRIS             Director                              March 23, 2000
- -----------------------------------
           Peter Morris

         /s/ WILLIAM STENSRUD         Director                              March 23, 2000
- -----------------------------------
         William Stensrud

</TABLE>



                                       52
<PAGE>   53

                                     SCHEDULE II
                      VALUATION AND QUALIFYING ACCOUNTS AND RESERVES
                    For the years ended December 31, 1997, 1998, and 1999
                                 (in thousands)


<TABLE>
<CAPTION>
                                                          ADDITIONS
                                             BALANCE AT   CHARGED TO                BALANCE AT
                                             BEGINNING    COSTS AND                   END OF
                                             OF PERIOD     EXPENSES    DEDUCTIONS     PERIOD
                                             ----------   ----------   ----------   ----------
<S>                                          <C>          <C>          <C>          <C>
1999
  Accounts Receivable Allowances...........     293            28         (104)         217
  Warranty Reserve.........................      76           515         (278)         313
1998
  Accounts Receivable Allowances...........      37           305          (49)         293
  Warranty Reserve.........................      32            85          (41)          76
1997
  Accounts Receivable Allowances...........     $--           $37          $--          $37
  Warranty Reserve.........................      --            32           --           32

</TABLE>


                                 EXHIBITS INDEX
<TABLE>
<CAPTION>
EXHIBIT
 NUMBER                           Description
- --------                          -------------
<S>        <C>
 3.1(2)    Registrant's Amended and Restated Certificate of
           Incorporation.
 3.2(2)    Registrant's Amended and Restated Bylaws.
 4.1(2)    Form of Registrant's Specimen Common Stock Certificate.
10.1(2)    Lease Agreement between Packeteer and Eldon R. Hoffman dated
           August 25, 1997.
10.2(2)    OEM Agreement between Packeteer and ADC Telecommunications,
           Inc., dated December 17, 1998.
10.3(2)    Reseller Agreement between Packeteer and Alcatel Business
           Systems, dated May 7, 1999.
10.4(2)    Loan and Security Agreement between Packeteer and Silicon
           Valley Bank, dated January 1, 1999.
10.5(2)    Export-Import Bank Loan and Security Agreement between
           Packeteer and Silicon Valley Bank, dated January 19, 1999.
10.6(2)    Subordinated Loan and Security Agreement between Packeteer
           and Comdisco, Inc., dated January 21, 1999.
10.7(2)    Master Lease Agreement between Packeteer and Comdisco, Inc.,
           dated June 3, 1997.
10.8(2)    Registrant's 1996 Equity Incentive Plan.
10.9(2)    Registrant's 1999 Stock Incentive Plan.
10.10(2)   Registrant's 1999 Employee Stock Purchase Plan.
10.11(2)   Form of Indemnity Agreement entered into by Registrant with each of
           its executive officers and directors.
10.12(2)   Loan and Security Agreement between Packeteer and MMC/GATX
           Partnership No. 1 dated May 20, 1999.
10.13(2)   OEM Agreement between Packeteer and Lucent Technologies,
           Inc. dated June 25, 1999.
10.14(2)   OEM Agreement between Packeteer and Adtran, Inc. dated June
           29, 1999.
10.15(1)   Amendment dated February 2, 2000 to the Loan and Security Agreement and
           the Export-Import Bank Loan and security agreement between Packeteer and
           Silicon Valley Bank.
10.16(1)   Master Lease Agreement between Packeteer and Pentech Financial Services,
           Inc.,  dated November 1, 1999.
10.17(1)   Addendum to Lease Agreement between Packeteer and Eldon R. Hoffman
           dated November 1, 1999.

</TABLE>

                                       53
<PAGE>   54
<TABLE>

<S>        <C>
21.1(2)    Subsidiaries of Packeteer
23.1(1)    Consent of KPMG LLP, Independent Accountants
24.1       Power of Attorney (see page 52)
27.1(1)    Financial Data Schedules
</TABLE>


- -------------------------

(1)   Filed herewith.

(2)   Incorporated by reference from Packeteer's Registration Statement on Form
      S-1 (Reg. No. 79333-79077), as amended.




                                       54

<PAGE>   1
                                                                   EXHIBIT 10.15

                          LOAN MODIFICATION AGREEMENT

        This Loan Modification Agreement is entered into as of February 2, 2000,
and effective as of January 10, 2000, by and between Packeteer, Inc.
("Borrower") and Silicon Valley Bank ("Bank").

1.      DESCRIPTION OF EXISTING INDEBTEDNESS: Among other indebtedness which may
be owing by Borrower to Bank, Borrower is indebted to Bank pursuant to, among
other documents, a Loan and Security Agreement, dated January 19, 1999, as may
be amended from time to time, (the "Domestic Loan Agreement") and an
Export-Import Bank Loan and Security Agreement, dated January 19, 1999, as may
be amended from time to time, (the "Exim Loan Agreement"). The Domestic Loan
Agreement provided for, among other things, a Committed Revolving Line in the
original principal amount of One Million Five Hundred Thousand Dollars
($1,500,000) and the Exim Loan Agreement provided for, among other things, an
Exim Committed Line in the original principal amount of One Million Five Hundred
Thousand Dollars ($1,500,000). In connection with the Exim Loan Agreement,
Borrower will execute concurrently herewith, a Borrower Agreement. Defined terms
used but not otherwise defined herein shall have the same meanings as in the
Loan Agreements.

Hereinafter, all indebtedness owing by Borrower to Bank shall be referred to as
the "Indebtedness."

2.      DESCRIPTION OF COLLATERAL AND GUARANTIES. Repayment of the Indebtedness
is secured by the Collateral as described in the Loan Agreement and an
Intellectual Property Security Agreement dated January 19, 1999. Additionally,
repayment of the Exim Committed Line is guaranteed by the Export Import Bank of
the United States ("EXIM").

Hereinafter, the above-described security documents and guaranties, together
with all other documents securing repayment of the Indebtedness shall be
referred to as the "Security Documents". Hereinafter, the Security Documents,
together with all other documents evidencing or securing the Indebtedness shall
be referred to as the "Existing Loan Documents".

3.      DESCRIPTION OF CHANGE IN TERMS.

        A.   Modification(s) to Domestic Loan Agreement.

             1.   Sub-letter (a) of Section 2.1.1 entitled "Revolving Advances"
                  is hereby amended to read:

                  Bank will make Advances not exceeding the lesser of (A) the
                  Committed Revolving Line minus the Cash Management Services
                  Sublimit or (B) the Borrowing Base. Amounts borrowed under
                  this Section may be repaid and reborrowed during the term of
                  this Agreement.

             2.   The following Section is hereby incorporated:

                  2.1.2 CASH MANAGEMENT SERVICES SUBLIMIT.

                  Borrower may use up to $100,000 for Bank's Cash Management
                  Services, which may include merchant services, direct deposit
                  of payroll, business credit card, and check cashing services
                  identified in the Cash Management Services Agreement (the
                  "Cash Management Services"). All amounts Bank pays for any
                  Cash Management Services will be treated as an Advance under
                  the Committed Revolving Line.


<PAGE>   2

             3.   Section 2.2 entitled "Overadvances" is hereby amended to read:

                  If Borrower's Obligations under Section 2.1.1 exceed the
                  lesser of either (I) the Committed Revolving Line minus the
                  Cash Management Services Sublimit or (ii) the Borrowing Base,
                  Borrower must immediately pay Bank the excess.

             4.   Sub-paragraph (i) of sub-letter (a) of Section 6.2 entitled
                  "Financial Statements, Reports, Certificates" is hereby
                  amended to read:

                  (i)  as soon as available, but not later than five (5) days of
                       filing, with the Securities and Exchange Commission
                       ("SEC"), copies of all statements, reports and notices
                       sent or made available generally by Borrower to its
                       shareholders, or to any holders of subordinated debt and
                       all reports on Form 10Q, 10-K and 8-K.

             5.   Sub-letter (c) of Section 6.2 entitled "Financial Statements,
                  Reports, Certificates" is hereby amended to read:

                  Borrower shall deliver to Bank, as soon as available, but in
                  no event later than five (5) days after filing its 10Q report
                  with SEC, a Compliance Certificate signed by a Responsible
                  Officer.

             6.   Sub-letter (d) of Section 6.2 entitled "Financial Statements,
                  Reports, Certificates" is hereby amended in part to provide
                  that the Collateral audits will be conducted no more often
                  than once per year, provided the aggregate Obligations owing
                  from Borrower to Bank exceed $3,000,000.

             7.   Section 6.7 entitled "Financial Covenants" is hereby amended
                  to read:

                  Borrower will maintain as of the last day of each fiscal
                  quarter:

                  (i)  QUICK RATIO (ADJUSTED). A ratio of Quick Assets to
                       Current Liabilities minus Deferred Maintenance Revenue of
                       at least 2.00 to 1.00

                  (ii) MAXIMUM LOSSES. Borrower may suffer losses, provided such
                       losses do not exceed $12,000,000 in aggregate for the
                       period of October 1, 1999 through September 30, 2000,
                       provided, that no loss in any single quarter to exceed
                       $4,000,000.

             8.   The following terms are hereby amended and/or added to Section
                  13.1 entitled "Definitions":

                  "CASH MANAGEMENT SERVICES" are defined in Section 2.1.2.

                  "COMMITTED REVOLVING LINE" is an Advance of up to $2,500,000.

                  "REVOLVING MATURITY DATE" is January 9, 2001.


<PAGE>   3

        B.   Modification(s) to Exim Loan Agreement.

             1.   Sub-letter (a)of Section 2.1.1 entitled "Revolving Advances"
                  is hereby amended in part to provide that Borrowing Base shall
                  now mean an amount equal to the sum of (i) eighty percent
                  (80%) of Exim Eligible Foreign Accounts plus (ii) fifty
                  percent (50%) of Exim Eligible Foreign Inventory.

             2.   Sub-paragraph (i) of sub-letter (a) of Section 6.2 entitled
                  "Financial Statements, Reports, Certificates" is hereby
                  amended to read:

                       (i) as soon as available, but not later than five (5)
                  days of filing, with the Securities and Exchange Commission
                  ("SEC"), copies of all statements, reports and notices sent or
                  made available generally by Borrower to its shareholders, or
                  to any holders of subordinated debt and all reports on Form
                  10Q, 10-K and 8-K.

             3.   Sub-letter (b) of Section 6.2 entitled "Financial Statements,
                  Reports, Certificates" is hereby amended to read:

                  Borrower shall deliver to Bank, as soon as available, but in
                  no event later than five (5) days after filing its 10Q report
                  with SEC, a Compliance Certificate signed by a Responsible
                  Officer.

             4.   The first sentence of sub-letter (c) of Section 6.2 entitled
                  "Financial Statements, Reports, Certificates" is hereby
                  amended to read:

                       At the time of each request for Advance, Borrower will
                  deliver to Bank a Borrowing Base Certificate current within
                  the past five (5) Business Days and a copy of the Export Order
                  against which Borrower is requesting the Advance, together
                  with aged listings of accounts receivable and accounts
                  payable.

             5.   Section 6.10 entitled "Financial Covenants" is hereby amended
                  to read:

                  Borrower will maintain as of the last day of each fiscal
                  quarter:

                  (i)  QUICK RATIO (ADJUSTED). A ratio of Quick Assets to
                       Current Liabilities minus Deferred Maintenance Revenue of
                       at least 2.00 to 1.00

                  (II) MAXIMUM LOSSES. Borrower may suffer losses, provided such
                       losses do not exceed $12,000,000 in aggregate for the
                       period of October 1, 1999 through September 30, 2000,
                       provided, that no loss in any single quarter to exceed
                       $4,000,000.

             6.   The following terms are hereby amended and/or added to Section
                  13.1 entitled "Definitions":

                  "EXIM COMMITTED LINE" is an Advance of up to $2,500,000.

                  "EXIM MATURITY DATE" is January 9, 2001.

4.      CONSISTENT CHANGES. The Existing Loan Documents are hereby amended
wherever necessary to reflect the changes described above.

5.      PAYMENT OF FEES. Borrower shall pay to Bank a fee in the amount of Six
Thousand Two Hundred Fifty Dollars ($6,250) for the Committed Revolving Line
(the "Domestic Loan Fee") plus a fee in the


<PAGE>   4

amount of Six Thousand Two Hundred Fifty Dollars ($6,250) for the Exim Committed
Line (the "Exim Loan Fee") plus all out-of-pocket expenses. Additionally,
Borrower shall pay any Exim Bank Expenses incurred in connection with the Exim
Guarantee. Notwithstanding the foregoing, any attorney fees or expenses incurred
in connection with this Agreement shall be capped at $5,000 for each credit
facility.

6.      NO DEFENSES OF BORROWER. Borrower (and each guarantor and pledgor
signing below) agrees that, as of the date hereof, it has no defenses against
the obligations to pay any amounts under the Indebtedness.

7.      CONTINUING VALIDITY. Borrower (and each guarantor and pledgor signing
below) understands and agrees that in modifying the existing Indebtedness, Bank
is relying upon Borrower's representations, warranties, and agreements, as set
forth in the Existing Loan Documents. Except as expressly modified pursuant to
this Loan Modification Agreement, the terms of the Existing Loan Documents
remain unchanged and in full force and effect. Bank's agreement to modifications
to the existing Indebtedness pursuant to this Loan Modification Agreement in no
way shall obligate Bank to make any future modifications to the Indebtedness.
Nothing in this Loan Modification Agreement shall constitute a satisfaction of
the Indebtedness. It is the intention of Bank and Borrower to retain as liable
parties all makers and endorsers of Existing Loan Documents, unless the party is
expressly released by Bank in writing. No maker, endorser, or guarantor will be
released by virtue of this Loan Modification Agreement. The terms of this
paragraph apply not only to this Loan Modification Agreement, but also to all
subsequent loan modification agreements.

8.      CONDITIONS. The effectiveness of this Loan Modification Agreement is
conditioned upon:

        1)   Borrower's payment of the Domestic Loan Fee, the Exim Loan Fee and
             any Exim fees incurred in connection with this Agreement; and
        2)   Bank's receipt of a fully executed Borrower Agreement together with
             all Annex's and/or attachments thereto.

        This Loan Modification Agreement is executed as of the date first
written above.

BORROWER:                              BANK:

PACKETEER, INC.                        SILICON VALLEY BANK


By: /s/ BRETT D. GALLOWAY              By:  /s/ TIMOTHY M. WALSH
   --------------------------------       ---------------------------------
Name:   Brett D. Galloway              Name:    Timothy M. Walsh
     ------------------------------         -------------------------------
Title:  Chief Operating Officer        Title:   Vice President
      -----------------------------          ------------------------------



                                       2
<PAGE>   5

                             COMPLIANCE CERTIFICATE

TO:            SILICON VALLEY BANK
               Credit Department
               3003 Tasman Drive
               Santa Clara, CA  95054

FROM:          PACKETEER, INC.

The undersigned authorized Officer of PACKETEER, INC. ("Borrower"), hereby
certifies that in accordance with the terms and conditions of the Loan
Agreement, the Borrower is in complete compliance for the period ending
____________________ of all required conditions and terms except as noted below.
Attached herewith are the required documents supporting the above certification.
The Officer further certifies that these are prepared in accordance with
Generally Accepted Accounting Principles (GAAP) and are consistent from one
period to the next except as explained in an accompanying letter or footnotes.

