CABLETRON SYSTEMS INC
10-Q, 1999-07-16
COMPUTER COMMUNICATIONS EQUIPMENT
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   Form 10-Q

                 [X] QUARTERLY REPORT UNDER SECTION 13 OR 15 (d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                   For the Quarterly Period Ended May 31, 1999

             [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                         Commission File Number 1-10228

                             CABLETRON SYSTEMS, INC.
                             -----------------------
             (Exact name of registrant as specified in its charter)



           Delaware                                             04-2797263
 ------------------------------                             ------------------
(State or other jurisdiction of                              (I.R.S. Employer
 incorporation or organization)                             identification no.)


                35 Industrial Way, Rochester, New Hampshire 03867
              (Address of principal executive offices and Zip Code)


      Registrant's telephone number, including area code: (603) 332-9400


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 -

As of June 30, 1999,  there were 174,121,216 shares of the  Registrant's  common
stock outstanding.

This document contains 18 pages

Exhibit index on page 34



<PAGE>


                                      INDEX

                             CABLETRON SYSTEMS, INC.

                                                                          Page
                                                                          ----

   Facing Page                                                              1

   Index                                                                    2

   PART I. FINANCIAL INFORMATION

   Item 1. Consolidated Financial Statements

   Consolidated Balance Sheets - May 31, 1999 (unaudited) and
        February 28, 1999                                                   3

   Consolidated Statements of Operations - Three months ended
        May 31, 1999 and 1998 (unaudited)                                   4

   Consolidated Statements of Cash Flows - Three months ended
        May 31, 1999 and 1998 (unaudited)                                   5

   Notes to Consolidated Financial Statements -
        May 31, 1999 (unaudited)                                         6 - 8

   Item 2. Management's Discussion and Analysis of Financial Condition
        and Results of Operations                                        9 - 14

   PART II. OTHER INFORMATION

   Item 5. Other                                                           15

   Item 6. Exhibits and Reports on Form 8-K                                15

   Signatures                                                              16



<PAGE>


PART I. FINANCIAL INFORMATION

Item 1. Consolidated Financial Statements

CABLETRON SYSTEMS, INC.

CONSOLIDATED BALANCE SHEETS
(in thousands, except per share amounts)
<TABLE>
<CAPTION>


                                                            (unaudited)

                                                           May 31, 1999      February 28, 1999
                                                           ------------      -----------------

<S>                                                      <C>               <C>

Assets
Current Assets:
     Cash and cash equivalents ..........................   $  129,392         $  159,422
     Short-term investments .............................       97,885            113,932
     Accounts receivable, net ...........................      220,605            216,793
     Inventories ........................................      216,657            229,512
     Deferred income taxes ..............................       53,492             60,252
     Prepaid expenses and other assets ..................       59,090             60,510
                                                            ----------         ----------
          Total current assets ..........................      777,121            840,421
                                                            ----------         ----------
Long-term investments ...................................      237,635            202,984
Long-term deferred income taxes .........................      158,375            135,197
Property, plant and equipment, net ......................      172,052            188,479
Intangible assets .......................................      188,547            199,419
                                                            ----------         ----------
           Total assets .................................   $1,533,730         $1,566,500
                                                            ==========         ==========

Liabilities and Stockholders' Equity
Current liabilities:
     Accounts payable ...................................   $  120,377         $  121,580
     Current portion of long-term obligation ............       96,866            129,747
     Accrued expenses ...................................      225,670            218,149
                                                            ----------         ----------
          Total current liabilities .....................      442,913            469,476
Long-term deferred income taxes .........................       12,199              7,191
                                                            ----------         ----------
Total liabilities .......................................      455,112            476,667
                                                            ----------         ----------

Stockholders' equity:
     Preferred stock, $1.00 par value. Authorized
       2,000 shares; none issued ........................         ---                 ---
     Common stock $0.01 par value. Authorized
       240,000 shares; issued and outstanding 173,649
       and 172,184, respectively ........................        1,736              1,722
     Additional paid-in capital .........................      562,775            551,232
     Retained earnings ..................................      513,962            536,487
                                                            ----------         ----------
                                                             1,078,473          1,089,441
     Accumulated other comprehensive income..............          145                392
                                                            ----------         ----------
           Total stockholders' equity ...................    1,078,618          1,089,833
                                                            ----------         ----------
           Total liabilities and stockholders' equity ...   $1,533,730         $1,566,500
                                                            ==========         ==========

          See accompanying notes to consolidated financial statements.
</TABLE>


<PAGE>


CABLETRON SYSTEMS, INC.
CONSOLIDATED STATEMENTS OF OPERATIONS
(in thousands, except per share amounts)
<TABLE>
<CAPTION>

                                                        (unaudited)
                                                     Three Months Ended
                                                           May 31,
                                                    1999            1998
                                                    ----            ----
<S>                                            <C>             <C>

Net sales ....................................   $ 349,533       $ 365,747
Cost of sales ................................     212,615         216,112
                                                 ---------       ---------
     Gross profit ............................     136,918         149,635
                                                 ---------       ---------
Operating expenses:
     Research and development ................      50,797          54,209
     Selling, general and administrative .....     102,362         106,786
     Special charges .........................      23,736         150,000
                                                 ---------       ---------
         Total operating expenses ............     176,895         310,995
                                                 ---------       ---------
         Loss from operations ................     (39,977)       (161,360)

Interest income ..............................       4,068           3,839
                                                 ---------       ---------
         Loss before income tax benefit.......     (35,909)       (157,521)
Income tax benefit ...........................      13,384           2,952
                                                 ---------       ---------
Net loss .....................................   ($ 22,525)      ($154,569)
                                                 =========       =========
Net loss per share:
     Basic ...................................   ($   0.13)      ($   0.95)
                                                 =========       =========
     Diluted .................................   ($   0.13)      ($   0.95)
                                                 =========       =========
Weighted average number of shares outstanding:
     Basic ...................................     173,090         163,394
                                                 =========       =========
     Diluted .................................     173,090         163,394
                                                 =========       =========

</TABLE>





          See accompanying notes to consolidated financial statements.


<PAGE>


CABLETRON SYSTEMS, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)
<TABLE>
<CAPTION>
                                                                             (unaudited)
                                                                          Three Months Ended
                                                                                May 31,
                                                                           1999          1998
                                                                           ----          ----