  PLEASE INDICATE COMPLIANCE STATUS BY CIRCLING YES/NO UNDER "COMPLIES" COLUMN.

<TABLE>
<CAPTION>
REPORTING COVENANT                            REQUIRED                                  COMPLIES
- ------------------                            --------                                  --------
<S>                                           <C>                                       <C>
10Q + CC                                      Quarterly within 5 days of filing         YES/NO
10K and 8K                                    FYE within 5 days of filing               YES/NO
Annual (CPA Audited)                          FYE w/in 120 days                         YES/NO
A/R & A/P Agings + BBC (Domestic)             Monthly w/in 20 days                      YES/NO
A/R & A/P Agings, Export Order + BBC (Exim)   With each Advance request and monthly
                                              within 30 days                            YES/NO
Inventory Schedules                           Monthly w/in 30 days                      YES/NO
</TABLE>

<TABLE>
<CAPTION>
FINANCIAL COVENANT                   REQUIRED                   ACTUAL                 COMPLIES
- ------------------                   --------                   ------                 --------
<S>                                  <C>                        <C>                    <C>

TO BE TESTED QUARTERLY UNLESS OTHERWISE NOTED:

Minimum Adjusted Quick Ratio            2.00:1.00              _____:1.00               YES/NO
Maximum Quarterly Loss                 $4,000,000*             $_________               YES/NO
</TABLE>


*    for any single quarter (3 month periods ending 12/31/99; 3/31/00; 6/30/00;
     and 9/30/00) with a maximum loss of $12,000,000 in the aggregate for the
     period 10/1/99 through 9/30/00

COMMENTS REGARDING FINANCIAL COVENANTS:
                                             ---------------------------------
                                                       BANK USE ONLY

                                             RECEIVED BY:____________________
                                             DATE:________________
                                             VERIFIED BY:____________________
                                             COMPLIANCE STATUS:  YES/NO
                                             ---------------------------------

Very truly yours,

PACKETEER, INC.


By:_____________________________________

Name:___________________________________

Title:_____________________________________

<PAGE>   6
                                                                         ANNEX B

                    EXPORT-IMPORT BANK OF THE UNITED STATES
                       WORKING CAPITAL GUARANTEE PROGRAM

                               BORROWER AGREEMENT


     THIS BORROWER AGREEMENT (this "Agreement") is made and entered into by the
entity identified as Borrower on the signature page hereof ("Borrower") in favor
of the Export-Import Bank of the United States ("Ex-Im Bank") and the
institution identified as Lender on the signature page hereof ("Lender").

                                    RECITALS

     Borrower has requested that Lender establish a Loan Facility in favor of
Borrower for the purposes of providing Borrower with pre-export working capital
to finance the manufacture, production or purchase and subsequent export sale
of Items.

     It is a condition to the establishment of such Loan Facility that Ex-Im
Bank guarantee the payment of ninety percent (90%) of certain credit
accommodations subject to the terms and conditions of a Master Guarantee
Agreement, the Loan Authorization Agreement, and to the extent applicable, the
Delegated Authority Letter Agreement.

     Borrower is executing this Agreement for the benefit of Lender and Ex-Im
Bank in consideration for and as a condition to Lender's establishing the Loan
Facility and Ex-Im Bank's agreement to guarantee such Loan Facility pursuant to
the Master Guarantee Agreement.

     NOW, THEREFORE, Borrower hereby agrees as follows:

                                   ARTICLE I
                                  DEFINITIONS

1.01. Definitions of Terms. As used in this Agreement, including the Recitals
to this Agreement and the Loan Authorization Agreement, the following terms
shall have the following meanings:

     "Accounts Receivable" shall mean all of Borrower's now owned or hereafter
acquired (a) "accounts" (as such term is defined in the UCC), other
receivables, book debts and other forms of obligations, whether arising out of
goods sold or services rendered or from any other transaction; (b) rights in,
to and under all purchase orders or receipts for goods or services; (c) rights
to any goods represented or purported to be represented by any of the foregoing
(including unpaid sellers' rights of rescission, replevin, reclamation and
stoppage in transit and rights to returned, reclaimed or repossessed goods);
(d) moneys due or to become due to such Borrower under all purchase orders and
contracts for the sale of goods or the performance of services or both by


<PAGE>   7

Borrower (whether or not yet earned by performance on the part of Borrower),
including the proceeds of the foregoing; (e) any notes, drafts, letters of
credit, insurance proceeds or other instruments, documents and writings
evidencing or supporting the foregoing; and (f) all collateral security and
guarantees of any kind given by any other Person with respect to any of the
foregoing.

     "Advance Rate" shall mean the rate specified in Section 5(C) of the Loan
Authorization Agreement for each category of Collateral.

     "Business Day" shall mean any day on which the Federal Reserve Bank of New
York is open for business.

     "Buyer" shall mean a Person that has entered into one or more Export
Orders with Borrower.

     "Collateral" shall mean all property and interest in property in or upon
which Lender has been granted a Lien as security for the payment of all the
Loan Facility Obligations including the Collateral identified in Section 6 of
the Loan Authorization Agreement and all products and proceeds (cash and
non-cash) thereof.

     "Commercial Letters of Credit" shall mean those letters of credit subject
to the UCP payable in Dollars and issued or caused to be issued by Lender on
behalf of Borrower under a Loan Facility for the benefit of a supplier(s) of
Borrower in connection with Borrower's purchase of goods or services from the
supplier in support of the export of the Items.

     "Country Limitation Schedule" shall mean the schedule published from time
to time by Ex-Im Bank and provided to Borrower by Lender which sets forth on a
country by country basis whether and under what conditions Ex-Im Bank will
provide coverage for the financing of export transactions to countries listed
therein.

     "Credit Accommodation Amount" shall mean, the sum of (a) the aggregate
outstanding amount of Disbursements and (b) the aggregate outstanding face
amount of Letter of Credit Obligations.

     "Credit Accommodations" shall mean, collectively, Disbursements and
Letter of Credit Obligations.

     "Debarment Regulations" shall mean, collectively, (a) the Governmentwide
Debarment and Suspension (Nonprocurement) regulations (Common Rule), 53 Fed.
Reg. 19204 (May 26, 1988), (b) Subpart 9.4 (Debarment, Suspension and
Ineligibility) of the Federal Acquisition Regulations, 48 C.F.R. 9.400-9.409
and (c) the revised Governmentwide Debarment and Suspension (Nonprocurement)
regulations (Common Rule), 60 Fed. Reg. 33037 (June 26, 1995).

     "Delegated Authority Letter Agreement" shall mean the Delegated Authority
Letter Agreement, if any, between Ex-Im Bank and Lender.


                                       2



<PAGE>   8

     "Disbursement" shall mean, collectively, (a) an advance of a working
capital loan from Lender to Borrower under the Loan Facility, and (b) an
advance to fund a drawing under a Letter of Credit issued or caused to be
issued by lender for the account of Borrower under the Loan Facility.

     "Dollars" or "$" shall mean the lawful currency of the United States.

     "Effective Date" shall mean the date on which (a) the Loan Documents are
executed by Lender and Borrower or the date, if later, on which agreements are
executed by Lender and Borrower adding the Loan Facility to an existing working
capital loan arrangement between Lender and Borrower and (b) all of the
conditions to the making of the initial Credit Accommodations under the Loan
Documents or any amendments thereto have been satisfied.

     "Eligible Export-Related Accounts Receivable" shall mean an Export-Related
Account Receivable which is acceptable to Lender and which is deemed to be
eligible pursuant to the Loan Documents, but in no event shall Eligible
Export-Related Accounts Receivable include any Account Receivable:

     (a)  that does not arise from the sale of Items in the ordinary course of
Borrower's business;

     (b)  that is not subject to a valid, perfected first priority Lien in
favor of lender;

     (c)  as to which any covenant, representation or warranty contained in the
Loan Documents with respect to such Account Receivable has been breached;

     (d)  that is not owned by Borrower or is subject to any right, claim or
interest of another Person other than the Lien in favor of Lender;

     (e)  with respect to which an invoice has not been sent;

     (f)  that arises from the sale of defense articles or defense services;

     (g)  that is due and payable from a Buyer located in a country with which
Ex-Im Bank is prohibited from doing business as designated in the Country
Limitation Schedule;

     (h)  that does not comply with the requirements of the Country Limitation
Schedule;

     (i)  that is due and payable more than one hundred eighty (180) days from
the date of the invoice;

     (j)  that is not paid within sixty (60) calendar days from its original
due date, unless it is insured through Ex-Im Bank export credit insurance for
comprehensive commercial and political risk, or through Ex-Im Bank approved
private insurers for comparable coverage, in which case it is not paid within
ninety (90) calendar days from its due date;


                                       3
<PAGE>   9
     (k)  that arises from a sale of goods to or performance of services for an
employee of Borrowers, a stockholder of Borrower, a subsidiary of Borrower, a
Person with a controlling interest in Borrower or a Person which shares common
controlling ownership with Borrower;

     (l)  that is backed by a letter of credit unless the Items covered by the
subject letter of credit have been shipped;

     (m)  that Lender or Ex-Im Bank, in its reasonable judgment, deems
uncollectible for any reason;

     (n)  that is due and payable in a currency other than Dollars, except as
may be approved in writing by Ex-Im Bank;

     (o)  that is due and payable from a military Buyer, except as may be
approved in writing by Ex-Im Bank;

     (p)  that does not comply with the terms of sale set forth in Section 7 of
the Loan Authorization Agreement;

     (q)  that is due and payable from a Buyer who (i) applies for, suffers, or
consents to the appointment of, or the taking of possession by, a receiver,
custodian, trustee or liquidator of itself or of all or a substantial part of
its property or calls a meeting of its creditors, (ii) admits in writing its
inability, or is generally unable, to pay its debts as they become due or
ceases operations of its present business, (iii) makes a general assignment for
the benefit of creditors, (iv) commences a voluntary case under any state or
federal bankruptcy laws (as now or hereafter in effect), (v) is adjudicated as
bankrupt or insolvent, (vi) files a petition seeking to take advantage of any
other law providing for the relief of debtors, (vii) acquiesces to, or fails to
have dismissed, any petition which is filed against it in any involuntary case
under such bankruptcy laws, or (viii) takes any action for the purpose of
effecting any of the foregoing;

     (r)  that arises from a bill-and-hold, guaranteed sale, sale-and-return,
sale on approval, consignment or any other repurchase or return basis or is
evidenced by chattel paper;

     (s)  for which the Items giving rise to such Account Receivable have not
been shipped and delivered to and accepted by the Buyer or the services giving
rise to such Account Receivable have not been performed by Borrower and
accepted by the Buyer or the Account Receivable otherwise does not represent a
final sale;

     (t)  that is subject to any offset, deduction, defense, dispute, or
counterclaim or the Buyer is also a creditor or supplier of Borrower or the
Account Receivable is contingent in any respect or for any reason;

     (u)  for which Borrower has made any agreement with the Buyer for any
deduction therefrom, except for discounts or allowances made in the ordinary
course of business for prompt payment, all of which discounts or allowances are
reflected in the calculation of the face value of each respective invoice
related thereto; or



                                       4
<PAGE>   10
     (v)  for which any of the Items giving rise to such Account Receivable
have been returned, rejected or repossessed.

     "Eligible Export-Related Inventory" shall mean Export-Related Inventory
which is acceptable to Lender and which is deemed to be eligible pursuant to
the Loan Documents, but in no event shall Eligible Export-Related Inventory
include any Inventory;

     (a)  that is not subject to a valid, perfected first priority Lien in
favor of Lender;

     (b)  that is located at an address that has not been disclosed to Lender
in writing;

     (c)  that is placed by Borrower on consignment or held by Borrower on
consignment from another Person;

     (d)  that is in the possession of a processor or bailee, or located on
premises leased or subleased to Borrower, or on premises subject to a mortgage
in favor of a Person other than Lender, unless such processor or bailee or
mortgagee or the lessor or sublessor of such premises, as the case may be, has
executed and delivered all documentation which Lender shall require to evidence
the subordination or other limitation or extinguishment of such Person's rights
with respect to such Inventory and Lender's right to gain access thereto;

     (e)  that is produced in violation of the Fair Labor Standards Act or
subject to the "hot goods" provisions contained in 29 US.C. Section 215 or any
successor statute or section;

     (f)  as to which any covenant, representation or warranty with respect to
such Inventory contained in the Loan Documents has been breached;

     (g)  that is not located in the United States;

     (h)  that is demonstration Inventory;

     (i)  that consists of proprietary software (i.e. software designed solely
for Borrower's internal use and not intended for resale);

     (j)  that is damaged, obsolete, returned, defective, recalled or unfit for
further processing;

     (k)  that has been previously exported from the United States;

     (l)  that constitutes defense articles or defense services;

     (m)  that is to be incorporated into Items destined for shipment to a
country as to which Ex-Im Bank is prohibited from doing business as designated
in the Country Limitation Schedule;

     (n)  that is to be incorporated into Items destined for shipment to a
Buyer located in a country in which Ex-Im Bank coverage is not available for
commercial reasons as designated in the County Limitation Schedule, unless and
only to the extent that such Items are to be sold to such country on terms of a
letter of credit confirmed by a bank acceptable to Ex-Im Bank; or



                                       5
<PAGE>   11
      (o) that is to be incorporated into Items whose sale would result in an
Account Receivable which would not be an Eligible Export-Related Account
Receivable.

      "Eligible Person" shall mean a sole proprietorship, partnership, limited
liability partnership, corporation or limited  liability company which (a) is
domiciled, organized, or formed, as the case may be, in the United States; (b)
is in good standing in the state of its formation or otherwise authorized to
conduct business in the United States; (c) is not currently suspended or
debarred from doing business with the United States government or any
instrumentality, division, agency or department thereof; (d) exports or plans to
export Items; (e) operates and has operated as a going concern for at least one
(1) year; (f) has a positive tangible net worth determined in accordance with
GAAP; and (g) has revenue generating operations relating to its core business
activities for at least one year.

      "ERISA" shall mean the Employee Retirement Income Security Act of 1974 and
the rules and regulations promulgated thereunder.

      "Export Order" shall mean a written export order or contract for the
purchase by the Buyer from Borrower of any of the Items.

      "Export-Related Accounts Receivable" shall mean those Accounts Receivable
arising from the sale of Items which are due and payable to Borrower in the
United States.

      "Export-Related Accounts Receivable Value" shall mean, at the date of
determination thereof, the aggregate face amount of Eligible Export-Related
Accounts Receivable less taxes, discounts, credits, allowances and Retainages,
except to the extent otherwise permitted by Ex-Im Bank in writing.

      "Export-Related Borrowing Base" shall mean, at the date of determination
thereof, the sum of (a) the Export-Related Inventory Value multiplied by the
Advance Rate applicable to Export-Related Inventory set forth in Section 5(C)(1)
of the Loan Authorization Agreement, (b) the Export-Related Accounts Receivable
Value multiplied by the Advance Rate applicable to Export-Related Accounts
Receivables set forth in Section 5(C)(2) of the Loan Authorization Agreement,
(c) if permitted by Ex-Im Bank in writing, the Retainage Value multiplied by the
Retainage Advance Rate set forth in Section 5(C)(3) of the Loan Authorization
Agreement and (d) the Other Assets Value multiplied by the Advance Rate
applicable to Other Assets set forth in Section 5(C)(4) of the Loan
Authorization Agreement.

      "Export-Related Borrowing Base Certificate" shall mean a certificate in
the form provided or approved by Lender, executed by Borrower and delivered to
Lender pursuant to the Loan Documents detailing the Export-Related Borrowing
Base supporting the Credit Accommodations which reflects, to the extent included
in the Export-Related Borrowing Base, Export-Related Accounts Receivable,
Eligible Export-Related Accounts Receivable, Export-Related Inventory and
Eligible Export-Related Inventory balances that have been reconciled with
Borrower's general ledger, Accounts Receivable aging report and Inventory
schedule.

      "Export-Related General Intangibles" shall mean those General Intangibles
necessary or desirable to or for the disposition of Export-Related Inventory.


                                       6
<PAGE>   12
      "Export-Related Inventory" shall mean the Inventory of Borrower located in
the United States that has been purchased, manufactured or otherwise acquired by
Borrower for resale pursuant to Export Orders.

      "Export-Related Inventory Value" shall mean, at the date of determination
thereof, the lower of cost or market value of Eligible Export-Related Inventory
of Borrower as determined in accordance with GAAP.

      "Final Disbursement Date" shall mean, unless subject to an extension of
such date agreed to by Ex-Im Bank, the last date on which Lender may make a
Disbursement set forth in Section 10 of the Loan Authorization Agreement or, if
such date is not a Business Day, the next succeeding Business Day; provided,
however, to the extent that Lender has not received cash collateral or an
indemnity with respect to Letter of Credit Obligations outstanding on the Final
Disbursement Date, the Final Disbursement Date with respect to an advance to
fund a drawing under a Letter of Credit shall be no later than thirty (30)
Business Days after the expiry date of the Letter of Credit related thereto.

      "GAAP" shall mean the generally accepted accounting principles issued by
the American Institute of Certified Public Accountants as in effect from time to
time.

      "General Intangibles" shall mean all intellectual property and other
"general intangibles" (as such term is defined in the UCC) necessary or
desirable to or for the disposition of Inventory.

      "Guarantor" shall mean each Person, if any, identified in Section 3 of the
Loan Authorization Agreement who shall guarantee (jointly and severally if more
than one) the payment and performance of all or a portion of the Loan Facility
Obligations.

      "Guaranty Agreement" shall mean a valid and enforceable agreement of
guaranty executed by each Guarantor in favor of Lender.

      "Inventory" shall mean all "inventory" (as such term is defined in the
UCC), now or hereafter owned or acquired by Borrower, wherever located,
including all inventory, merchandise, goods and other personal property which
are held by or on behalf of Borrower for sale or lease or are furnished or are
to be furnished under a contract of service or which constitute raw materials,
work in process or materials used or consumed or to be used or consumed in
Borrower's business or in the processing, production, packaging, promotion,
delivery or shipping of the same, including other supplies.

      "ISP" shall mean the International Standby Practices-ISP98, International
Chamber of Commerce Publication No. 590 and any amendments and revisions
thereof.

      "Issuing Bank" shall mean the bank that issues a Letter of Credit, which
bank is Lender itself or a bank that Lender has caused to issue a Letter of
Credit by way of guarantee.

      "Items" shall mean the finished goods or services which are intended for
export from the United States, as specified in Section 4(A) of the Loan
Authorization Agreement.


                                       7
<PAGE>   13


     "Letter of Credit" shall mean a Commercial Letter of Credit or a Standby
Letter of Credit.

     "Letter of Credit Obligations" shall mean all outstanding incurred by
Lender, whether direct or indirect, contingent or otherwise, due or not due, in
connection with the issuance or guarantee by Lender or the Issuing Bank of
Letters of Credit.

     "Lien" shall mean any mortgage, security deed or deed of trust, pledge,
hypothecation, assignment, deposit arrangement, lien, charge, claim, security
interest, security title, easement or encumbrance, or preference, priority or
other security agreement or preferential arrangement of any kind or nature
whatsoever (including any lease or title retention agreement, any financing
lease having substantially the same economic effect as any of the foregoing, and
the filing of, or agreement to give, any financing statement perfecting a
security interest under the UCC or comparable law of any jurisdiction) by which
property is encumbered or otherwise charged.

     "Loan Agreement" shall mean a valid and enforceable agreement between
Lender and Borrower setting forth the terms and conditions of the Loan Facility.

     "Loan Authorization Agreement" shall mean the Loan Authorization Agreement
entered into between Lender and Ex-Im Bank or the Loan Authorization Notice
setting forth certain terms and conditions of the Loan Facility, a copy of which
is attached hereto as Annex A.

     "Loan Authorization Notice" shall mean the Loan Authorization Notice
executed by Lender and delivered to Ex-Im Bank in accordance with the Delegated
Authority Letter Agreement setting forth the terms and conditions of each Loan
Facility.

     "Loan Documents" shall mean the Loan Authorization Agreement, the Loan
Agreement, this Agreement, each promissory note (if applicable), each Guaranty
Agreement, and all other instruments, agreements and documents now or hereafter
executed by Borrower or any Guarantor evidencing, securing, guaranteeing or
otherwise relating to the Loan Facility or any Credit Accommodations made
thereunder.

     "Loan Facility" shall mean the Revolving Loan Facility, the Transaction
Specific Loan Facility or the Transaction Specific Revolving Loan Facility
established by Lender in favor of Borrower under the Loan Documents.

     "Loan Facility Obligations" shall mean all loans, advances, debts,
expenses, fees, liabilities, and obligations for the performance of covenants,
tasks or duties or for payment of monetary amounts (whether or not such
performance is then required or contingent, or amounts are liquidated or
determinable) owing by Borrower to Lender, of any kind or nature, present or
future, arising in connection with the Loan Facility.

     "Loan Facility Term" shall mean the number of months from the Effective
Date to the Final Disbursement Date as originally set forth in the Loan
Authorization Agreement.

     "Master Guarantee Agreement" shall mean the Master Guarantee Agreement
between Ex-Im Bank and Lender, as amended, modified, supplemented and restated
from time to time.


                                       8

<PAGE>   14
     "Material Adverse Effect" shall mean a material adverse effect on (a) the
business, assets, operations, prospects or financial or other condition of
Borrower or any Guarantor, (b) Borrower's ability to pay or perform the Loan
Facility Obligations in accordance with the terms thereof, (c) the Collateral
or Lender's Liens on the Collateral or the priority of such Lien or (d)
Lender's rights and remedies under the Loan Documents.

     "Maximum Amount" shall mean the maximum principal balance of Credit
Accommodations that may be outstanding at any time under the Loan Facility
specified in Section 5(A) of the Loan Authorization Agreement.

     "Other Assets" shall mean the Collateral, if any, described in Section
5(C)(4) of the Loan Authorization Agreement.

     "Other Assets Value" shall mean, at the date of determination thereof, the
value of the Other Assets as determined in accordance with GAAP.

     "Permitted Liens" shall mean (a) Liens for taxes, assessments or other
governmental charges or levies not delinquent, or, being contested in good
faith and by appropriate proceedings and with respect to which proper reserves
have been taken by Borrower; provided that, the Lien shall have no effect on
the priority of the Liens in favor of Lender or the value of the assets in
which Lender has such a Lien and a stay of enforcement of any such Lien shall
be in effect; (b) deposits or pledges securing obligations under worker's
compensation, unemployment insurance, social security or public liability laws
or similar legislation; (c) deposits or pledges securing bids, tenders,
contracts (other than contracts for the payment of money), leases statutory
obligations, surety and appeal bonds and other obligations of like nature
arising in the ordinary course of Borrower's business; (d) judgment Liens that
have been stayed or bonded; (e) mechanics', workers', materialmen's or other
like Liens arising in the ordinary course of Borrower's business with respect
to obligations which are not due; (f) Liens placed upon fixed assets hereafter
acquired to secure a portion of the purchase price thereof, provided, that, any
such Lien shall not encumber any other property of Borrower; (g) security
interests being terminated concurrently with the execution of the Loan
Documents; (h) Liens in favor of Lender securing the Loan Facility Obligations;
and (i) Liens disclosed in Section 6(D) of the Loan Authorization Agreement.

     "Person" shall mean any individual, sole proprietorship, partnership,
limited liability partnership, joint venture, trust, unincorporated
organization, association, corporation, limited liability company, institution,
public benefit corporation, entity or government (whether national, federal,
provincial, state, county, city, municipal or otherwise, including any
instrumentality, division, agency, body or department thereof), and shall
include such Person's successors and assigns.

     "Principals" shall mean any officer, director, owner, partner, key
employee, or other Person with primary management or supervisory
responsibilities with respect to Borrower or any other Person (whether or not
an employee) who has critical influence on or substantive control over the
transactions covered by this Agreement.


                                       9
<PAGE>   15
     "Retainage" shall mean that portion of the purchase price of an Export
Order that a Buyer is not obligated to pay until the end of a specified period
of time following the satisfactory performance under such Export Order.

     "Retainage Accounts Receivable" shall mean those portions of Eligible
Export-Related Accounts Receivable arising out of a Retainage.

     "Retainage Advance Rate" shall mean the percentage rate specified in
Section 5(C)(3) of the Loan Authorization Agreement as the Advance Rate for the
Retainage Accounts Receivable of Borrower.

     "Retainage Value" shall mean, at the date of determination thereof, the
aggregate face amount of Retainage Accounts Receivable, less taxes, discounts,
credits and allowances, except to the extent otherwise permitted by Ex-Im Bank
in writing.

     "Revolving Loan Facility" shall mean the credit facility or portion
thereof established by Lender in favor of Borrower for the purpose of providing
pre-export working capital in the form of loans and/or Letters of Credit to
finance the manufacture, production or purchase and subsequent export sale of
Items pursuant to Loan Documents under which Credit Accommodations may be made
and repaid on a continuous basis based solely on the Export-Related Borrowing
Base during the term of such credit facility.

     "Special Conditions" shall mean those conditions, if any, set forth in
Section 13 of the Loan Authorization Agreement.

     "Specific Export Orders" shall mean those Export Orders specified in
Section 5(D) of the Loan Authorization Agreement.

     "Standby Letter of Credit" shall mean those letters of credit subject to
the ISP or UCP issued or caused to be issued by Lender for Borrower's account
that can be drawn upon by a Buyer only if Borrower fails to perform all of its
obligations with respect to an Export Order.

     "Transaction Specific Loan Facility" shall mean a credit facility or a
portion thereof established by Lender in favor of Borrower for the purpose of
providing pre-export working capital in the form of loans and/or Letters of
Credit to finance the manufacture, production or purchase and subsequent export
sale of Items pursuant to Loan Documents under which Credit Accommodations are
made based solely on the Export-Related Borrowing Base relating to Specific
Export Orders and once such Credit Accommodations are repaid they may not be
reborrowed.

     "Transaction Specific Revolving Loan Facility" shall mean a Revolving
Credit Facility established to provide financing of Specific Export Orders.

     "UCC" shall mean the Uniform Commercial Code as the same may be in effect
from time to time in the jurisdiction in which Borrower or Collateral is
located.

                                       10
<PAGE>   16
     "UCP" shall mean the Uniform Customs and Practice for Documentary Credits
(1993 Revision), International Chamber of Commerce Publication No. 500 and any
amendments and revisions thereof.

     "U.S." or "United States" shall mean the United States of America and its
territorial possessions.

     "U.S. Content" shall mean with respect to any Item all the labor,
materials and services which are of U.S. origin or manufacture, and which are
incorporated into an Item in the United States.

     "Warranty" shall mean Borrower's guarantee to Buyer that the Items will
function as intended during the warranty period set forth in the applicable
Export Order.

     "Warranty Letter of Credit" shall mean a Standby Letter of Credit which is
issued or caused to be issued by Lender to support the obligations of Borrower
with respect to a Warranty or a Standby Letter of Credit which by its terms
becomes a Warranty Letter of Credit.

1.02 Rules of Construction. For purposes of this Agreement, the following
additional rules of construction shall apply, unless specifically indicated to
the contrary: (a) wherever from the context it appears appropriate, each term
stated in either the singular or plural shall include the singular and the
plural, and pronouns stated in the masculine, feminine or neuter gender shall
include the masculine, the feminine and the neuter; (b) the term "or" is not
exclusive; (c) the term "including" (or any form thereof) shall not be limiting
or exclusive; (d) all references to statutes and regulations shall include any
amendments of same and any successor statutes and regulations; (e) the words
"this Agreement", "herein", "hereof", "hereunder" or other words of similar
import refer to this Agreement as a whole including the schedules, exhibits,
and annexes hereto as the same may be amended, modified or supplemented; (f)
all references in this Agreement to sections, schedules, exhibits, and annexes
shall refer to the corresponding sections, schedules, exhibits, and annexes of
or to this Agreement; and (g) all references to any instruments or agreements,
including references to any of the Loan Documents, or the Delegated Authority
Letter Agreement shall include any and all modifications, amendments and
supplements thereto and any and all extensions or renewals thereof to the
extent permitted under this Agreement.

1.03 Incorporation of Recitals. The Recitals to this Agreement are incorporated
into and shall constitute a part of this Agreement.

                                   ARTICLE II
                            OBLIGATIONS OF BORROWER


     Until payment in full of all Loan Facility Obligations and termination of
the Loan Documents, Borrower agrees as follows:

2.01 Use of Credit Accommodations. (a) Borrower shall use Credit Accommodations
only for the purpose of enabling Borrower to finance the cost of manufacturing,
producing, purchasing or selling the Items. Borrower may not use any of the
Credit Accommodations for the purpose of:


                                       11

<PAGE>   17
(i) servicing or repaying any of Borrower's pre-existing or future indebtedness
unrelated to the Loan Facility (unless approved by Ex-Im Bank in writing); (ii)
acquiring fixed assets or capital goods for use in Borrower's business; (iii)
acquiring, equipping or renting commercial space outside of the United States;
(iv) paying the salaries of non U.S. citizens or non-U.S. permanent residents
who are located in offices outside of the United States; or (v) in connection
with a Retainage or Warranty (unless approved by Ex-Im Bank in writing).

     (b) In addition, no Credit Accommodation may be used to finance the
manufacture, purchase or sale of any of the following:

          (i) Items to be sold or resold to a Buyer located in a country as to
which Ex-Im Bank is prohibited from doing business as designated in the Country
Limitation Schedule;

          (ii) that part of the cost of the Items which is not U.S. Content
unless such part is not greater than fifty percent (50%) of the cost of the
Items and is incorporated into the Items in the United States;

          (iii) defense articles or defense services; or

          (iv) without Ex-Im Bank's prior written consent, any Items to be used
in the construction, alteration, operation or maintenance of nuclear power,
enrichment, reprocessing, research or heavy water production facilities.

2.02 Loan Documents and Loan Authorization Agreement. (a) Each Loan Document
and this Agreement have been duly executed and delivered on behalf of Borrower,
and each such Loan Document and this Agreement are and will continue to be a
legal and valid obligation of Borrower, enforceable against it in accordance
with its terms.