<S>                                                                   <C>           <C>

Cash flows from operating activities:
   Net loss .........................................................   ($ 22,525)   ($154,569)
   Adjustments to reconcile net loss to net cash used in
      operating activities:
       Depreciation and amortization ................................      28,855       23,246
       Provision for losses on accounts receivable ..................      (1,407)         987
       Deferred taxes ...............................................       2,056        8,117
       Loss on disposal of property .................................          64          399
       Asset impairment .............................................       6,000          ---
       Purchased research and development from acquisition ..........         ---      150,000
       Other ........................................................         603          ---
       Changes in assets and liabilities:
          Accounts receivable .......................................      (6,450)      (9,898)
          Inventories ...............................................      12,237       28,095
          Prepaid expenses and other assets .........................      (1,590)        1,041
          Accounts payable and accrued expenses .....................     (34,063)     (60,642)
          Income taxes payable ......................................         (81)      (3,152)
                                                                        ---------    ---------
      Net cash used in operating activities .........................     (16,301)     (16,376)
                                                                        ---------    ---------
Cash flows from investing activities:
   Capital expenditures .............................................      (9,448)     (13,618)
   Cash received in business acquisition ............................         ---          317
   Purchase of available-for-sale securities ........................     (20,076)     (24,528)
   Purchase of held-to-maturity securities ..........................    (128,465)     (12,282)
   Maturities of marketable securities ..............................     138,888       44,982
                                                                        ---------    ---------
      Net cash used in investing activities .........................     (19,101)      (5,129)
                                                                        ---------    ---------
Cash flows from financing activity:
   Proceeds from stock option exercise ..............................       2,381          972
   Common stock issued to employee stock
     purchase plan ..................................................       3,418          ---
                                                                        ---------    ---------
      Net cash provided by financing activity .......................       5,799          972
                                                                        ---------    ---------
Effect of exchange rate changes on cash .............................        (427)          63
                                                                        ---------    ---------
Net decrease in cash and cash equivalents ...........................     (30,030)     (20,470)
Cash and cash equivalents, beginning of period ......................     159,422      207,078
                                                                        ---------    ---------
Cash and cash equivalents, end of period ............................   $ 129,392    $ 186,608
                                                                        =========    =========
Cash paid during the period for:
   Income taxes .....................................................   $   2,452    $   2,131
                                                                        =========    =========

</TABLE>

          See accompanying notes to consolidated financial statements.


<PAGE>


NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited)


1. Basis of presentation

The accompanying  unaudited consolidated financial statements have been prepared
in  accordance  with the  instructions  to Form 10-Q and Article 2 of Regulation
S-X.  Accordingly,  they do not include  all of the  information  and  footnotes
required by generally  accepted  accounting  principles  for complete  financial
statements.  In the opinion of management,  all adjustments consisting of normal
recurring  accruals  necessary  for  a  fair  presentation  of  the  results  of
operations for the interim  periods  presented have been reflected  herein.  The
results of operations for the interim periods are not necessarily  indicative of
the results to be  expected  for the entire  year.  The  accompanying  financial
statements  should  be read  in  conjunction  with  the  consolidated  financial
statements and footnotes thereto included in the Company's Annual Report on Form
10-K for the year ended February 28, 1999.

2. New Accounting Standards

In December 1998, the AICPA  Accounting  Standards  Executive  Committee  issued
Statement of Position (SOP) 98-9, "Modification of Software Revenue Recognition"
which requires recognition of revenue using specific methods and amends SOP 98-4
(Deferral of the Effective  Date of a Provision of SOP 97-2) and amends  certain
paragraphs  of SOP  97-2.  The  Company  adopted  SOP 98-9  for its year  ending
February 28, 2000,  beginning on March 1, 1999. The adoption of SOP 98-9 did not
have a material  impact on the Company's  results of operations  for the quarter
ended May 31, 1999.

In June 1998, the Financial  Accounting  Standards Board (FASB) issued Financial
Accounting Standard No. 133, "Accounting for Derivative  Instruments and Hedging
Activities" (SFAS 133) which requires companies to record derivative instruments
on the balance sheet as assets or liabilities,  measured at fair value. Gains or
losses  resulting  from  changes  in the  values of those  derivatives  would be
accounted  for depending on the use of the  derivative  and whether it qualifies
for hedge accounting. SFAS 133 will be effective for the Company's first quarter
of fiscal year ending February 28, 2002.  Management is currently evaluating the
potential   effects  of  this   pronouncement  on  its  consolidated   financial
statements.  At  this  time,  management  does  not  expect  the  impact  to  be
significant.

3. Inventories

Inventories consist of:
(in thousands)
                                        May 31,        February 28,
                                         1999             1999
                                       --------        ------------
Raw materials                          $ 63,303          $ 64,603
Work in process                          11,925            16,033
Finished goods                          141,429           148,876
                                       --------          --------
Total inventories                      $216,657          $229,512
                                       ========          ========


4. Business Combination

On March 17, 1998,  Cabletron acquired Yago Systems,  Inc. ("Yago"), a privately
held  manufacturer  of wire speed  routing and layer-4  switching  products  and
solutions. Under the terms of the merger agreement, Cabletron issued 6.0 million
shares of Cabletron common stock to the shareholders of Yago in exchange for all
of the  outstanding  shares of Yago,  not then owned by Cabletron.  Prior to the
closing of the acquisition,  Cabletron held approximately twenty-five percent of
Yago's  capital  stock,  calculated on a fully  diluted  basis.  Cabletron  also
agreed,  pursuant  to the  terms  of the  merger  agreement,  to issue up to 5.5
million shares of Cabletron  common stock to the former  shareholders of Yago in
the event the shares originally issued in the transaction do not attain a market
value of $35 per share eighteen months after the closing of the transaction.
<PAGE>

Cabletron recorded the cost of the acquisition at approximately  $165.7 million,
including direct costs of $2.6 million.  This acquisition has been accounted for
under the purchase method of accounting. The cost represents 11.5 million shares
at $14.1875  per share,  in addition to direct  acquisition  costs.  Based on an
independent  appraisal,  $150.0  million of the purchase  price was allocated to
in-process  research and development.  Accordingly,  Cabletron  recorded special
charges of $150.0 million for this in-process  research and development,  at the
date of  acquisition.  The excess of cost over net assets acquired was allocated
to goodwill and other intangible  assets. A total of $16.3 million was allocated
to  goodwill  and  other   intangible   assets  and  is  being  amortized  on  a
straight-line  basis  over a period  of 5 - 10 years.  Cabletron's  consolidated
results of operations include the operating results of Yago from the acquisition
date.


5. EPS Reconciliation

The basic and  diluted  loss per common  share  computations  for the  Company's
reported  net loss,  at May 31,  1999 and  1998,  used the same  numerators  and
denominators  as the dilutive  securities  outstanding  were not included in the
calculations  of diluted loss per share because the effects were  anti-dilutive.
For May 31,  1999 and 1998,  stock  options to purchase  shares of common  stock
totaling 3.7 million and 0.5 million,  respectively,  were  outstanding but were
not included in the  calculation of diluted  earnings per share since the effect
was anti-dilutive. In addition, the effect of the 5.5 million shares that may be
issued  related to the  acquisition of Yago, as of the end of the quarters ended
May 31, 1999 and 1998, was not included since the effect was anti-dilutive.

6. Comprehensive Income (Loss)

The Company's total comprehensive income (loss) was as follows:
(in thousands)
                                                    Period ended
                                          May 31, 1999         May 31, 1998
                                          ------------         ------------

Net loss                                    ($22,525)            ($154,569)
Other comprehensive income:
   Unrealized gain/(loss) on
      available-for-sale securities             (241)                  ---
   Foreign currency translation
      adjustment                                  (6)                1,348
                                            ---------            ----------
Total comprehensive income (loss)           ($22,772)            ($153,221)
                                            =========            ==========

7. Restructuring Charges

On March 23, 1999, the Company announced a global  restructuring  initiative and
recorded  special  charges of $23.7  million in the quarter  ended May 31, 1999.
Approximately $6.0 million of these charges relate to asset  impairments,  $11.6
million relates to employee termination and severance costs, and $6.1 million to
exit costs.  These charges were  recognized to reflect the planned  closure of a
manufacturing   facility  in  Ohio,  the  planned   closure  or  divestiture  of
approximately  40  sales  offices  worldwide,   the  planned  net  reduction  of
approximately  1,000 individuals of the Company's global workforce,  principally
of manufacturing,  distribution and targeted headcounts impacting most functions
within  the  Company,  the  planned  consolidation  and  outsourcing  of certain
manufacturing  operations  and the write-off of certain assets that would not be
required  subsequent  to the  restructuring.  These  actions are  expected to be
completed  prior to February 28,  2000.  As of May 31,  1999,  approximately  65
employees were terminated and approximately  $0.4 million was paid in accordance
with the Company's  severance  plan. No other  payments or charges were recorded
during the quarter ended May 31, 1999.  $6.0 million of the charges is reflected
as a credit to property, plant and equipment, at May 31, 1999.
<PAGE>

8. Segment and Geographical Information

The  Company  provides  a broad  product  line  and  services  for the  computer
networking  industry.  Substantially  all  revenues  result  from  the  sales of
hardware   and   software   products  and   professional   services   (training,
installation, maintenance, etc.). The Company's reportable segments are based on
geographic  area.  All  intercompany  revenues and expenses  are  eliminated  in
computing  revenues and operating  income.  Operating  income excludes  interest
income,  interest expense, taxes and special charges.  Long-lived assets consist
primarily of the net book value of property,  plant and  equipment and long-term
investments  and the  long-term  investments  were  attributable  to the  United
States. The Other segment includes Canada and Latin America.

All revenue amounts are based on product shipment destination and asset balances
are based on location. The United States operating income amount for the quarter
ended  May  31,  1999  excludes  the  $23.7  million   charge   related  to  the
restructuring  initiative  announced  during  the  quarter.  The  United  States
operating  income in the quarter ended May 31, 1998 excludes the $150.0  million
of special charges related to the Yago acquisition that was completed during the
quarter ended May 31, 1998.

<TABLE>
<CAPTION>


(in thousands)

                                                    Quarter ended May 31,
                                                    1999             1998
                                                    ----             ----
<S>                                         <C>               <C>

Sales to unaffiliated customers (trade):
   United States                              $  240,033        $  196,745
   Europe                                         78,612           120,863
   Pac Rim                                        23,852            35,150
   Other                                           7,036            12,989
                                              ----------        ----------
Total trade sales                             $  349,533        $  365,747
                                              ----------        ----------

Operating income (loss):
   United States                              $      923        $  (28,470)
   Europe                                        (12,615)           16,529
   Pac Rim                                        (3,010)            1,906
   Other                                          (1,539)           (1,325)
                                              -----------       -----------
Total operating income (loss)                 $  (16,241)       $  (11,360)
                                              -----------       -----------

Assets:
   United States                              $  994,069        $  957,376
   Europe                                        462,015           584,558
   Pac Rim                                        50,321            63,010
   Other                                          27,325            48,694
                                              ----------        ----------
Total assets                                  $1,533,730        $1,653,638
                                              ----------        ----------

Long-lived assets:
   United States                              $  383,992        $  335,740
   Europe                                         17,152            20,914
   Pac Rim                                         5,511             6,711
   Other                                           3,032             2,700
                                              ----------        ----------
Total long-lived assets                       $  409,687        $  366,065
                                              ----------        ----------
</TABLE>


<PAGE>

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
        RESULTS OF OPERATIONS

Cabletron  Systems' worldwide net sales in the first quarter of fiscal 2000 (the
three month period ended May 31, 1999) were $349.5  million,  a decrease of 4.4%
from net sales of $365.7 million for the first quarter of fiscal 1999. Net sales
within the United States (domestic) increased $43.3 million or 22.0% from $196.7
million or 53.8% of total net sales in the quarter  ended May 31, 1998 to $240.0
million or 68.7% of total net sales for the quarter ended May 31, 1999. Domestic
net sales  increased due to a higher volume of sales of switched  media products
more than offsetting the decreases in sales of shared media products.  Worldwide
sales of switched products  increased  approximately  $27.2 million,  or 14%, to
$224.7 million in the first quarter of fiscal 2000 compared to $197.5 million in
the first quarter of fiscal 1999. The increase in sales of switched products was
largely due to the SmartSwitch Router products,  technology acquired in the Yago
acquisition,  being sold during the entire first  quarter of fiscal 2000.  These
products were  introduced  during the first quarter of fiscal 1999 and were sold
only during a part of the first quarter of fiscal 1999. This increase was offset
by a $28.5 million  decrease in sales of shared media  products to $26.4 million
in the first  quarter  of fiscal  2000  compared  to $54.9  million  in the same
quarter of fiscal 1999,  a decline of  approximately  52%.  The Company  expects
sales of its shared media  products to continue to decrease  this fiscal year as
customers  continue to migrate from shared media  products to the newer switched
technology  products.  Sales  of  software,   professional  services  and  other
decreased  $14.9 million to $98.4 million in the first quarter of fiscal 2000 as
compared to $113.3  million in the same quarter of fiscal  1999.  An increase in
training and  professional  services  revenues was more than offset by decreased
sales of DNI cards and other miscellaneous products.

International  sales  were  $109.5  million  or 31.3% of net  sales in the first
quarter of fiscal 2000 as  compared to $169.0  million or 46.2% of net sales for
the same period in fiscal 1999, a decrease of $59.5 million or 35%. The decrease
in  international  sales was  largely a result of lower than  expected  sales to
resellers  and  distributors  in Europe and the Pac Rim region.  Sales to Europe
decreased 35.0% and sales to the Pac Rim region  decreased  32.1%. An additional
factor contributing to the decline in international sales was lower purchases by
Compaq for its international locations in the quarter.

Gross  profit as a percentage  of net sales in the first  quarter of fiscal 2000
decreased to 39.2% from 40.9% for the first quarter of fiscal 1999. The decrease
was  primarily  due  to a  $15.2  million  inventory  write-off  related  to the
discontinuations  of several  product  lines.  The  decrease in the gross profit
margin was partially  offset by an increase of domestic sales, at higher margins
than were achieved in the comparable period of the preceding year.

Research and development  expenses in the first quarter of fiscal 2000 decreased
6.3% to $50.8  million from $54.2  million in the first  quarter of fiscal 1999.
The decrease in research and development spending reflected the savings achieved
through the  consolidation of staff from various R&D  departments.  Research and
development spending as a percentage of net sales decreased to 14.5% from 14.8%.

Selling,  general and  administrative  ("SG&A") expenses in the first quarter of
fiscal 2000  decreased  4.1% to $102.4  million from $106.8 million in the first
quarter of fiscal 1999. This slight decrease was a result of limited  reductions
in many expense categories, as the Company's initiatives to organize the Company
along functional lines are implemented.

Special  charges of $23.7  million were  recorded in the first quarter of fiscal
2000, that related to the  restructuring  initiative that was undertaken  during
the quarter.  These charges were  recognized to reflect the planned closure of a
manufacturing   facility  in  Ohio,  the  planned   closure  or  divestiture  of
approximately  40  sales  offices  worldwide,   the  planned  net  reduction  of
approximately  1,000 individuals of the Company's global workforce,  principally
of manufacturing,  distribution and targeted headcounts impacting most functions
within  the  Company,  the  planned  consolidation  and  outsourcing  of certain
manufacturing  operations  and the write-off of certain assets that would not be
required subsequent to the restructuring.  This initiative is intended to reduce
the expense  structure of the Company;  lower cost of goods sold;  increase cash
reserves;  provide  higher  return on assets and  revenue per  employee;  enable
aggressive  asset  reduction  and  consolidation  initiatives  and  increase net
income.  These actions are expected to be completed  prior to February 28, 2000.
There is no assurance that the Company will acheive the intended benefits of the
restructuring initiative.  The benefits are subject to numerous risks that could
impair the  Company's  ability  to  realize  the  expected  benefits  as soon as
expected or ever.  These  risks  include  the  possibility  that the Company may
encounter delays in consolidating certain facilities and in implementing planned
workforce  reductions;  there may be additional unforeseen costs associated with
relocations and employee  severance and the need to maintain  certain  essential
but underutilized  facilities.  These initiatives will require the dedication of
management and other  resources,  which may result in a temporary  disruption of
the Company's  businesss  activities.  Any such disruption could have a material
adverse effect on the Company's results of operations.  During the first quarter
of fiscal  1999,  the Company  recorded a special  charge of $150.0  million for
in-process research and development, in connection with the acquisition of Yago.