     (b) Borrower shall comply with all of the terms and conditions of the Loan
Documents, this Agreement and the Loan Authorization Agreement.

2.03 Export-Related Borrowing Base Certificates and Export Orders. In order to
receive Credit Accommodations under the Loan Facility, Borrower shall have
delivered to Lender an Export-Related Borrowing Base Certificate as frequently
as required by Lender but at least within the past thirty (30) calendar days and
a copy of the Export Order(s) (or, for Revolving Loan Facilities, if permitted
by Lender, a written summary of the Export Orders) against which Borrower is
requesting Credit Accommodations. If Lender permits summaries of Export Orders,
Borrower shall also deliver promptly to Lender copies of any Export Orders
requested by Lender. In addition, so long as there are any Credit Accommodations
outstanding under the Loan Facility, Borrower shall deliver to Lender at least
once each month no later than the twentieth (20th) day of such month or more
frequently as required by the Loan Documents, an Export-Related Borrowing Base
Certificate.

2.04 Exclusions from the Export-Related Borrowing Base. In determining the
Export-Related Borrowing Base, Borrower shall exclude therefrom Inventory which
is not Eligible Export-Related Inventory and Accounts Receivable which are not
Eligible Export-Related Accounts Receivable. Borrower shall promptly, but in
any event within five (5) Business Days, notify

                                       12

<PAGE>   18
Lender (a) if any then existing Export-Related Inventory no longer constitutes
Eligible Export-Related Inventory or (b) of any event or circumstance which to
Borrower's knowledge would cause Lender to consider any then existing
Export-Related Accounts Receivable as no longer constituting an Eligible
Export-Related Accounts Receivable.

 2.05 Financial Statements. Borrower shall deliver to Lender the financial
statements required to be delivered by Borrower in accordance with Section 11
of the Loan Authorization Agreement.

 2.06 Schedules, Reports and Other Statements. Borrower shall submit to Lender
in writing each month (a) an Inventory schedule for the preceding month and (b)
an Accounts Receivable aging report for the preceding month detailing the terms
of amounts due from each Buyer. Borrower shall also furnish to Lender promptly
upon request such information, reports, contracts, invoices and other data
concerning the  Collateral as Lender may from time to time specify.

 2.07 Additional Security Payment. (a) Borrower shall at all times ensure that
the Export-Related Borrowing Base equals or exceeds the Credit Accommodation
Amount. If informed by Lender or if Borrower otherwise has actual knowledge that
the Export-Related Borrowing Base is at any time less than the Credit
Accommodation Amount, Borrower shall, within five (5) Business Days, either (i)
furnish additional Collateral to Lender, in form and amount satisfactory to
Lender and Ex-Im Bank or (ii) pay to Lender an amount equal to the difference
between the Credit Accommodation Amount and the Export-Related Borrowing Base.

     (b)  For purposes of this Agreement, in determining the Export-Related
Borrowing Base there shall be deducted from the Export-Related Borrowing Base
(i) an amount equal to twenty-five percent (25%) of the outstanding face amount
of Commercial Letters of Credit and Standby Letters of Credit and (ii) one
hundred percent (100%) of the face amount of Warranty Letters of Credit less
the amount of cash collateral held by Lender to secure Warranty Letters of
Credit.

     (c)  Unless otherwise approved in writing by Ex-Im Bank, for Revolving
Loan Facilities (other than Transaction  Specific Revolving Loan Facilities),
Borrower shall at all times ensure that the outstanding principal balance of
the Credit Accommodations that is supported by Export-Related Inventory does
not exceed sixty percent (60%) of the sum of the total outstanding principal
balance of the Disbursements and the undrawn face amount of all outstanding
Commercial Letters of Credit. If informed by Lender or if Borrower otherwise
has actual knowledge that the outstanding principal balance of the Credit
Accommodations that is supported by Inventory exceeds sixty percent (60%) of
the sum of the total outstanding principal balance of the Disbursements and the
undrawn face amount of all outstanding Commercial Letters of Credit, Borrower
shall, within five (5) Business Days, either (i) furnish additional
non-Inventory Collateral to Lender, in form and amount satisfactory to Lender
and Ex-Im Bank, or (ii) pay down the applicable portion of the Credit
Accommodations so that the above described ratio is not exceeded.

 2.08 Continued Security Interest. Borrower shall not change (a) its name or
identity in any manner, (b) the location of its principal place of business,
(c) the location of any of the Collateral or (d) the location of any of the
books or records related to the Collateral, in each instance

                                       13
<PAGE>   19
without giving thirty (30) days prior written notice thereof to Lender and
taking all actions deemed necessary or appropriate by Lender to continuously
protect and perfect Lender's Liens upon the Collateral.

     2.09 Inspection of Collateral. Borrower shall permit the representatives of
Lender and Ex-Im Bank to make at any time during normal business hours
inspections of the Collateral and of Borrower's facilities, activities, and
books and records, and shall cause its officers and employees to give full
cooperation and assistance in connection therewith.

     2.10 General Intangibles. Borrower represents and warrants that it owns,
or is licensed to use, all General Intangibles necessary to conduct its
business as currently conducted except where the failure of Borrower to own or
license such General Intangibles could not reasonably be expected to have a
Material Adverse Effect.

     2.11 Notice of Certain Events. Borrower shall promptly, but in any event
within five (5) Business Days, notify Lender in writing of the occurrence of
any of the following:

          (a)  Borrower or any Guarantor (i) applies for, consents to or
suffers the appointment of, or the taking of possession by, a receiver,
custodian, trustee, liquidator or similar fiduciary of itself or of all or a
substantial part of its property or calls a meeting of its creditors, (ii)
admits in writing its inability, or is generally unable, to pay its debts as
they become due or ceases operations of its present business, (iii) makes a
general assignment for the benefit of creditors, (iv) commences a voluntary
case under any state or federal bankruptcy laws (as now or hereafter in
effect), (v) is adjudicated as bankrupt or insolvent, (vi) files a petition
seeking to take advantage of any other law providing for the relief of debtors,
(vii) acquiesces to, or fails to have dismissed within thirty (30) days, any
petition filed against it in any involuntary case under such bankruptcy laws,
or (vii) takes any action for the purpose of effecting any of the foregoing;

          (b)  any Lien in any of the Collateral, granted or intended by the
Loan Documents to be granted to Lender, ceases to be a valid, enforceable,
perfected, first priority Lien (or a lesser priority if expressly permitted
pursuant to Section 6 of the Loan Authorization Agreement) subject only to
Permitted Liens;

          (c)  the issuance of any levy, assessment, attachment, seizure or
Lien, other than a Permitted Lien, against any of the Collateral which is not
stayed or lifted within thirty (30) calendar days;

          (d)  any proceeding is commenced by or against Borrower or any
Guarantor for the liquidation of its assets or dissolution;

          (e)  any litigation is filed against Borrower or any Guarantor which
has had or could reasonably be expected to have a Material Adverse Effect and
such litigation is not withdrawn or dismissed within thirty (30) calendar days
of the filing thereof;

          (f)  any default or event of default under the Loan Documents;

          (g) any failure to comply with any terms of the Loan Authorization
Agreement;

                                       14
<PAGE>   20

        (h)     any material provision of any Loan Document or this Agreement
for any reason ceases to be valid, binding and enforceable in accordance with
its terms;

        (i)     any event which has had or could reasonably be expected to have
a Material Adverse Effect; or

        (j)     the Credit Accommodation Amount exceeds the applicable
Export-Related Borrowing Base.

    2.12 Insurance. Borrower will at all times carry property, liability and
other insurance, with insurers acceptable to Lender, in such form and amounts,
and with such deductibles and other provisions, as Lender shall require, and
Borrower will provide evidence of such insurance to Lender, so that Lender is
satisfied that such insurance is, at all times, in full force and effect. Each
property insurance policy shall name Lender as loss payee and shall contain a
lender's loss payable endorsement in form acceptable to Lender and each
liability insurance policy shall name Lender as an additional insured. All
policies of insurance shall provide that they may not be cancelled or changed
without at least ten (10) days' prior written notice to Lender and shall
otherwise be in form and substance satisfactory to Lender. Borrower will
promptly deliver to Lender copies of all reports made to insurance companies.

    2.13 Taxes. Borrower has timely filed all tax returns and reports required
by applicable law, has timely paid all applicable taxes, assessments, deposits
and contributions owing by Borrower and will timely pay all such items in the
future as they became due and payable. Borrower may, however, defer payment of
any contested taxes; provided, that Borrower (a) in good faith contests
Borrower's obligation to pay such taxes by appropriate proceedings promptly and
diligently instituted and conducted; (b) notifies Lender in writing of the
commencement of, and any material development in, the proceedings; (c) posts
bonds or takes any other steps required to keep the contested taxes from
becoming a Lien upon any of the Collateral; and (d) maintains adequate reserves
therefor in conformity with GAAP.

    2.14 Compliance with Laws. Borrower represents and warrants that it has
complied in all material respects with all provisions of all applicable laws
and regulations, including those relating to Borrower's ownership of real or
personal property, the conduct and licensing of Borrower's business, the
payment and withholding of taxes, ERISA and other employee matters, safety and
environmental matters.

    2.15 Negative Covenants. Without the prior written consent of Ex-Im Bank
and Lender, Borrower shall not (a) merge, consolidate or otherwise combine with
any other Person; (b) acquire all or substantially all of the assets or capital
stock of any other Person; (c) sell, lease, transfer, convey, assign or
otherwise dispose of any of its assets, except for the sale of Inventory in the
ordinary course of business; (d) create any Lien on the Collateral except for
Permitted Liens; (e) make any material changes in its organizational structure
of identity; or (f) enter into any agreement to do any of the foregoing.

    2.16 Reborrowings and Repayment Terms. (a) If the Loan Facility is a
Revolving Loan Facility, provided that Borrower is not in default under any of
the Loan Documents, Borrower


                                       15
<PAGE>   21
may borrow, repay and reborrow amounts under the Loan Facility until the close
of business on the Final Disbursement Date. Unless the Revolving Loan Facility
is renewed or extended by Lender with the consent of Ex-Im Bank, Borrower shall
pay in full the outstanding Loan Facility Obligations and all accrued and
unpaid interest thereon no later than the first Business Day after the Final
Disbursement Date.

     (b) If the Loan Facility is a Transaction Specific Loan Facility, Borrower
shall, within two (2) Business Days of the receipt thereof, pay to Lender (for
application against the outstanding Loan Facility Obligations and accrued and
unpaid interest thereon) all checks, drafts, cash and other remittances it may
receive in payment or on account of the Export-Related Accounts Receivable or
any other Collateral, in precisely the form received (except for the
endorsement of Borrower where necessary). Pending such deposit, Borrower shall
hold such amounts in trust for Lender separate and apart and shall not
commingle any such items of payment with any of its other funds or property.

2.17  Cross Default. Borrower shall be deemed in default under the Loan
Facility if Borrower fails to pay when due any amount payable to Lender under
any loan or other credit accommodations to Borrower whether or not guaranteed
by Ex-Im Bank.

2.18  Munitions List. If any of the Items are articles, services, or related
technical data that are listed on the United States Munitions List (part 121 of
title 22 of the Code of Federal Regulations), Borrower shall send a written
notice promptly, but in any event within five (5) Business Days, of Borrower
learning thereof to Lender describing the Item(s) and the corresponding invoice
amount.

2.19  Suspension and Debarment, etc. On the date of this Agreement neither
Borrower nor its Principals are (a) debarred, suspended, proposed for debarment
with a final determination still pending, declared ineligible or voluntarily
excluded (as such terms are defined under any of the Debarment Regulations
referred to below) from participating in procurement or nonprocurement
transactions with any United States federal government department or agency
pursuant to any of the Debarment Regulations or (b) indicted, convicted or had
a civil judgment rendered against Borrower or any of its Principals for any of
the offenses listed in any of the Debarment Regulations. Unless authorized by
Ex-Im Bank, Borrower will not knowingly enter into any transactions in
connection with the Items with any person who is debarred, suspended, declared
ineligible or voluntarily excluded from participation in procurement or
nonprocurement transactions with any United States federal government
department or agency pursuant to any of the Debarment Regulations. Borrower
will provide immediate written notice to Lender if at any time it learns that
the certification set forth in this Section 2.19 was erroneous when made or has
become erroneous by reason of changed circumstances.

                                  ARTICLE III
                              RIGHTS AND REMEDIES

3.01  Indemnification. Upon Ex-Im Bank's payment of a Claim to Lender in
connection with the Loan Facility pursuant to the Master Guarantee Agreement,
Ex-Im Bank may assume all rights and remedies of Lender under the Loan
Documents and may enforce any such rights or remedies against Borrower, the
Collateral and any Guarantors. Borrower shall hold Ex-Im Bank

                                       16
<PAGE>   22
and Lender harmless from and indemnify them against any and all liabilities,
damages, claims, costs and losses incurred or suffered by either of them
resulting from (a) any materially incorrect certification or statement
knowingly made by Borrower or its agent to Ex-Im Bank or Lender in connection
with the Loan Facility, this Agreement, the Loan Authorization Agreement or any
other Loan Documents or (b) any material breach by Borrower of the terms and
conditions of this Agreement, the Loan Authorization Agreement or any of the
other Loan Documents. Borrower also acknowledges that any statement,
certification or representation made by Borrower in connection with the Loan
Facility is subject to the penalties provided in Article 18 U.S.C. Section 1001.

     3.02  Liens.  Borrower agrees that any and all Liens granted by it to
Lender are also hereby granted to Ex-Im Bank to secure Borrower's obligation,
however arising, to reimburse Ex-Im Bank for any payments made by Ex-Im Bank
pursuant to the Master Guarantee Agreement. Lender is authorized to apply the
proceeds of, and recoveries from, any property subject to such Liens to the
satisfaction of Loan Facility Obligations in accordance with the terms of any
agreement between Lender and Ex-Im Bank.

                                   ARTICLE IV
                                 MISCELLANEOUS

     4.01  Governing Law.  This Agreement and the Loan Authorization Agreement
and the obligations arising under this Agreement and the Loan Authorization
Agreement shall be governed by, and construed in accordance with, the law of
the state governing the Loan Documents.

     4.02  Notification.  All notices required by this Agreement shall be given
in the manner and to the parties provided for in the Loan Agreement.

     4.03  Partial Invalidity.  If at any time any of the provisions of this
Agreement becomes illegal, invalid or unenforceable in any respect under the
law of any jurisdiction, neither the legality, the validity nor the
enforceability of the remaining provisions hereof shall in any way be affected
or impaired.

     4.04  Waiver of Jury Trial.  BORROWER HEREBY KNOWINGLY, VOLUNTARILY AND
INTENTIONALLY WAIVES ANY AND ALL RIGHTS IT MAY HAVE TO A TRIAL BY JURY IN
RESPECT OF ANY ACTION, SUIT, PROCEEDING OR OTHER LITIGATION BROUGHT TO RESOLVE
ANY DISPUTE ARISING UNDER, ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT,
THE LOAN AUTHORIZATION AGREEMENT, ANY LOAN DOCUMENT, OR ANY OTHER AGREEMENT,
DOCUMENT OR INSTRUMENT EXECUTED OR DELIVERED IN CONNECTION HEREWITH OR
THEREWITH OR ANY COURSE OF CONDUCT, COURSE OF DEALING, STATEMENTS (WHETHER
VERBAL OR WRITTEN), OR ACTIONS OR OMISSIONS OF LENDER, EX-IM BANK, OR ANY OTHER
PERSON, RELATING TO THIS AGREEMENT, THE LOAN AUTHORIZATION AGREEMENT OR ANY
OTHER LOAN DOCUMENT.