Net interest  income in the first quarter of fiscal 2000  increased $0.3 million
to $4.1 million, as compared to $3.8 million in the same quarter of fiscal 1999.
The  increase  reflects  higher cash and  investment  balances  during the first
quarter of fiscal 2000.
<PAGE>

Loss before  income taxes for the first  quarter of fiscal 2000 included a $23.7
million  special charge related to the  restructuring  initiative  compared to a
$150.0  million  special  charge  related to the  acquisition of Yago during the
first quarter of fiscal 1999. Excluding the impact of the special charges,  loss
before income taxes increased from $7.5 million,  in the first quarter of fiscal
1999, to $12.2 million, in the first quarter of fiscal 2000. The additional loss
was  largely  due to lower  sales  being  partially  offset  by  slightly  lower
expenses.

Excluding the effects of special charges,  the Company's  effective tax rate was
34.1% for the quarter ended May 31, 1999 compared to 39.3% for the quarter ended
May 31,  1998.  The Company did not record any tax benefit  associated  with the
$150.0 million of special  charges,  recorded in the quarter ended May 31, 1998,
as these charges related to non-deductible in-process research and development.


Liquidity and Capital Resources

Cash,  cash  equivalents,  short and long-term  investments  decreased to $464.9
million at May 31, 1999 from $476.3  million at February 28, 1999. Net cash used
in operating  activities was $16.3 million in the quarter,  compared to net cash
used by operating activities of $16.4 million in the quarter ended May 31, 1998.
The  change  in net  cash  used by  operating  activities  at May 31,  1999  was
primarily  due to the timing of payments of vendor  invoices.  In the  Company's
acquisition of the networking division (DNPG) of Digital Equipment  Corporation,
the Company granted Digital $302.5 million (which was  subsequently  adjusted to
$288.4  million) of product  credits to be used by Digital to purchase  products
from the Company.  In April 1998, Compaq Computer  Corporation  acquired Digital
and Compaq assumed these product credits. When Digital, or its successor Compaq,
uses product credits,  the Company  recognizes revenue but no cash is exchanged;
rather the  outstanding  product  credits  are  reduced.  This has the effect of
reducing  the  Company's  cash  provided by  operating  activities.  The Company
anticipates  that the  remaining  product  credits will be used up by the end of
September  1999 and as a result  the  Company's  ability to  generate  cash from
operating activities should improve at that time.

Net accounts receivable  increased slightly,  by $3.8 million, to $220.6 million
at May 31, 1999 from  $216.8  million at February  28,  1999.  Average day sales
outstanding were 57 days at both May 31, 1999 and February 28, 1999. The Company
has continued to sell its products to resellers and distributors,  and is in the
process of formalizing  agreements with certain  resellers and distributors that
may have  contractually  stipulated  payment terms.  These terms may have longer
payment  terms than  currently in effect and thus have the effect of  increasing
the Company's days sales  outstanding.  In addition,  when  Digital/Compaq  uses
product credits to purchase products, the Company deems the payment to have been
made  instantaneously.  This has the effect of reducing the Company's days sales
outstanding.  When the product  credits are used up, this will  increase the net
accounts  receivable  with Compaq and put upward  pressure on the Company's days
sales outstanding.

Worldwide  inventories at May 31, 1999 were $216.7 million, or 92 days of sales,
compared to $229.5 million,  or 107 days of sales at the end of the prior fiscal
year. Inventory turnover was 4.0 turns at May 31, 1999, compared to 3.4 turns at
February 28, 1999.  Inventories  decreased and inventory turnover increased as a
result  of  the   Company's   reduced  scope  of  product  lines  and  continued
improvements in inventory controls.

Capital expenditures for the first three months of fiscal 1999 were $3.4 million
compared  to $13.6  million  for the same  period of the  preceding  year.  More
limited  expenditures were required,  in fiscal 2000, as the Company was able to
more  fully  utilize  assets  through  consolidating  its  facilities.   Capital
expenditures  were  principally  related to  purchases  of computer and computer
related equipment and leasehold improvements.

Current  liabilities  at May 31,  1999 were  $442.9  million  compared to $469.5
million at the end of the prior  fiscal  year.  This  decrease was mainly due to
Compaq's use of its product  credits.  The  remaining  product  credits  legally
expire on February 7, 2000, but the Company  anticipates  that they will be used
up by September  1999.  As of May 31,  1999,  $96.9  million of product  credits
remained compared to $129.7 million of product credits at February 28, 1999.

In the opinion of management,  internally  generated  funds from  operations and
existing cash, cash  equivalents and short-term  investments will prove adequate
to support the Company's  working capital and capital  expenditure  requirements
for the next twelve months.
<PAGE>

Yago Systems, Inc.

In connection with the acquisition of YAGO, the Company allocated $150.0 million
of the purchase  price to in-process  research and  development  projects.  This
allocation represents the estimated fair value based on risk-adjusted cash flows
related to the incomplete products. At the date of acquisition,  the development
of these projects had not yet reached technological feasibility and the research
and development ("R&D") in progress had no alternative future uses. Accordingly,
these costs were expensed as of the acquisition date.

The Company  used  independent  third-party  appraisers  to assess and  allocate
values to the in-process  research and development.  The value assigned to these
assets were determined by identifying  significant  research  projects for which
technological  feasibility  had not  been  established,  including  development,
engineering and testing  activities  associated with the  introduction of YAGO's
next-generation switching router family of products and technologies.

At the time of its  acquisition,  YAGO was a development  stage company that had
spent  approximately  $5.6  million on research and  development  focused on the
development of advanced  gigabit  switching  technology.  In fact, all of Yago's
efforts since the company's inception had been directed towards the introduction
of an  advanced  gigabit  layer-2,  layer-3,  and layer-4  switching  and router
product  family.  YAGO  had no  developed  products  or  technology  and had not
generated any revenues as of its acquisition date. At the time, YAGO was testing
the technology related to the MSR8000, its first product to be released, and was
developing its MSR16000/8600  family of products.  These two primary development
efforts were made up of six  significant  research and  development  components,
which were ongoing at the acquisition  date.  These component  efforts  included
continued  MSR8000  development  and testing,  research and  development  of the
MSR2000  (a  desktop  version  of the  MSR8000),  development  of  the  MSR8600,
development of Wide Area Network interfaces for its switching products,  routing
software research and development,  and device management  software research and
development.