                                       17
<PAGE>   23

     IN WITNESS WHEREOF, Borrower has caused this Agreement to be duly executed
as of the 24th day of January, 2000.


PACKETEER, INC.

(Name of Borrower)

By: /s/ BRETT GALLOWAY
   -----------------------------
          (Signature)

Name: Brett Galloway
     ---------------------------
          (Print or Type)

Title:  VP Engineering & C.O.O.
      --------------------------
           (Print or Type)


ACKNOWLEDGED:

SILICON VALLEY BANK
- --------------------------------
        (Name of Lender)

By: /s/ JOY C. OLGYAY
   -----------------------------
            (Signature)

Name: Joy C. Olgyay
     ---------------------------
           (Print or Type)

Title:  Vice President
      --------------------------
           (Print or Type)




                                       18


<PAGE>   1
                                                                   EXHIBIT 10.16

                        PENTECH FINANCIAL SERVICES, INC.

                                                                Lease No. 300311

                             MASTER EQUIPMENT LEASE

This is a Master Equipment Lease between PENTECH FINANCIAL SERVICES, INC., a
California corporation, whose principal office is located at 310 West Hamilton
Avenue, Suite 202, Campbell, California 95008 ("Lessor") and PACKETEER, INC., a
Delaware corporation, whose principal office address is 10495 North DeAnza
Boulevard, Cupertino, CA 95014 ("Lessee"), with effective date of November 1,
1999 ("Effective Date").

1. LEASE. Lessor agrees to lease to Lessee and Lessee agrees to lease from
Lessor, subject to the terms and conditions of this Master Equipment Lease
("Lease"), the personal property ("Equipment") described in each Acceptance
Supplement ("Supplement") executed and delivered by Lessor and Lessee pursuant
to the terms of this Lease. Each Supplement shall be in the form prescribed by
Lessor and, upon execution and delivery, shall constitute a part of this Lease
to the same extent as if the provisions thereof were set forth in full in this
Lease document; the terms "Agreement", "hereof," "herein," and "thereunder,"
when used in this Lease shall mean this Lease, each Supplement and each Schedule
as hereinafter defined. This Agreement constitutes an agreement to lease.
Ownership of the Equipment remains with Lessor and nothing herein contained
shall be construed as conveying to Lessee any right, title or interest in the
equipment except as a Lessee only.

2. SELECTION OF EQUIPMENT. Lessee acknowledges that it has selected the type,
quantity and supplier of the Equipment referred to herein and that it has
requested Lessor to purchase the same for leasing to Lessee. Lessee agrees that
the Equipment and each part or unit thereof is of a design, size, quality and
capacity required by Lessee and is suitable for its purposes. Lessee
acknowledges that Lessor has informed or advised Lessee, in writing either
previously or by this Lease, of the following: (i) the identity of the supplier;
(ii) that the Lessee may have rights under the Supply Contract; and (iii) that
the Lessee may contact the supplier for a description of any such rights Lessee
may have under the Supply Contract. Lessor hereby assigns to Lessee all rights
which Lessor has or may acquire against any manufacturer, supplier, or
contractor with respect to any warranty or representation relating to the
Equipment leased hereunder.

3. EQUIPMENT TO REMAIN PERSONAL PROPERTY; LOCATION, IDENTIFICATION; INSPECTION.
Lessee represents that the Equipment shall be and at all times remain separately
identifiable personal property. Lessee shall, at its own expense, take such
action as may be necessary to prevent any third party from acquiring any right
to or interest in the Equipment by virtue of the Equipment being deemed to be
real property or a part of other personal property, and shall indemnify Lessor
against any loss which it may sustain by reason of Lessee's failure to do so.
The Equipment may not be removed from the location specified in the Supplement
pertaining thereto without Lessor's prior written consent. If requested by
Lessor, Lessee shall attach to and maintain on each item of Equipment a
conspicuous plate or marking disclosing Lessor's ownership thereof. Lessor or
its representatives may, at all reasonable times, and without advance notice,
inspect the Equipment. Lessee shall promptly advise Lessor of any circumstances
which may in any manner affect any item of Equipment or in any manner affect
Lessor's title thereto.

4. EXECUTION OF FURTHER DOCUMENTATION. Lessee will, at its own expense, promptly
execute and deliver to Lessor such further documentation and assurances and take
such further action as Lessor may from time to time require in order to more
effectively carry out the intent and purpose of this Agreement so as to
establish and protect the rights, interests and remedies intended to be created
in favor of Lessor hereunder, including, without limitation, the execution and
filing of financing statements and continuation statements with respect to the
Equipment and Agreement. Lessee authorizes Lessor to effect any such filing
(including the filing of any financing statements without the signature of
Lessee). Any expense incurred by Lessor in connection with any filings under
this paragraph shall be payable by Lessee on demand.

5. DISCLAIMER OF IMPLIED WARRANTIES. THE EQUIPMENT WILL BE LEASED "AS IS" AND
"WHERE IS". THE LESSOR HAS NOT MADE, MAY NOT BE CONSIDERED TO HAVE MADE, AND
SPECIFICALLY DISCLAIMS:

(1) ANY EXPRESS OR IMPLIED REPRESENTATION OR WARRANTY WITH RESPECT TO THE
EQUIPMENT, REGARDING TITLE, CONDITION, DESIGN, OPERATION, MERCHANTABILITY,
FREEDOM FROM CLAIMS OF INFRINGEMENT OR THE LIKE, FITNESS FOR USE FOR A
PARTICULAR PURPOSE, QUALITY OF MATERIALS OR WORKMANSHIP, ABSENCE OF DISCOVERABLE
OR NONDISCOVERABLE DEFECTS, OR THAT THE EQUIPMENT IS IN COMPLIANCE WITH ANY
APPLICABLE GOVERNMENT REQUIREMENTS OR REGULATIONS; AND

(2) ANY OTHER EXPRESS OR IMPLIED REPRESENTATION OR WARRANTY WITH RESPECT TO THE
EQUIPMENT (INCLUDING ANY IMPLIED WARRANTY ARISING FROM A COURSE OF PERFORMANCE,
COURSE OF DEALING, OR USAGE OF TRADE); AND

(3) ANY EXPRESS OR IMPLIED REPRESENTATION OR WARRANTY REGARDING THE
CHARACTERIZATION OF THIS LEASE FOR TAX, ACCOUNTING, OR OTHER PURPOSES.

THE LESSEE WAIVES, RELEASES, RENOUNCES, AND DISCLAIMS EXPECTATION OF OR RELIANCE
ON ANY SUCH WARRANTY OR WARRANTIES.

THE LESSOR WILL NOT HAVE ANY RESPONSIBILITY OR LIABILITY TO THE LESSEE OR ANY
OTHER PERSON, WHETHER IN CONTRACT OR TORT, ARISING OUT OF ANY NEGLIGENCE OR
STRICT LIABILITY OF THE LESSOR OR OTHERWISE, FOR:

(1) ANY LIABILITY, LOSS, OR DAMAGE CAUSED OR ALLEGED TO BE CAUSED DIRECTLY OR

INDIRECTLY BY THE EQUIPMENT; BY ANY INADEQUACY, DEFICIENCY OR DEFECT OF THE
EQUIPMENT; OR BY ANY OTHER CIRCUMSTANCES IN CONNECTION WITH THIS LEASE;

(2) THE USE, OPERATION, OR PERFORMANCE OF THE EQUIPMENT OR ANY RISKS RELATING TO
IT;

(3) ANY CONSEQUENTIAL DAMAGES, INCLUDING THOSE FOR INTERRUPTION OF SERVICE, LOSS
OF BUSINESS, OR ANTICIPATED PROFITS; OR

(4) THE DELIVERY, OPERATION, MAINTENANCE, REPAIR, IMPROVEMENT, OR REPLACEMENT OF
THE EQUIPMENT.

6. TERM; ACCEPTANCE; RENT; RETURN. The term of lease of each item of Equipment
shall commence on the Commencement Date specified in the Supplement pertaining
to such Equipment and, unless earlier terminated pursuant to the provisions
hereof, shall continue for the term specified in such Supplement. Lessee's
execution and delivery of each Supplement shall constitute Lessee's irrevocable
acceptance of the equipment covered thereby for all purposes of this Agreement.
Lessee shall pay to Lessor, at the addresses specified above or at such other
address as may be provided by Lessor from time to time, rent as specified in
each Supplement. Each date on which an installment of rent is payable is
designated herein as "Rent Payment Date". As to each Supplement, the first Rent
Payment Date shall be the Rent Payment Date set forth therein, with the
succeeding Rent Payment Date on the corresponding day of each month thereafter.
In addition, if applicable, Lessee shall pay interim rent for the period between
the actual commencement of the rent under each Supplement and the date
designated as the Rent Payment Date, based on a 30 day month and the number of
days between the actual commencement date and the first Rent Payment Date.
Should any payment not be made by Lessee on or before the applicable Rent
Payment Date, Lessor shall be entitled to a late payment charge in addition to
the actual rent due of 5% of the late rent and any other amount due but unpaid
under this Agreement. Upon the expiration or earlier termination of the term of
lease of each item of Equipment leased thereunder, Lessee shall at its own
expense return such item to Lessor at such location within the continental
United States as Lessor may designate, in the condition required to be
maintained by Paragraph 9 hereof.

7. LESSEE'S OBLIGATIONS IRREVOCABLE. The Lessee's obligation to pay all rent
will be absolute and unconditional and will not be affected or reduced by any
circumstance, including:

(1) Any setoff, counterclaim, recoupment, defense, or other right that the
Lessee may have for any reason against the Lessor, the manufacturer, any seller
of the Equipment, or any person providing services with respect to the
Equipment;

(2) Any defect in the title, condition, design, operation, or fitness for use of
the Equipment; any damage to, or loss or destruction of, the Equipment; or any
interruption or cessation in its use or possession by the Lessee for any reason,
whether arising out of or related to an act or omission of the Lessor or any
other person;

(3) Any liens with respect to the Equipment;

(4) The invalidity or unenforceability of this Agreement or any absence of
right, power or authority of the Lessor or Lessee to enter into this lease;

(5) Any insolvency, bankruptcy, reorganization, or similar proceedings by or
against the Lessor or Lessee; or


<PAGE>   2

(6) Any other circumstance or occurrence of any nature, whether or not similar
to any of the foregoing.

It is the express intention of the Lessor and Lessee that all rent payable under
this Agreement will be payable in all events, unless the obligation to pay is
terminated under the express provisions of this Agreement.

The Lessee hereby waives, to the extent permitted by law, all rights that it may
now have or later acquire, by order or otherwise, to terminate this Agreement or
any obligation imposed on the Lessee in relation to this Agreement.

Nothing in this Agreement may be construed as a waiver of the Lessee's right to
seek a separate recovery of any payment of rent that is not due and payable
under this Agreement. The Lessee retains any right it may have to seek damages,
specific performance, or any other remedy at law or in equity, separately or in
combination, against the Lessor or any other person, on account of the Lessor's
or other person's failure to perform its obligations under this Agreement.

8. RESTRICTIONS ON TRANSFER. THE LESSEE MAY NOT SUBLET OR TRANSFER POSSESSION OF
THE EQUIPMENT WITHOUT THE PRIOR WRITTEN CONSENT OF THE LESSOR WHICH MAY BE
WITHHELD IN THE SOLE AND ABSOLUTE DISCRETION OF THE LESSOR. THE LESSEE MAY NOT
ASSIGN, PLEDGE, OR OTHERWISE ENCUMBER THIS LEASE.

With respect to any sublease or transfer of possession of the Equipment, the
rights of the sublessee or transferee will be subject and subordinate to all the
terms of this Agreement, including the Lessor's right of repossession on the
occurrence of an event of default. The Lessee will remain primarily liable for
the performance of all the terms of this Agreement to the same extent as if the
sublease or transfer of possession had not occurred.

The Lessor will have the right, at its sole expense, to assign, sell, or
encumber any part of its interest in the Equipment or in this Agreement and any
proceeds of the disposition of that interest, subject to the Lessee's rights
under this lease. To effect or facilitate such assignment, sale or encumbrance,
the Lessee agrees to provide all agreements, consents, conveyances or documents
that may be reasonably requested by the Lessor, including an unrestricted
release of the Lessor from its obligations under this Agreement. That release
will not release the Lessor from any liability that arose before the assignment
or sale.

Any person who succeeds to the rights and interests of the Lessor under this
clause will agree to be bound by the terms of this Agreement without alteration.

The Lessee acknowledges that an assignment, sale, or encumbrance of the Lessor's
interest would not materially change the Lessee's duties under the Agreement or
materially increase its burdens or risks. Even if such a transfer could be
deemed to have that effect, the Lessee agrees that the assignment, sale or
encumbrance will nevertheless be permitted.

Without prejudice to any rights that the Lessee may have against the Lessor, the
Lessee agrees that it will not assert against an assignee any claim or defense
that it may have against the Lessor.

The agreements, covenants, obligations and liabilities contained in this clause,
including but not limited to, all obligations to pay rent and to indemnify each
indemnitee, are made for the benefit of the indemnitees and their respective
successors and assigns.

9. MAINTENANCE COVENANT. The Lessee will:

(1) Furnish all labor and parts required for maintaining, repairing, and
replacing component parts of the Equipment to keep it in good operating
condition and appearance;

(2) Use, operate, maintain, and store the Equipment in a careful and proper
manner;

(3) Protect the Equipment from deterioration;

(4) Comply with the manufacturer's operating procedures and warranty
restrictions and all laws, ordinances, and regulations applicable to the
Equipment or its use and in compliance with the insurance policies required to
be maintained thereunder;

(5) Put the Equipment only to the use contemplated by the manufacturer; and

(6) Maintain accurate and complete records of all repairs and maintenance of the
Equipment and allow the Lessor to inspect those records at any time.

(7) Comply with the maintenance requirements of any maintenance schedule
recommended by the manufacturer or attached as a part of this agreement.



The Lessee will not make any alterations, additions, or improvements to the
Equipment without the Lessor's prior written consent, which consent shall not be
unreasonably withheld. All repairs, replacement parts, additions, alterations,
and improvements made to the Equipment by the Lessee will be considered to be
the Lessor's property and subject to the terms of this Agreement.