At the time of YAGO's  acquisition,  the Company  believed  that the MSR product
family  of  switching  routers  would set a new  standard  for  performance  and
functionality   by   delivering   wire-speed   layer-2,   layer-3   and  layer-4
functionality.  Designed  for the  enterprise  and ISP  backbone  markets,  upon
completion of their  development,  the MSR products were intended to offer large
table capacity, a multi-gigabit non-blocking backplane, low latency and seamless
calling. YAGO also intended to develop its MSR products to be interoperable with
other  standard-based   routers  and  switches.  As  of  the  acquisition  date,
management  expected the development of the MSR product family would be the only
mechanism to fuel YAGO's revenue growth and profitability in the future. Despite
the incomplete state of YAGO's  technology,  the Company felt that the projected
size and growth of the market for the MSR product,  YAGO's demonstrated  promise
in the  development  of the MSR  product  family and the  consideration  paid by
Cabletron's  competitors to acquire  companies  comparable to YAGO all warranted
the consideration paid by Cabletron for YAGO.

The nature of the efforts to develop the  acquired  in-process  technology  into
commercially  viable  products  principally  related  to the  completion  of all
planning,  designing,   prototyping,   high-volume  verification,   and  testing
activities that were necessary to establish that the proposed  technologies  met
their  design  specifications  including  functional,  technical,  and  economic
performance  requirements.  Anticipated  completion  dates for the  projects  in
progress were expected to occur over the two years following the acquisition and
the  Company  expected  to  begin  generating  the  economic  benefits  from the
technologies in the second half of 1998.  Funding for such projects was expected
to be obtained from internally  generated sources.  Expenditures to complete the
MSR technology were expected to total  approximately $10.0 million over such two
year period.

To date,  YAGO's  results  have not  differed  significantly  from the  forecast
assumptions.  YAGO released a fully featured MSR8000 in July 1998. The Company's
R&D expenditures  since the YAGO  acquisition have not differed  materially from
expectations.  The  Company  continues  to work  toward  the  completion  of the
projects  underway at YAGO at the time of the acquisition.  Most of the projects
are on schedule (within 2 to 3 months of planned releases). The risks associated
with these efforts are still considered significant and no assurance can be made
that YAGO's upcoming products will meet market expectations.
<PAGE>

The  value  assigned  to  purchased  in-process  technology  was  determined  by
estimating  the  costs to  develop  the  purchased  in-process  technology  into
commercially  viable products,  estimating the resulting net cash flows from the
projects and discounting the net cash flows to their present value.  The revenue
projection  used to value the in-process  research and  development was based on
estimates  of  relevant  market  sizes and growth  factors,  expected  trends in
technology and the nature and expected  timing of new product  introductions  by
the Company and its competitors.

In the model  used to value  in-process  research  and  development  in the YAGO
acquisition,  as of March 17, 1998,  total  revenues  attributable  to YAGO were
projected to exceed $900 million in 2002, assuming the successful completion and
market  acceptance of the major R&D efforts.  As of the valuation date, YAGO had
no existing  products and  accordingly  all revenue  growth in the first several
years were related to the in-process  technologies.  The estimated  revenues for
the  in-process  were  projected  to peak in 2003 and then  decline as other new
products and technologies were projected to enter the market.

Cost of sales was estimated based on YAGO's internally generated projections and
discussions with management regarding anticipated gross margin improvements. Due
to the market  opportunities  in the Gigabit  Ethernet  arena and YAGO's  unique
product architecture  substantial  gross  margins were  expected  through  2000.
Thereafter,  gross  margins were expected to  gradually  decline as  competition
increased.  Cost of sales was  projected to average  approximately  47.5 percent
through 2003. SG&A expenses  (including  depreciation),  was projected to remain
constant as a percentage of sales at approximately 23 percent.  R&D expenditures
were projected to decrease as a percentage of sales as the  in-process  projects
were completed. R&D expenditures were expected to peak in 1998 at 7.1 percent of
sales,  decline,  and  then  level  out at 5.0  percent  of  sales  in 2000  and
thereafter.

The rates  utilized to discount the net cash flows to their  present  value were
based on venture capital rates of return.  Due to the nature of the forecast and
the risks associated with the projected growth,  profitability and developmental
projects,  discount  rates of 45.0 to 50.0  percent  were used for the  business
enterprise  and for the  in-process  R&D. The Company  believes these rates were
appropriate because they were commensurate with YAGO's stage of development; the
uncertainties   in  the  economic   estimates   described  above;  the  inherent
uncertainty  surrounding the successful  development of the purchased in-process
technology; the useful life of such technology; the profitability levels of such
technology;  and, the uncertainty of technological  advances that are unknown at
this time.
<PAGE>

The forecasts used by the Company in valuing in-process research and development
were based upon  assumptions the Company believes to be reasonable but which are
inherently  uncertain  and  unpredictable.  No  assurance  can be given that the
underlying  assumptions  used to estimate  expected  project sales,  development
costs or  profitability,  or the  events  associated  with such  projects,  will
transpire  as  estimated.   The  Company's  assumptions  may  be  incomplete  or
inaccurate, and unanticipated events and circumstances are likely to occur.
For these reasons, actual results may vary from the projected results.

Management  expects to continue  their support of these efforts and believes the
Company has a reasonable  chance of  successfully  completing  the R&D programs.
However,  there is risk associated with the completion of the projects and there
is no  assurance  that any will meet with  either  technological  or  commercial
success.  The Company  believes  as it did at the time of the YAGO  acquisition,
that if YAGO does not successfully complete its outstanding  in-process research
and  development   efforts,   Cabletron's  future  operating  results  would  be
materially  adversely  impacted  and the value of the  in-process  research  and
development might never be realized.

Other acquisitions

The Company has previously  disclosed its  methodology  used in determining  the
value  of  in-process  research  and  development  acquired  in  certain  of its
acquisitions.  The Company  used  numerous  assumptions  in valuing the acquired
technologies.  Where  significant,  the Company intends to periodically  provide
updates to these assumptions.

To date,  DNPG's  results  have not  differed  significantly  from the  forecast
assumptions. The Company continues to work toward the completion of the projects
acquired  from the DNPG.  Most of the projects are on schedule.  The Company has
completed  some  software and hardware  enhancements  to the former DNPG line of
switches,  but is still  working on the major  tasks  related to the  Gigaswitch
ATM/FDDI  products.  The first  version of the  software for the platform of the
Gigaswitch  Ethernet was  released in August  1998.  The VNswitch is still under
development and the initial  version is expected to be released  sometime in the
next quarter. In the Hub family of products the Company is expected to release a
major upgrade to the MS900 within  several  months.  The Company has released an
upgrade to the DSR  functionality,  but significant  efforts are still underway.
The  risks  associated  with  these  efforts  are still  considered  high and no
assurance  can  be  made  that  DNPG's   upcoming   products  will  meet  market
expectations.


Year 2000

The Year 2000 problem  generally  results from the use in computer  hardware and
software of two digits  rather than four digits to define the  applicable  year.
Absent corrective measures, a computer program that has date-sensitive  software
may  recognize  the date  using "00" as 1900  instead of 2000,  which may create
processing ambiguities that can cause errors and system failures. As is true for
most  companies,  the Year  2000  problem  creates  a risk for the  Company.  If
Cabletron's  products,  internal  systems or the systems of its suppliers do not
correctly  recognize date information when the year changes to 2000, there could
be an adverse impact on the Company's operations.