10. RISK OF LOSS COVENANT. The Lessee will bear the entire risk of destruction,
loss, theft, requisition of title, or use, confiscation, taking, or damage
(collectively, casualty loss) of the Equipment from any cause during the period
commencing when the Equipment is placed in transit to the Lessee and ending when
the Equipment is returned to the Lessor or its designee following termination as
provided herein. If during that period the Equipment suffers any casualty loss,
the Lessee will notify the Lessor in writing within five days following the
casualty loss. On demand by the Lessor, the Lessee will:

(1) If the damage constituting the casualty loss is repairable, repair the
Equipment to the condition in which the Equipment is required to be maintained
under this Agreement;

(2) If the damaged Equipment is not repairable, replace the Equipment at the
Lessee's sole expense with like Equipment approved by the Lessor and take all
actions and make all payments that may be required to vest in the Lessor title
to the replacement Equipment, free and clear of all liens, encumbrances, or
security interests; or

(3) Pay to the Lessor the casualty value (as defined below) and all other
amounts then due under this Agreement.

"Casualty value" is, at any given date, the stipulated loss value as shown on
the applicable Schedule to each Supplement, and is computed to be the sum of:

(1) The discounted value at that time, of the aggregate unpaid monthly rent
payments to be paid through the then remaining term of this Agreement,
discounting that amount at an annual discount rate of 8 percent; and

(2) The Lessor's reasonable estimate, at that time, of the fair market value of
the Equipment at the end of the term of this Agreement, discounted at an annual
discount rate of 8 percent.

11. INSURANCE. Lessee shall maintain at all times on the equipment, at Lessee's
expense, property damage, direct damage, and liability insurance in such
amounts, against such risks, and in such form and with such insurers as shall be
satisfactory to Lessor. The required insurance shall be as specified in the
applicable Supplement; provided, however, that the amount of direct damage
insurance shall not on any date be less than the greater of the full replacement
value or the Stipulated Loss Value of the Equipment as of such date. Each
insurance policy will name Lessor as additional insured and as loss payee, and
shall contain a clause requiring the insurer to give to Lessor at least 30 days
prior written notice of any alteration in or cancellation of the terms of such
policy. Lessee shall furnish to Lessor a certificate or other evidence
satisfactory to Lessor that such insurance coverage is in effect, provided,
however, that Lessor shall be under no duty to ascertain the existence or
adequacy of such insurance.

12. TAXES; INDEMNITY. Lessee agrees to pay, and to indemnify and hold Lessor
harmless from, all license fees, assessments, and sales, use, property, excise,
and other taxes and charges (other than federal income taxes and taxes imposed
by any other jurisdiction which are based on, or measured by, the net income of
Lessor for reasons other than the ownership or leasing of the Equipment in such
jurisdiction) imposed upon or with respect to (a) the Equipment or any part
thereof arising out of or in connection with the shipment of Equipment or the
possession, ownership, use or operation thereof, or (b) this Agreement or the
consummation of the transactions herein contemplated. The agreements and
indemnities contained in this paragraph shall survive the expiration or earlier
termination of this Agreement.

13.  DEPRECIATION INDEMNITY.

(1) Lessor, as the owner of the Equipment, shall be entitled to such deductions,
credits and other benefits as are provided by the Internal Revenue Code of 1986,
as amended (IRC), to an owner of property.

(2) Lessee agrees that neither it nor any corporation controlled by it, in
control of it, or under common control with it, directly or indirectly, will at
any time take any action or file any returns or other documents inconsistent
with the foregoing and that each of such corporations will file such returns,
take such action, and execute such documents as may be reasonable and necessary
to facilitate accomplishment of the intent thereof. Lessee agrees to copy and
make available for inspection and copying by Lessor such records as will enable
Lessor to determine whether it is entitled to the benefit of any amortization or
depreciation deduction, or other deduction or credit which may be available from
time to time with respect to the Equipment.

(3) If Lessor, under any circumstances or for any reason whatsoever, except for
acts of Lessor or future changes in the IRC, shall lose or shall not have the
right to claim or there shall be disallowed or recaptured, all or any portion of
the federal tax depreciation deductions with respect to any item of Equipment
based on depreciation of the Lessor's full cost of such item of Equipment and
computed on the basis of a method of depreciation provided by the IRC as Lessor
in its complete discretion may select, then Lessee agrees to pay Lessor upon
demand an amount which, after deduction of all taxes required to be paid by
Lessor in respect of the receipt thereof under the laws of any federal, state,
or local government or taxing authority of the United States or of any taxing
authority or government subsidiary of any foreign country, shall be equal to the
sum of (i) an amount equal to the additional income taxes paid or payable by
Lessor in consequence of the failure to obtain the benefit of a depreciation
deduction, and (ii) any interest and/or penalty which may be assessed in
connection with any of the foregoing.

The provisions of this paragraph shall survive the expiration or earlier
termination of this Agreement.

14. INDEMNIFICATION COVENANT. The Lessee agrees to indemnify, reimburse, and
hold harmless each indemnitee from and against all claims, damages, losses,
liabilities, demands, suits, judgments, causes of action, civil and criminal
legal proceedings, penalties, fines and other sanctions, and any attorney fees
and other reasonable costs and expenses, arising or imposed with or without the
Lessor's fault or negligence (whether active or passive) or under the doctrine
of strict liability (collectively, "claims"), relating to or arising in any
manner out of:

(1) This Agreement or the breach of any representation, warranty, or covenant
made by the Lessee under this Agreement;

(2) Manufacture, purchase, lease, delivery, nondelivery, acceptance, rejection,
ownership, possession, use, operation, return, or disposition of the Equipment;

(3) The Equipment's condition or any discoverable or nondiscoverable defect in
it arising from its design, testing, or construction; any article used in the
Equipment; or any maintenance, service, or repair, whether or not the Equipment
is in the Lessee's possession and regardless of where the Equipment is located;
or

(4) Any transaction, approval, or document contemplated by this Agreement.

The Lessee waives and releases each indemnitee from any existing or future
claims in any way connected with injury to or death of the Lessee's personnel,
loss or damage of the Lessee's property, or loss of use of any property, which
may:

(a) Result from or arise in any manner out of the ownership, leasing, condition,
use, or operation of the Equipment; or

(b) Be caused by any defect in the Equipment; its design, testing, or
construction; any article used in the Equipment; or any maintenance, service, or
repair, whether or not the Equipment is in the Lessee's possession and
regardless of where the Equipment is located.

The indemnities described in this clause will continue in full force and effect
notwithstanding the expiration or other termination of this Agreement and are
expressly made for the benefit and will be enforceable by each indemnitee.

15. COVENANT TO KEEP FREE OF LIENS. The Lessee will not directly or indirectly
create, incur, assume, or suffer to exist any lien on the Equipment, its title,
or any interest therein, except for:

(1)  The respective rights of the Lessor and Lessee under this Agreement;

(2) Liens granted by the Lessor with respect to the Equipment;

(3) Liens for taxes either not yet due or being contested in good faith by the
Lessee as long as adequate reserves are maintained with respect to those liens
and the Equipment is not, in the Lessor's reasonable opinion, in danger of being
sold, confiscated, forfeited, or seized as a result of the liens; and

(4) Inchoate materialmen's, mechanics', workmen's, repairmen's, employees', or
other like liens arising in the ordinary course of business, which either are
not delinquent or are being contested in good faith by the Lessee, as long as
the Equipment is not, in the Lessor's reasonable opinion, in danger of being
sold, confiscated, forfeited, or seized as a result of the liens.

The Lessee will promptly, at its sole expense, take any action that may be
necessary to discharge any lien except for the liens referred to in paragraphs
(1) and (2) arising at any time with respect to the Equipment.

16. WAIVER OF CONSEQUENTIAL DAMAGES. The Lessee will not be entitled to recover,
and hereby disclaims and waives any right that it may otherwise have to recover,
consequential damages as a result of any breach or alleged breach by the Lessor
of any of the agreements, representations, or warranties of the Lessor contained
in this Agreement.

<PAGE>   3

17. LESSOR'S RIGHT TO PERFORM. If Lessee fails to make any payment required to
be made hereunder or fails to comply with any other provisions of this
Agreement, Lessor may make such payment or comply with such provisions, and the
amount of such payment and the reasonable expenses of Lessor incurred in
connection with such payment or compliance, shall be immediately payable by
Lessee to Lessor.

18. DEFAULT. Any one of the following occurrences shall, in the Lessor's sole
discretion, constitute a material default by Lessee of this Agreement:

(1) Failure by Lessee to make any payment of rent or other amount owing
hereunder when due;

(2) Failure of Lessee to perform or observe any other covenant, agreement, or
condition hereunder;

(3) Any representation or warranty made by Lessee herein or in any document or
certificate furnished to Lessor in connection herewith shall prove to be
incorrect at any time;

(4) Lessee shall become insolvent or make an assignment for the benefit of
creditors or consent to the appointment of a trustee or receiver, or a trustee
or receiver shall be appointed for Lessee or for a substantial part of its
property or for the Equipment, or reorganization, arrangement, insolvency,
dissolution, or liquidation proceedings shall be instituted by or against
Lessee.

In such event, Lessor may declare this Agreement to be in default, and may
proceed in accordance with the provisions of Paragraph 19 hereof.

19.  REMEDIES.

(1) Remedies. On the occurrence of any event of default and at any time
afterwards as long as it continues, the Lessor may, at its option and without
notice to the Lessee, declare this Agreement to be in default and exercise one
or more of the following remedies:

(a) Declare the then Stipulated Loss Value immediately due and payable with
respect to any or all items of Equipment without notice or demand to Lessee;

(b) Sue for and recover all rent and other payments, then accrued or thereafter
accruing, with respect to any or all items of Equipment;

(c) Take possession of and render unusable any or all items of Equipment,
without demand or notice, wherever same may be located, without any court order
or other process of law and without liability for any damages occasioned by such
taking of possession (any such taking of possession will not constitute a
termination of this lease as to any or all items of Equipment unless Lessor
expressly so notifies Lessee in writing);

(d) Require Lessee to assemble any or all items of Equipment at the original
equipment location, such location to which the equipment may have been moved
with the prior written consent of Lessor, or such other location in reasonable
proximity to either of the foregoing as Lessor designates;

(e) Sell or otherwise dispose of any or all items of Equipment whether or not in
Lessor's possession, in a commercially reasonable manner at public or private
sale and with or without notice to Lessee and apply the net proceeds of such
sale, after deducting all costs of such sale, including, but not limited to,
costs of transportation, repossession, storage, refurbishing, advertising and
broker's fees, to the obligations of Lessee thereunder with Lessee remaining
liable for any deficiency and with any excess being retained by Lessor;

(f) Retain any repossessed items of Equipment and credit the reasonable value
thereof, after deducting all such sales related costs incurred to the date of
crediting, to the obligations of Lessee hereunder with Lessee remaining liable
for any deficiency and with Lessor having no obligation to reimburse Lessee on
account of any excess of such reasonable value over such obligations;

(g) Terminate this lease as to any or all items of Equipment;

(h) Utilize any other remedy available to Lessor at law or in equity.

In each case, plus the amount, if any, as reasonably calculated by the Lessor,
required for the Lessor to receive the same after tax economic return from this
lease that the Lessor would have received if the Lessee had performed all of its
obligations under this Agreement through the end of the lease term.

In addition to the foregoing, the Lessee will be liable for interest on unpaid
amounts at an annual interest rate of 18 percent from the date the same became
due until payment in full, and for all reasonable legal fees and other
reasonable costs and expenses incurred by the Lessor in connection with the
occurrence of any event of default or the exercise of its remedies.

A termination hereunder will occur only upon written notice by Lessor to Lessee
and only with respect to such items of Equipment as to which Lessor specifically
elects to terminate in such notice. Except as to such items with respect to
which there is a termination, this lease will remain in full force and effect
and Lessee will be and remain liable for the full performance of all its
obligations hereunder.

No right or remedy conferred herein is exclusive of any right or remedy
conferred herein or by law; but all such rights and remedies are cumulative of
every other right or remedy conferred hereunder or at law or in equity, by
statute or otherwise, and may be exercised concurrently or separately from time
to time.



(2) In effecting any repossession, the Lessor and its representatives and
agents, to the extent permitted by law, will:

(a) Have the right to enter on any premises where the Lessor reasonably believes
the Equipment is located;

(b) Not be liable, in conversion or otherwise, for the taking of any personal
property of the Lessee that is in or attached to the repossessed Equipment as
long as the Lessor promptly returns that property to the Lessee;

(c) Not be liable in any manner for any damage to any of the Lessee's property
in repossessing and holding the Equipment, except for damage caused by the
Lessor's gross negligence or willful misconduct; and

(d) Have the right to maintain possession of and dispose of the Equipment on any
premises owned by the Lessee or under the Lessee's control.

If reasonably required by the Lessor, the Lessee, at its sole expense, will
assemble and make the Equipment available at a place designated by the Lessor.
If the Equipment is returned to or repossessed by the Lessor, any rights in any
express or implied warranty previously assigned to the Lessee or otherwise held
by it will without further act, notice, or writing be assigned or reassigned to
the Lessor, if assignable. The Lessee will be liable to the Lessor for all
reasonable expenses, costs, and fees incurred in (1) repossessing, storing,
preserving, shipping, maintaining, repairing, and refurbishing the Equipment to
the condition required by this Agreement; and (2) preparing the Equipment for
sale or lease, advertising the sale or lease, and selling or re-letting the
Equipment.

No remedy referred to in this paragraph is intended to be exclusive, but, to the
extent permissible under applicable law, each will be cumulative and operate in
addition to any other remedy referred to above or otherwise available to the
Lessor at law or in equity. The exercise or beginning of exercise by the Lessor
of any one or more of its remedies will not preclude the simultaneous or later
exercise by the Lessor of any other remedies.

No express or implied waiver by the Lessor of any default or event of default
will be construed as a waiver of any future or subsequent default or event of
default.

20. CONDITIONS PRECEDENT. The obligation of Lessor contained in paragraph 1 of
this Agreement shall be subject to the following conditions precedent:

(1) There shall have occurred no material adverse change in the business or the
financial condition of Lessee from the date hereof until the Commencement Date
of any Supplement;

(2) Lessee shall have furnished Lessor with a certificate or other evidence
satisfactory to Lessor that insurance coverage as required by this Agreement is
in effect as to the item of Equipment desired to be leased;

(3) Unless specifically waived by Lessor, Lessee shall have furnished Lessor
opinions of counsel as to the Agreement, in form and substance acceptable to
Lessor;

(4) Unless specifically waived by Lessor, Lessee shall have furnished Lessor
waivers, in form and substance acceptable to Lessor, of all rights in or to the
Equipment of any landlord or mortgagee of any real property upon which the
Equipment is or is to be situated; and

(5) All other instruments and legal and corporate proceedings in connection with
the transactions contemplated by this Agreement shall be satisfactory in form
and substance to Lessor, and counsel to Lessor shall have received copies of all
documents which it may have requested in connection therewith.

If any of the above conditions is not satisfied at the time Lessee submits any
Supplement, Lessor, in its sole discretion, shall have no obligation under this
Agreement to lease the Equipment covered thereby to Lessee.

21. FINANCIALS. Lessee agrees that for so long as any item of Equipment shall be
leased under the Agreement, Lessee will deliver or cause to be delivered to
Lessor (a) as soon as practicable, and in any event within 60 days after the end
of each quarterly period (other than the fourth quarterly period) together with
the related statements of income and expense for such quarterly period all in
reasonable detail prepared in accordance with generally accepted accounting
principles consistently applied throughout the period involved and certified by
Lessee's chief financial officer; and (b) as soon as practicable, and in any
event within 120 days after the close of each fiscal year of Lessee, the audited
balance sheet of Lessee as of the end of such fiscal year together with the
related statements of income and surplus for such fiscal year all in reasonable
detail, prepared in accordance with generally accepted accounting principles
consistently applied throughout the period involved and certified by an
independent certified public accountant acceptable to Lessor.