The Company initiated a Year 2000 project (the Project) to analyze the impact of
the Year 2000 date change on the Company's family of networking products and its
mission-critical business processes.  "Mission-critical"  business processes are
those functions  whose loss would cause an immediate  stoppage of or significant
impairment  to  the  Company's  operations.  Implementation  of the  Project  is
supervised by a dedicated Year 2000 Project Management Office, which reports its
progress to an Executive  Steering  Committee.  Each  operating  division of the
Company  is  applying  procedures  specific  to it that are part of the  overall
Project.  Cabletron also has engaged outside  consultants and external resources
to help formulate and evaluate the Project.

The  Company is actively  implementing  the  Project,  which will be modified as
events  warrant.  The Project uses a five phase approach to address and evaluate
Year 2000 issues:  1) conducting  an inventory of Year 2000 items;  2) assigning
priorities to  identified  items and assessing the effects of Year 2000 problems
on the  mission-critical  functions of the Company;  3)  remediation of systems,
software and embedded  systems not Year 2000 ready; 4) testing  mission-critical
systems; and 5) designing and implementing contingency plans.

The Project  realizes  that  outside  suppliers  that  provide  mission-critical
services and supplies ("Key  Suppliers")  have the potential to adversely affect
the Company's business.  Cabletron does not have control of these Key Suppliers.
However,  the Project  includes an ongoing process of identifying and contacting
Key Suppliers  whose services and products may have a substantial  effect on the
Company's  mission-critical  business processes.  Cabletron will make reasonable
attempts to coordinate  with these Key Suppliers to obtain  assurances that they
will be Year 2000 ready before January 1, 2000.

The  Project has  identified  four areas of  exposure  within the  Company  with
respect to the Year 2000: the internal  information  technology  systems used to
run the Company's business;  production,  manufacturing,  design and engineering
equipment and facilities; the Company's Key Suppliers; and Cabletron Products.

Internal Information Systems

The Company has completed the  inventory and  assessment  phases of its internal
information  technology,  including its main financial,  manufacturing and order
processing  systems.  Cabletron  expects to complete  remediation and testing of
these  systems by the end of October  1999,  and does not  currently  expect any
significant  issues to be  identified  during the  completion  of these  phases.
However, the failure of any internal system to achieve Year 2000 readiness could
disrupt the  Company's  ability to conduct its business or record  transactions,
which could  adversely  affect  results of  operations  or financial  condition.

Equipment and Facilities

The Company has largely  completed the inventory  and  assessment  phases of its
mission-critical equipment,  including manufacturing,  designing and engineering
equipment.  Cabletron  expects to complete the remediation and testing phases by
the end of September  1999.  Failure of equipment  caused by a Year 2000 problem
could result in disruptions in the Company's manufacturing,  design,  production
and shipping  capabilities and could adversely  affect the Company's  results of
operations and financial condition.

The Company is also  assessing  the Year 2000  readiness  of the  facilities  it
occupies,  with priority  being placed on the  facilities it owns and the leased
property that house large numbers of Cabletron employees. The Company expects to
complete  its  remediation  efforts by  September  1999.  These  facilities  are
critical to  operations  and any delays in achieving  Year 2000  readiness  with
respect to these  facilities  could  adversely  affect the Company's  results of
operations or financial condition.

Key Suppliers

The Project has assessed it mission  critical  suppliers and sent surveys to all
Key Suppliers.  The evaluation process includes compliance inquiries and reviews
that  will  continue  throughout  1999.  Where  issues  are  identified  with  a
particular  Key  Supplier,  contingency  plans  will be  developed.  Even  where
assurances  are received from third parties there remains a risk that failure of
systems and products of other companies on which  Cabletron  relies could have a
material  adverse  effect on the Company.  Further,  if these Key Suppliers fail
adequately  to address  the Year 2000  issue for the  products  they  provide to
Cabletron,  critical materials,  products and services may not be delivered in a
timely manner,  which could adversely affect the Company's results of operations
or financial condition.

Cabletron Products

The Company has conducted  extensive  work  regarding the status of its current,
developing and installed  base of products.  The Company has published a list of
its major products indicating their status of Year 2000 compliance. This list is
available      on     the      Company's      World      Wide      Web      page
(http://www.cabletron.com/year-2000)  and is updated  periodically.  The Company
believes that  substantially  all of its current hardware products are Year 2000
compliant.  The Company  believes that its older hardware  products that are not
Year 2000  compliant  will  continue  to  perform  all  essential  and  material
functions  after the year 2000 but may,  in limited  circumstances,  incorrectly
report the date of events  (i.e.,  events on the network  that are reported to a
network  management  software package) after the year 2000. The Company believes
that its current  versions of Spectrum  (Version  5.0),  its network  management
platform,  is Year 2000 compliant.  Older versions of Spectrum are not Year 2000
compliant.  The  Company is  offering  upgrades  for some,  but not all,  of the
non-compliant  products  (both  hardware and  software)  previously  sold by the
Company. For those non-compliant products with no upgrade available, the Company
is offering customers the opportunity to purchase equipment offering  equivalent
functionality.  Given  that most  non-compliant  products  previously  sold will
continue to perform  their  standard  functions,  the Company  expects that many
customers  will decide not to replace  those  products.  Despite  the  Company's
efforts  to date to  identify  the  Year  2000  compliance  of its  current  and
installed  base of products and the effects of any  non-compliance,  the Company
cannot be sure that it has  identified all areas of  non-compliance  or that any
solutions it implements to address the non-compliance  will prove  satisfactory.
Further, since all customer situations cannot be anticipated, particularly those
involving  third  party  products,  the Company  may  experience  an increase in
warranty  and other  claims as a result of the Year 2000  transition.  For these
reasons,  the impact of customer claims could have a material  adverse impact on
the Company's results of operations or financial condition.

As  used  in  this  section,  "Year  2000  compliant"  means,  with  respect  to
information  technology,  that the  information  technology,  where  applicable,
accurately processes date/time data (including, but not limited to, calculating,
comparing,   and  sequencing)   from,   into,  and  between  the  twentieth  and
twenty-first centuries,  and the years 1999 and 2000 and leap year calculations,
to the extent that other  information  technology,  used in combination with the
information  technology being acquired,  properly exchanges  date/time data with
it.

Costs

Based on the work  performed  to date,  the  Company has not  incurred  material
costs. The Company presently estimates it will incur between $15 and $18 million
of  costs,  of which  approximately  85% will be for  capital  expenditures,  in
connection  with its Year 2000 efforts.  This  estimate is based on  information
gathered  to  date,  and  may  be  materially   revised.  If  implementation  of
replacement systems is delayed, or if significant new non-compliance  issues are
identified,  the Company's results of operations or financial condition could be
materially adversely affected. Expectations about future Year 2000-related costs
are  subject to various  uncertainties  that could  cause the actual  results to
differ materially from the Company's expectations,  including the success of the
company in  identifying  systems and programs that are not Year 2000 ready,  the
nature  and amount of  programming  required  to upgrade or replace  each of the
affected  programs,  the  availability,  rate and magnitude of related labor and
consulting costs and the success of the Company's business partners, vendors and
clients in addressing the Year 2000 issue.

Contingency Plans

Contingency plans are being developed in mission-critical  areas, to ensure that
any potential material business  interruptions caused by the Year 2000 issue are
mitigated.  Preliminary  contingency  plans  will  be  updated  as  the  Project
continues to refine and assess risk.

The  foregoing  statements  are based upon  management's  best  estimates at the
present time which were derived utilizing numerous assumptions of future events,
including  the  continued   availability  of  certain  resources,   third  party
modification plans and other factors. The Company has taken and will continue to
take corrective action to mitigate any significant Year 2000 problems. There can
be no  guarantee  that the  Company  will not  experience  significant  business
disruptions or loss of business due to the Year 2000 issue. Specific factors may
later  become  known  which  could  result in a material  adverse  impact on the
Company's results of operations or financial condition.

New Accounting Pronouncements

In December 1998, the AICPA  Accounting  Standards  Executive  Committee  issued
Statement of Position (SOP) 98-9, "Modification of Software Revenue Recognition"
which requires recognition of revenue using specific methods and amends SOP 98-4
(Deferral of the Effective  Date of a Provision of SOP 97-2) and amends  certain
paragraphs  of SOP  97-2.  The  Company  adopted  SOP 98-9  for its year  ending
February 28, 2000,  beginning on March 1, 1999. The adoption of SOP 98-9 did not
have a material  impact on the Company's  results of operations  for the quarter
ended May 31, 1999.

In June 1998, the Financial  Accounting  Standards Board (FASB) issued Financial
Accounting Standard No. 133, "Accounting for Derivative  Instruments and Hedging
Activities" (SFAS 133) which requires companies to record derivative instruments
on the balance sheet as assets or liabilities,  measured at fair value. Gains or
losses  resulting  from  changes  in the  values of those  derivatives  would be
accounted  for depending on the use of the  derivative  and whether it qualifies
for hedge accounting. SFAS 133 will be effective for the Company's first quarter
of fiscal year ending February 28, 2002.  Management is currently evaluating the
potential   effects  of  this   pronouncement  on  its  consolidated   financial
statements.  At  this  time,  management  does  not  expect  the  impact  to  be
significant.


ITEM 7a.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The Company  continues  to be exposed to changes in  interest  rates and foreign
currency exchange rates which may adversely affect its results of operations and
financial position. Refer to the Company's Form 10-K for the year ended February
28, 1999 for  additional  information  regarding  quantitative  and  qualitative
disclosures about market risk.


<PAGE>

PART II. OTHER INFORMATION

Item 5.  Other

The Company previously announced plans to outsource its worldwide  manufacturing
to  Celestica,  Inc..  The  Company  has not  changed  its  plans  to  outsource
substantially all of its manufacturing; however, its approach has been modified.
The Company is proceeding with a strategic relationship with Celestica,  but the
Company and Celestica have decided to begin with a smaller, simpler relationship
than had originally been envisioned. The specific impact of these changes in the
Company's strategy are: (i) the Company's Rochester, New Hampshire manufacturing
operation  will  continue  to be owned  and  operated  by the  Company;  (ii) As
originally  planned,  the Company's Ohio manufacturing  operation will be closed
and the  manufacturing  previously  performed  in Ohio  will be  phased  out and
transferred to the Company's Rochester,  New Hampshire and Ireland manufacturing
facilities;  and  (iii)  the  Company's  Ireland  manufacturing  operation  will
continue to be owned and operated by the Company and Celestica will not play any
role in the  operation  of the  Ireland  operations.  Finally,  the  Company  is
currently considering the option of engaging another first-tier  manufacturer to
assume  a  substantial   piece  of  its   manufacturing  in  order  to  optimize
competitiveness among manufacturers and eliminate a single point of failure.




Item 6. Exhibits and Reports on Form 8-K.

[a] There  were no reports on Form 8-K filed  during the  quarter  ended May 31,
1999.

[b] Exhibit 10.19 Employment agreement for Piyush Patel.

    Exhibit 10.20 Employment agreement for Romulus Pereira.

<PAGE>



Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
Registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.








                                              CABLETRON SYSTEMS, INC.
                                              -----------------------
                                              (Registrant)


July 15, 1999                         /s/ Piyush Patel
- -------------                             ------------
         Date                             Piyush Patel
                                          Chairman, President, and
                                          Chief Executive Officer


July 15, 1999                         /s/ David J. Kirkpatrick
- -------------                             --------------------
        Date                              David J. Kirkpatrick
                                          Corporate Executive Vice President of
                                          Finance and Chief Financial Officer




<PAGE>



EXHIBIT INDEX
Exhibit                                                                   Page
    No.     Exhibit                                                        No.

 11.1        Included in notes to consolidated financial statements         ---
10.19        Employment Agreement with Piyush Patel                         19
10.20        Employment Agreement with Romulus Pereira                      26



<PAGE>
                                  EXHIBIT 10.19


                             CABLETRON SYSTEMS, INC.

                              Employment Agreement


AGREEMENT dated as of February 23,  1998 by and between Cabletron Systems,  Inc.
("Parent"),  a  Delaware  corporation  with an  address  at 35  Industrial  Way,
Rochester,  New Hampshire 03867 and Piyush Patel, an individual  residing at 864
Beaver Court, Fremont, California 94539 (the "Employee").

WHEREAS, Parent, together with its subsidiaries and affiliates (collectively and
singularly as the context requires,  the "Company"),  is engaged in the business
of  developing,  manufacturing,  and selling  products for use in computers  and
computer networks;

WHEREAS,  Parent and Yago Systems,  Inc., a Delaware corporation ("Yago"),  have
entered into an agreement (the "Merger Agreement") pursuant to which inter alia,
a wholly owned subsidiary of Parent will merge with and into Yago; and

WHEREAS,  Employee is, as of the date hereof,  an employee of Yago, and Employee
and the  Parent  desire to set forth the terms  under  which  Employee  shall be
employed by the  Company  from and after the  Effective  Time (as defined in the
Merger Agreement).

NOW,  THEREFORE,  in  consideration  of the  foregoing  premises  and the mutual
promises,  terms,  provisions and conditions  set forth in this  Agreement,  the
parties hereby agree as follows:


1. Employment.  Subject to the terms and conditions set forth in this Agreement,
the Company hereby offers and Employee hereby accepts  employment,  effective as
of the Effective  Time. If, prior to the Effective  Time,  the Merger  Agreement
shall be terminated, this Agreement shall automatically terminate and be without
further force and effect.

2. Term.  Subject to  earlier  termination  as  hereafter  provided,  Employee's
employment  hereunder  shall  commence at the Effective  Time and continue for a
period of eighteen (18) months.  Forty-five (45) days prior to the expiration of
the initial term of this  Agreement or any  extension  thereof,  Employee  shall
provide written notice to the Company of Employee's desire to extend the term of
this  Agreement for an additional  one (1) year period,  whereafter  the Company
shall have fifteen (15) days to either  terminate  this  Agreement in accordance
with the terms hereof or agree to extend this  Agreement by  delivering  written
notice to the Employee; provided, however, any failure by the Company to respond
within the period set forth above shall  result in the  automatic  extension  of
this  Agreement  for such  additional  one (1) year  period.  The "term" of this
Agreement means the initial term and any extension thereof.  Any continuation of
Employee's employment with the Company after the term of this Agreement shall be
at will; provided,  however, that Employee's  obligations under Sections 5 and 6
shall survive any termination or expiration or this Agreement and shall continue
to bind Employee for the duration of Employee's employment with the Company.

3. Capacity and Performance.

3.1.  Offices.  During the term hereof,  Employee  shall hold such positions and
shall perform such duties and  responsibilities  on behalf of the Company as may
be  designated  from  time to time by the  Board of  Directors  of  Parent  (the
"Board"),  the  President  of Parent (the  "President"),  or by their  designees
(collectively, the "Management").