22. REPRESENTATIONS, WARRANTIES AND COVENANTS. As a material inducement to
Lessor entering into this Agreement with Lessee, Lessee represents, warrants,
and covenants as follows:

(1) If Lessee is a corporation, or a limited liability company, Lessee is duly
organized and validly existing and is in good standing under the laws of the
state of its incorporation, and is duly qualified and licensed to do business as
a foreign corporation and is in good standing in those jurisdictions where such
qualifications are necessary to authorize Lessee to carry on its present
business and operations, and to own its properties or to perform its obligations
thereunder;

(2) If Lessee is a partnership, Lessee is duly organized and validly existing
under the partnership laws of its state of domicile and is duly authorized in
any foreign jurisdiction where such qualification is necessary to authorize
Lessee to carry on its present business and operations and to own its properties
and to perform its obligations thereunder;

(3) Lessee has full power, authority, and legal right to execute, deliver, and
carry out as Lessee the terms and provisions of this Agreement, and any other
necessary documents in connection with this transaction;

(4) If Lessee is a corporation, Lessee's execution, delivery, and performance of
this Agreement and the other documents and agreements referred to herein, and
the performance of its obligations under this Agreement have all been authorized
by all necessary corporate action, do not require the approval or consent of
stockholders, or of any trustee or holders of any indebtedness or obligation of
Lessee and will not violate any law, governmental rule, regulation or order
binding upon Lessee or any provision of any indenture, mortgage, contract, or
other agreement to which Lessee is a party or by which it is bound or to which
it is subject, and will not violate any provision of the Certificate or Articles
of Incorporation, Bylaws, or any preferred stock agreement of Lessee;

(5) If Lessee is a partnership, Lessee's execution, delivery and performance of
this Agreement and the other documents and agreements referred to herein, and
the performance of its obligations under this Agreement have all been authorized
by all necessary partnership actions;

(6) There are no pending or threatened investigations, actions, or proceedings
before any court or administrative agency or other tribunal body, which seek to
question or set aside any of the transactions contemplated by this Agreement, or
which, if adversely determined, would materially affect the condition, business,
or operation of Lessee;

(7) Lessee is not in default in any material manner in the payment or
performance of any of its obligations or in the performance of any contract,
agreement, or other instrument to which it is a party or by which it or any of
its assets may be bound;

(8) The balance sheet of Lessee as of the end of its most recent fiscal year and
the related profit and loss statement of the Lessee for the fiscal year ended on
said date, including the related schedules and notes, together with the report
of an independent certified public accountant, heretofore delivered to Lessor,
are all true and correct and present fairly (I) the financial position of Lessee
as of the date of said balance sheet and (ii) the results of the operations of
Lessee for said fiscal year;

(9) All proceedings required to be taken to authorize the lease of the Equipment
from Lessor and to protect Lessor's interest in such Equipment, free and clear
of all liens and encumbrances whatsoever, have been taken;

(10) Lessee has no significant liabilities (contingent or otherwise) which are
not disclosed by or reserved against the financial statements referred to in (8)
above;

(11) All the financial statements referred to in (8) above have been prepared in
accordance with generally accepted accounting principles and practices applied
on a basis consistently maintained throughout the period involved;

(12) There has been no change which would have a material adverse effect on the
business or financial condition of Lessee from that set forth in the balance
sheet referred to in (8) above;

(13) No authorization, consent, approval, license, exemption of or filing or
registration with any court, governmental unit or department, commission, board,
bureau, agency, instrumentality or the like is required or necessary for the
valid execution and delivery of the Agreement, any bill of sale, and the other
documents and agreements referred to herein;

(14) This Master Lease, the Supplements, and any accompanying documents, having
been duly authorized, executed and delivered to Lessor, constitute legal, valid
and binding obligations of Lessee, enforceable against Lessee in accordance with
the terms hereof except as such terms may be limited by bankruptcy, insolvency,
or similar laws affecting the enforcement of creditor's rights generally;

<PAGE>   4

(15) Each item of Equipment will constitute unused "new Section 38 property" in
the hands of Lessor within the meaning of the Internal Revenue Code of 1986, as
amended, on the Commencement Date specified in the Supplement pertaining to said
item of Equipment;

(16) The Equipment is personal property and neither real property nor a fixture;

(17) The Equipment will be used for commercial operations only, not for
personal, family, or household purposes.

(18) As of the Commencement Date of each item of Equipment, a reasonable
estimate of the estimated fair market value of such item of Equipment at the end
of the lease term thereof will be at least 20% of the Lessor's cost therefor
(without including in such value any increase or decrease for inflation or
deflation, and after subtracting from such value any cost for removal and
delivery of possession of Equipment to Lessor at the end of the lease term
thereof); and

(19) As of the Commencement Date of each item of Equipment, a reasonable
estimate of the estimated useful life of such item of Equipment at the end of
the original lease term will be at least two years beyond the lease term
thereof.

23. PURCHASE OPTION. Lessor and Lessee hereby agree that so long as no default
shall have occurred and be continuing, Lessee shall have the option (and Lessor
shall have the right to obligate Lessee) to purchase the Equipment at the
expiration of the lease term for the purchase option price set forth in the
applicable Supplement. In order to exercise the option with respect to all of
the Equipment, Lessee must give Lessor written notice at least 90 days prior to
the expiration of the lease term with respect thereto, and remit the purchase
price in cash to Lessor or its assigns on or before said expiration date. After
receipt of the purchase price in accordance with this paragraph, Lessor will
transfer to Lessee all of its right, title and interest in the Equipment
purchased, as-is, where-is, without recourse, representation or warranty of any
kind, express or implied. Fair Market Sales Value for the purpose of this
paragraph only shall be determined on the basis of and be equal in amount to the
value that would be obtained in a transaction between an informed and willing
buyer and an informed and willing seller, and the cost of moving the Equipment
from the location of current use shall not be a deduction from such value.

24. CHOICE OF LAW. The rights and liabilities of the parties under this
Agreement, and each Supplement, shall be interpreted, enforced and governed in
all respects by the laws of the State of California. Lessee hereby consents and
subjects itself to the jurisdiction of every local, state, and federal court
within the State of California, and agrees that except as otherwise required by
law, Lessee shall never file or maintain any action or proceeding in connection
with this Agreement, or any Supplement in any court outside the State of
California. Lessee hereby agrees that service of process in connection with any
such action upon Lessee may be in the manner provided by the laws of the State
of California.

25. ATTORNEY FEES AND COSTS. Lessee will pay or reimburse Lessor for all costs
and expenses, including repossession, equipment disposition and court costs and
attorney's fees (including a reasonable fee for services of salaried counsel
employed by Lessor), not offset against amounts recovered or credited as
contemplated in paragraph 19, incurred by Lessor in exercising any of its rights
or remedies thereunder or enforcing any of the terms, conditions or provisions
hereof. This obligation includes the payment or reimbursement of all such
amounts whether an action is ultimately filed and whether an action filed is
ultimately dismissed.

26. HEADINGS FOR CONVENIENCE ONLY. The headings for the paragraphs and
provisions in this Master Lease, as well as the other documents constituting the
Agreement, are intended solely for convenience of reference and are not intended
nor shall they be used to construe, explain, modify or place any meaning upon
any provisions hereof.

27. MODIFICATION. Neither this Master Lease or any other document or Supplement
constituting the Agreement can be modified or amended except by written
agreement signed and dated by both Lessor and Lessee.

28. COUNTERPARTS. This Master Lease and any other document or Supplement
constituting the Agreement may be executed in any number of counterparts. Any
document executed in counterparts shall remain one document. Each counterpart is
an original instrument.

29. PROVISIONS SEVERABLE. Should any provision of the Agreement be determined to
be invalid or unenforceable, such invalidity or unenforceability shall not
affect the remaining provisions hereof.

30. ENTIRE AGREEMENT. This Master Lease, the Supplements, and all other
documents constituting the Agreement constitute the entire agreement between the
parties and no other representation or statements shall be deemed binding, nor
shall there be any reliance by either Lessor or Lessee upon any representations,
agreements, statements, promises, understandings, or inducements made which are
not embodied in the written Agreement.

Executed on November 1, 1999, at Cupertino, California.




                                By execution hereof, the undersigned hereby
                                certifies that he has read this Agreement, and
                                that he is duly authorized to execute this
                                Master Equipment Lease on behalf of Lessee.



                                LESSEE:
                                PACKETEER, INC.,
                                a Delaware corporation

                                By:  /s/ DAVID YNTEMA
                                   -----------------------------------
                                Name     David Yntema
                                    ----------------------------------
                                Title    Chief Financial Officer
                                     ---------------------------------


                                LESSOR:
                                PENTECH FINANCIAL SERVICES, INC.,
                                a California corporation

                                By:  /s/ BENJAMIN E. MILLERBIS
                                   -----------------------------------
                                         Benjamin E. Millerbis

                                Title:  President

<PAGE>   5

                        PENTECH FINANCIAL SERVICES, INC.

                        MASTER EQUIPMENT LEASE COMMITMENT

        Subject to the conditions set forth in this Master Equipment Lease
Commitment ("Commitment"), the following leasing transaction is agreed to by and
between PENTECH FINANCIAL SERVICES, INC., a California corporation ("Lessor")
and PACKETEER, INC., a Delaware corporation ("Lessee"), in connection with the
terms and conditions of Master Equipment Lease No. 300311 (the "Lease").

        1. MASTER EQUIPMENT LEASE with effective date of November 1, 1999.

        2. EQUIPMENT (all Equipment is to be acceptable to Lessor): Computers,
routers, hubs and software and other equipment to be approved by Lessor. A
percentage equal to 25% of the line amount but not more than 25% of any
individual schedule may be used for "soft cost" exclusions listed below.

        Exclusions: Custom use equipment, installation and delivery costs,
        purchase tax, tooling equipment, tenant improvements, software and items
        generally considered fungible or expendable.

        3. COMMITMENT AMOUNT. $1,500,000

        4. LEASE SUPPLEMENTS. This is a Master Equipment Lease transaction
whereby Supplements may be funded as Equipment is delivered. Supplements
scheduling Equipment to be subject to the Lease will each be for the term and on
the conditions set out herein. No individual Supplement shall be for less than
$50,000.

        5. TERM. Each Supplement under the Lease will be for an initial term of
48 months commencing on the first day of the calendar month following delivery
and acceptance of the Equipment on the Supplement.

        6. MONTHLY RENT PAYMENT: 2.491% (.02491) of original Equipment cost,
payable monthly in advance.

        7. COMMENCEMENT DATE. Monthly rent for each Supplement will commence on
the first day of the calendar month following delivery and acceptance of the
Equipment on the Supplement.

        8. INTERIM RENT. Interim rent will be charged for the period commencing
on delivery and acceptance of the Equipment on any particular Supplement and
ending the last day in that month, and will be the daily equivalent of the
Monthly Rent Payment, computed on a thirty (30) day month.

        9. COMMITMENT EXPIRATION DATE. November 30, 2000.

        Lessee acknowledges that Lessor will have no further obligations
        hereunder as to any item of Equipment not included on any Supplement
        under the Lease after the Commitment Expiration Date.



                                       1
<PAGE>   6

        10. RATE ADJUSTMENT. The Monthly Lease Rate Factor will be indexed to
the thirty (30) day London Inter Bank Offer Rate ("LIBOR") ("the "Index
Instrument") which on the date of the proposal was 4.92% (Wall Street Journal
dated May 27, 1999). The Monthly Lease Rate Factor shall be adjusted to provide
for any increase or decrease, with a floor of 4.92%. At the Commencement Date of
each Supplement, the Monthly Lease Rate Factor shall be fixed for the initial
term of such Supplement.

        11. DOCUMENTATION. Prior to Lessor issuing a purchase order for any item
of Equipment, Lessee will comply with, procure and/or execute, have executed,
acknowledge, have acknowledged, deliver to Lessor, record and file any
documents, or produce such evidence, facts or figures as set forth in Exhibit A
accompanying this Commitment, and will do likewise as to any further documents,
evidence, facts or figures that Lessor and its counsel may now or hereafter deem
necessary or advisable to protect Lessor's rights under the Lease and
Supplements and its interest in the Equipment. Lessee will pay as directed by
Lessor, or will reimburse Lessor on demand, for all costs, including legal,
appraisal, due diligence, title and lien searches, UCC recording, documentation
and other charges incurred by Lessor in connection with the Lease and
Supplements. The form, substance and sufficiency of all documents employed in
documenting the Lease and Supplements contemplated hereby must be acceptable to
Lessor and its counsel.

        12. TERMINATION. Lessor, in its sole discretion, retains the right to
delay or to cancel lease funding commitments if adverse change in Lessee's
financial condition occurs which has, in Lessor's sole discretion, impacted or
which may impact Lessee's credit capability. Lessor may, at its option,
terminate its obligation to Lessee hereunder (a) at or subsequent to the
Commitment Expiration Date; (b) upon the advent of a material adverse change, in
Lessor's sole discretion, in Lessee's financial condition or Lessee's probable
ability to perform its obligations under the Lease and Supplements; (c) if the
Lease, any Supplement, or any other agreement under which Lessee has the
obligation to Lessor is in default or an event which would constitute a default
under the Lease, any Supplement or any other agreement has occurred and is
continuing; or (d) with respect to any item if the shipping costs, installation
charges and design costs applicable thereto exceed more than fifteen percent
(15%) of its total cost to Lessor. Termination shall occur upon Lessor's giving
three (3) days written notice of termination to Lessee. In the event Lessor
elects to terminate its obligation to Lessee as described herein, Lessee will
purchase all of Lessor's right, title and interest in any Equipment which has
not yet been included on any Acceptance Supplement and thus not subject to the
Lease and Supplements thereto for the amount Lessor has paid or has become
obligated to pay on account thereof, plus interest on amounts actually paid at
the rate of eighteen percent (18%) per annum, or such greater or lesser contract
rate as may be applicable to Lessor, from the date paid to the date of Lessee's
repurchase. Lessee acknowledges that Lessee will, upon demand by Lessor, pay
directly to the appropriate party the amount of any invoice which may be
furnished to Lessor subsequent to inclusion of the applicable item of Equipment
on a Supplement.

        ACCEPTED AND AGREED to as of November 1, 1999.

LESSOR:                                 LESSEE:

PENTECH FINANCIAL SERVICES, INC.        PACKETEER, INC.
a California corporation                a Delaware corporation

By:     /s/ BENJAMIN E. MILLERBIS       By:    /s/ DAVID YNTEMA
        -------------------------              ---------------------------
        Benjamin E. Millerbis           Name   David Yntema
Its:    President                              ---------------------------
                                        Its:   Chief Financial Officer
                                               ---------------------------

                                       2
<PAGE>   7


                 EXHIBIT A TO MASTER EQUIPMENT LEASE COMMITMENT

These provisions hereby become part of the Equipment Lease Commitment for Master
Equipment Lease No. 300311 with effective date of Novemer 1, 1999, between
PENTECH FINANCIAL SERVICES, INC., Lessor, and PACKETEER, INC., Lessee.

In addition to the terms of the Master Equipment Lease Agreement (the
"Agreement"), Lessee further agrees to the following additional provisions:

1.      UCC SEARCH/RELEASES
        The Lessor may search all public records and filings of Lessee to locate
        and identify any conflicting liens against the Equipment. UCC releases
        from any intervening parties holding a security interest in said
        Equipment shall be required prior to funding any Supplement.

2.      TYPE OF LEASE
        This is a net lease transaction whereby maintenance, insurance, property
        taxes, and all items of a similar nature are solely for the account of
        the Lessee.

3.      EXPENSES
        All expenses associated with the lease transaction contemplated hereby
        including, but not limited to, UCC filing fees and searches,
        documentation costs, legal expenses, and equipment verification costs
        are solely for the account of the Lessee.

4.      LEASE DEPOSIT
        Lessee shall provide Lessor a Lease Deposit in the amount of $15,000.00,
        receipt of which is hereby acknowledged. This deposit shall be applied
        to Lessee's first monthly rent payment on a prorated basis for each
        Supplement funded under the Lease. The balance of any unapplied Lease
        Deposit as of the Commitment Expiration Date shall be deemed to have
        been earned by Lessor as of that date.

5.      COMMITMENT EXPIRATION
        The Commitment Expiration Date may be extended, in Lessor's sole
        discretion, upon review by Lessor of the Lessee's then current financial
        condition. Lessee agrees to provide Lessor such financial and other
        information as Lessor may reasonably request to evaluate Lessee's
        financial condition for purposes of granting such extension.

                ADDITIONAL EQUIPMENT LEASE COMMITMENT PROVISIONS:

A.      QUARTERLY FINANCIAL STATEMENTS
        Lessee agrees that for so long as any item of Equipment shall be leased
        under this Agreement, Lessee will deliver or cause to be delivered to
        Lessor (a) as soon as practicable, and in any event within 60 days after
        the end of each quarterly period (other than the fourth quarterly
        period) together with the related statements of income and expense for
        such quarterly period all in reasonable detail prepared in accordance
        with generally accepted accounting principles consistently applied
        throughout the period involved and certified by Lessee's chief financial
        officer; and (b) as soon as practicable, and in any event within 120
        days after the close of each fiscal year of Lessee, the audited balance
        sheet of Lessee as of the end of such fiscal year together with the
        related statements of income and surplus for such fiscal year all in
        reasonable detail, prepared in accordance with



                                       1
<PAGE>   8

        generally accepted accounting principles consistently applied throughout
        the period involved and certified by an independent certified public
        accountant acceptable to Lessor.

B.      ANNUAL FINANCIAL STATEMENTS
        Lessee agrees to provide Lessor with Lessee's annually audited financial
        statements within 120 days of the close of Lessee's fiscal year end.

C.      ADVANCE PAYMENTS
        The first and last month's rent under any Supplement will be payable
        prior to the Commencement Date of the Supplement.

D.      PURCHASE OPTION
        Lessee shall purchase all but not less than all of the equipment under
        any lease schedule at a price equal to 15% of its original cost at the
        end of the Initial Term ("Purchase Option").

E.      ADVERTISING
        During the term of any schedule or supplement under this Master Lease
        line, Lessor may publish, for the purpose of its own advertising and
        promotion only, via print and/or electronic media, the name and the logo
        of Lessee, together with the total amount of the Master Lease Line.



                                       2


<PAGE>   1
                                                                   EXHIBIT 10.17

                               AMENDMENT TO LEASE



     This Amendment is dated November 1, 1999 for reference purposes and amends
the lease (the Lease) dated August 25, 1997, between Eldon R. Hoffman, Lessor,
and Packeteer, Inc., a Delaware corporation, Lessee, for the premises commonly
known as 10495 De Anza Boulevard, Cupertino, California. (The First Premises)
This Amendment is made upon the basis of the following facts.

     A.   Packeteer and Hoffman entered into the Lease dated August 25, 1997.
The Lease is comprised of the Standard Industrial/Commercial Single-Tenant Lease
- - Net 1990 form published by the American Industrial Real Estate Association, as
Modified on its face and as further modified by the Addendum attached thereto.

     B.   Packeteer desires to lease the premises commonly known as 20600
Mariani Drive, Cupertino, CA, (the Additional Premises) which is comprised of
the first and second floors and basement. The second floor and basement of the
premises are currently available, and the first floor of the premises is
expected to become available on April 1, 2000.

     C.   The first floor of the premises will become available on April 1, 2000
only if the current tenant is agreeable to an early termination of its lease.
The first floor shall become a part of the Additional Premises only when
possession can be delivered to Lessee. Lessee shall have the "first right of
refusal" to the first floor which shall be added to the additional premises when
it becomes available during the term of the lease.

     D.   The parties desire to enter into a lease for the Additional Premises
using substantially the same form of lease as for the First Premises.

     Therefore, Lessor and Lessee agree as follows:

     1.   Lessor leases to Lessee, and Lessee leases from Lessor, the Additional
Premises upon the terms and conditions as set forth in the Lease, as modified by
this Amendment. All defined terms shall refer to the Additional Premises except
as otherwise expressed or evident by the context.

     2.   The parties agree that solely for the purpose of determining dates
that refer to the Commencement Date for the First Premises, the Commencement
Date for



                                       1

<PAGE>   2

the First Premises shall be deemed to be December 1, 1997, and that the
Expiration Date is November 30, 2002. The parties acknowledge that Lessee
commenced occupancy thus payment of rent on the First Premises as of December
15, 1997.

     3.   The parties each represent and warrant to the other that there is no
breach of the Lease and no event which would be a breach of the Lease with the
passage of time, and that neither party has a claim against the other, except
as listed below:

          (a)  None

     4.   The term for the second floor and basement of the Additional Premises
shall commence on December 1, 1999, (the Commencement Date) and shall expire on
November 30, 2002. (The Expiration Date). The term for the first floor of the
Additional premises shall commence on April 1, 2000, and shall expire on
November 30, 2002. Lessee is entitled to possession of the second floor and
basement of the Additional Premises on the Commencement Date, and to the first
floor on April 1, 2000, provided that the current tenant agrees to an early
termination as of that date. The provisions of paragraph 50 of the Addendum
relating to the construction of Tenant Improvements are inapplicable since there
will be no demolition or construction by Lessor and no time or monetary
allowance for Tenant Improvements.

     5.   Lessor grants to Lessee Options to extend the term of this lease upon
the terms set forth in paragraph 71 of the Addendum, except that Base Rent shall
refer to the Base Rent set forth in this Amendment and not as set forth in the
Lease. For the purposes of the Options, the First Premises and Additional
Premises shall be construed to be a single Premises. The fair market rental
value as determined under paragraph 74 of the Addendum shall include the First
Premises and Additional Premises as a single Premises, although separate
components for the First Premises, the first and second floors of the Additional
Premises and the basement of the Additional Premises shall be specified.

     6.   Lessee shall not be required to pay a security deposit.

     7.   The monthly Base Rent for the second floor and basement of the
Additional Premises shall be as follows:

          December 1, 1999 through March 31, 2000: $13,265.00

          The monthly Base Rent for both floors and basement of the Additional



                                       2
<PAGE>   3
Premises shall be as follows:

          April 1, 2000 through November 30, 2000: $26,845.20
          December 1, 2000 through November 30, 2001: $28,187.46
          December 1, 2001 through November 30, 2002: $29,596.83

          The Base Rent for the month of December 1999 shall be paid upon
execution of this Amendment.

          The Rent is calculated according to the following table. If the
Commencement Date for the first floor of the Additional Premises is not on
April 1, 2000, the monthly Base Rent shall be adjusted to eliminate the rent
attributable to the first floor until the actual Commencement Date for the
first floor.

<TABLE>
<CAPTION>

                    2nd Floor      Basement      2nd+Base       1st Floor      1st+2nd+B
                    ---------     ---------     ----------      ----------     ----------
<S>                 <C>           <C>           <C>             <C>            <C>
year 1              $10,693.20    $2,572.00     $13,265.20      $13,580.00     $26,845.20
year 2              $11,227.86    $2,700.60     $13,928.46      $14,259.00     $28,187.46
year 3              $11,789.25    $2,835.63     $14,624.88      $14,971.95     $29,596.83
</TABLE>

     8.   Paragraph 52 of the Addendum to the Lease, insofar as it relates to
items specifically applicable the First Premises, such as artificial creeks,
parking lot repair and broken glass, is inapplicable to the Additional
Premises. The express warranty relating to the HVAC contained in paragraph 52
is inapplicable to the Additional Premises. The Jacuzzi in the "Master" office
is inoperable and Lessor assumes no responsibility to make it operable.

     9.   The parties each represent and warrant to the other that they have
not retained any real estate brokers that will be entitled to any compensation
resulting from this Amendment, and that they have reviewed their agreements
with brokers involved in the Lease of the First Premises and have determined
that those brokers are not entitled to compensation as a result of this
Amendment. The reference in Paragraph 68 of the Addendum to a written listing
agreement between Lessor and MacMillian, Moore & Buchanan, Inc. specifically
relates only to the First Premises and not to the Additional Premises.

     10.  Maintenance. Lessee shall pay 100% of the maintenance and other costs
attributable to the Additional Premises as referenced under Article 7 of the
Lease.

     11.  Gas and Electricity. Gas and electricity will not be separately
metered. Subject to the special provisions of paragraph 26, Lessee will pay all
gas and electricity



                                       3



<PAGE>   4
charges.

     12.  Parking. Subject to the special provisions of paragraph 26, Lessee
agrees to pay all of the cost of maintaining and lighting the parking lot.

     13.  Real Property Taxes. Subject to the special provisions of paragraph
26. Lessee shall pay real property taxes attributable to the Additional
Premises as referenced under Article 10 of the Lease.

     14.  Insurance. Lessee will provide and pay for insurance attributable to
the Additional premises pursuant to Article 8 of the Lease.

     15.  HVAC. Lessee shall be responsible for the maintenance of the HVAC.
The parties acknowledge that repairs and replacements are expected to arise
within the next few years.

     16.  Any default under the Lease or this Amendment shall be considered to
be a default under the other. Lessee's right to terminate as provided by
paragraph 63 of the Addendum shall be construed to treat the First Premises and
the Additional Premises as a single Premises at Lessor's election.

     17.  For the purposes of subleasing, notwithstanding the provisions of
paragraph 66, Lessee shall be entitled to 100% of the rent paid by the sublessee
through May 31, 2001. References to 27,000 square feet shall refer to 3,819
square feet for the second floor of the Additional Premises, to 4,850 square
feet for the first floor of the Additional Premises and 5,144 square feet for
the basement of the Additional Premises. The amount of Base Rent being paid by
Lessee for the basement shall be determined according to the table used in the
calculation of the Base Rent.

     18.  The following provisions of the Addendum shall be inapplicable to
this Amendment:

     19.  Paragraph 50, in its entirety relating to Base Rent which is
specifically applicable to the First Premises only.

     20.  Paragraph 51, in its entirety relating to payment of the security
deposit and prepayment of rent which is specifically applicable to the First
Premises only.

     21.  Paragraph 72, in its entirety relating to Lessor's Demolition
(including both demolition and additional construction) which is specifically
applicable to the First


                                       4
<PAGE>   5
Premises only.

     22.  Paragraph 73, in its entirety relating to Tenant improvements by
Lessee which is specifically applicable to the First Premises only. Lessor is
not providing only rent free period for construction by Lessee and is not
providing any allowance for construction by Lessee.

     23.  Paragraph 75, in its entirety relating to Approval of Use by The City
of Cupertino. Lessee has verified what use approvals will be required for the
Additional Premises.

     24.  Paragraph 76, in its entirety relating to Approval of Lease by Wells
Fargo Bank.


     25.  Paragraph 77, in its entirety relating to Signage rights for Any
Mountain, Ltd.

     26.  Special Provisions relating to the first floor of the Premises. Lessor
believes, but cannot guarantee, that the current tenant in the first floor of
the Premises will agree to voluntarily terminate its lease on or before April 1,
2000. The Commencement Date for the first floor shall occur on the first day
of the calendar month following the date upon which the tenant in the first
floor surrenders the first floor to Lessor. During the period between December
1, 1999 and the Commencement Date for the first floor, Lessee will bear all
costs to the extent of 54% of all expenses for the Additional Premises. Lessee
shall be entitled during this period to the use of 12 of the 29 parking spaces
as designated for Lessor.

     Except as modified hereby, the Lease if ratified and confirmed in all
respects.


LESSOR:                            LESSEE:

Eldon R. Hoffman                   Packeteer, Inc.
                                   A Delaware Corporation


/s/  ELDON R. HOFFMAN              By:  /s/ DAVID YNTEMA
     ----------------------             --------------------------
     Eldon R. Hoffman              Its: CFO
     Date: 11-21-99                Date: 11/17/99



                                       5

<PAGE>   1

                                                                    EXHIBIT 23.1


The Board of Directors
Packeteer, Inc.:

We consent to incorporation by reference in the registration statements on Form
S-8 (File number 333-86717) of Packeteer, Inc. of our report dated January 21,
2000, relating to the consolidated balance sheets of Packeteer, Inc. and
subsidiaries as of December 31, 1999 and 1998, and the related consolidated
statements of operations, shareholders' equity, and cash flows for the years
then ended, which report appears in the December 31, 1999, annual report on Form
10-K of Packeteer, Inc.

                                       /s/ KPMG LLP

Mountain View, California
March 23, 2000

<TABLE> <S> <C>

<ARTICLE> 5
<MULTIPLIER> 1,000

<S>                             <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1999             DEC-31-1998
<PERIOD-START>                             JAN-01-1999             JAN-01-1998
<PERIOD-END>                               DEC-31-1999             DEC-31-1998
<CASH>                                          19,554                   2,550
<SECURITIES>                                    45,604                   1,927
<RECEIVABLES>                                    4,148                   3,038
<ALLOWANCES>                                       217                     293
<INVENTORY>                                        523                     188
<CURRENT-ASSETS>                                62,432                   7,573
<PP&E>                                           2,048                   1,339
<DEPRECIATION>                                   1,293                     545
<TOTAL-ASSETS>                                  71,106                   8,570
<CURRENT-LIABILITIES>                           11,147                   4,072
<BONDS>                                            839                     739
                                0                       0
                                          0                      13
<COMMON>                                            27                      10
<OTHER-SE>                                      59,093                   3,736
<TOTAL-LIABILITY-AND-EQUITY>                    71,106                   8,570
<SALES>                                         18,441                   7,230
<TOTAL-REVENUES>                                18,441                   7,230
<CGS>                                            5,286                   2,386
<TOTAL-COSTS>                                    5,286                   2,386
<OTHER-EXPENSES>                                24,925                  13,932
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                 894                     289
<INCOME-PRETAX>                               (10,876)                 (8,799)
<INCOME-TAX>                                         0                       0
<INCOME-CONTINUING>                           (10,876)                 (8,799)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                  (10,876)                 (8,799)
<EPS-BASIC>                                   (0.71)                  (1.54)
<EPS-DILUTED>                                   (0.71)                  (1.54)


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