3.2.  Performance.  During the term  hereof,  Employee  shall be employed by the
Company  on a  full-time  basis  and shall  perform  and  discharge  faithfully,
diligently and to the best of his ability such other duties and responsibilities
on behalf of the  Company as may be  designated  from time to time by the Board.
During the term hereof,  the Employee shall devote Employee's full business time
and best efforts,  business  judgment,  skill and knowledge  exclusively  to the
advancement of the business and interests of the Company and to the discharge of
Employee's duties and responsibilities  hereunder.  Employee shall not engage in
any other  activities  directly  related  to the  business  of the  Company  and
determined by the Company to be detrimental to the best interests of the Company
without the prior written consent of the Company. Nothing in this Agreement will
prevent Employee from accepting speaking or presentation engagements in exchange
for  honoraria or from serving on boards of  charitable  organizations,  or from
owning no more than one percent (1%) of the outstanding  equity  securities of a
corporation whose stock is listed on a national stock exchange.

4.  Compensation  and Benefits.  As compensation  for all services  performed by
Employee  under and  during  the term  hereof  and  subject  to  performance  of
Employee's duties and of the obligations of Employee to the Company, pursuant to
this  Agreement,  including  without  limitation,  Sections  5  and  6  of  this
Agreement, or otherwise:

4.1. Base Salary.  During the term hereof, the Company shall pay Employee a base
salary at the rate of $200,000 per annum, payable in accordance with the payroll
practices of the Company for its  employees and subject to increase from time to
time by the Management, in its sole discretion (the "Base Salary").

4.2. Benefits.  During the term hereof and subject to any contribution  therefor
generally  required of employees of the Company,  Employee  shall be entitled to
participate  in any and all employee  benefit  plans from time to time in effect
for employees of the Company generally.  Such participation  shall be subject to
(i) the  terms of the  applicable  plan  documents,  (ii)  generally  applicable
Company policies,  and (iii) the discretion of Management or any  administrative
or other committee provided for in or contemplated by such plan. The Company may
alter, modify, add to or delete its employee benefit plans at any time as it, in
its sole judgment, determines to be appropriate, without recourse by Employee.

4.3. Vacations.  During the term hereof,  Employee shall be entitled to vacation
in accordance with the Parent's  vacation policy as in effect from time to time.
Such  vacation to be taken at such times and intervals as shall be determined by
Employee,  subject to the  reasonable  business  needs of the Company.  Employee
shall be entitled to cash  compensation  for vacation  time not taken during the
term hereof to the extent  approved by the Board or its  Management  in writing.
For purposes of calculating the vacation for which Employee is eligible pursuant
to Parent's  vacation  policy  only,  Employee's  employment  with Yago shall be
deemed to be employment by the Company. In addition, up to two weeks of vacation
accrued but not taken while an employee of Yago will be assumed by the Company.

4.4. Tax  Withholding.  All payments  made by the Company  under this  Agreement
shall be reduced by any tax or other  amounts  required  to be  withheld  by the
Company under applicable law.

4.5.  Business  Expenses.  The Company  shall pay or reimburse  Employee for all
reasonable,  customary  and  necessary  business  expenses  incurred  or paid by
Employee in the performance of Employee's duties and responsibilities hereunder,
subject to any expense policy set by the Management  and other  restrictions  on
such  expenses  set by the  Board  and to  such  reasonable  substantiation  and
documentation as may be specified by the Company from time to time.

5. Intellectual Property.

5.1.  Assignment  of  Inventions.  Subject to the  provisions of this Section 5,
Employee hereby assigns and agrees to assign to the Company, all rights,  titles
and interests in and to any inventions,  formulae,  data, programs,  techniques,
processes,   ideas,   algorithms,   discoveries,   designs,   developments   and
improvements  that  Employee  may make,  reduce to practice,  conceive,  invent,
discover,  design or otherwise acquire, whether alone or with others, (i) during
Employee's employment by Company, relating to the business,  products,  research
or development (to the extent known by Employee) of the Company or (ii) required
to  be  assigned  to  Yago  under  any  agreement   between  Yago  and  Employee
(collectively,  "Inventions").  This  Agreement  does not apply to an  Invention
which  qualifies  fully as a  nonassignable  Invention  under the  provisions of
Section 2870 of the California Labor Code as follows:  "THIS IS TO NOTIFY you in
accordance  with  Section 2872  of the California  Labor Code that the foregoing
Agreement between you and the Company does not require you to assign or offer to
assign to the Company any invention that you developed entirely on your own time
without  using the  Company's  equipment,  supplies,  facilities or trade secret
information  except for those inventions that either:  (1) relate at the time of
conception or reduction to practice of the invention to the Company's  business,
or actual or demonstrably anticipated research or development of the Company; or
(2)  result  from any work  performed  by you for the  Company.  To the extent a
provision  in the  foregoing  Agreement  purports  to  require  you to assign an
invention  otherwise  excluded  from the preceding  paragraph,  the provision is
against  the public  policy of this  state and is  unenforceable.  This  limited
exclusion  does not  apply to any  patent or  invention  covered  by a  contract
between the Company and the United States or any of its agencies  requiring full
title to such patent or invention to be in the United States."

Employee agrees that Inventions relating to the business,  products, research or
development  (to the extent known by Employee) of the Company  conceived or made
by me while an employee  of the Company  belong to and are to be assigned to the
Company,  regardless of whether such Invention is reduced to practice  during my
employment  or after  termination  thereof,  and  Employee  agrees  to  disclose
promptly in writing to the Company all such Inventions.

5.2.   Confidential   Information.   Employee   shall  regard  and  preserve  as
confidential   all   Confidential   Information.   For  the   purposes   hereof,
"Confidential  Information"  shall mean any and all  information  of the Company
that is not generally known by others with whom it competes or does business, or
with  whom it plans to  compete  or to do  business.  Subject  to the  foregoing
limitation as to generally known information, Confidential Information includes,
without  limitation,  information  relating  to (i) the  development,  research,
testing,  marketing  and financial  activities of the Company;  (ii) any and all
versions of the Company's proprietary computer software,  hardware, firmware and
documentation;   (iii)   other   proprietary   software,   hardware,   firmware,
documentation and information created, developed, produced or distributed by the
Company (including,  without limiting the generality of the foregoing,  any such
software, hardware, firmware,  documentation and information created, developed,
produced, distributed or made known by the Company to Employee during the period
of or arising  out of  Employee's  service to the  Company);  (iv) the manner in
which  the  Company  operates,  (v) the  costs,  sources  of  supply,  financial
performance  and strategic  plans of the Company,  (vi) the identity and special
needs  of the  customers  or  suppliers  of  the  Company,  (vii)  confidential,
proprietary or trade secret  information  submitted by the Company's  suppliers,
employees, consultants to or co-venturers with the Company for study, evaluation
or use; (viii) the people and  organizations  with whom the Company has business
relationships and the nature of those relationships;  and (ix) the identities of
employees of the Company.

Confidential  Information  shall not include any  information  that:  (i) was or
becomes  generally  known in the trade or business of the Company through no act
of Employee or its employees,  agents, or independent  contractors;  or (ii) has
come  into  the  possession  of  Employee  from a third  party  who is  under no
obligation to maintain the confidentiality of such information.

Employee shall not, without written authority from the Company to do so, use for
Employee's  own benefit or purposes,  or the benefit or purpose of any person or
entity other than the Company, nor disclose to others,  either during Employee's
employment with the Company or at any time thereafter, except as required in the
course of employment with the Company, any Confidential Information.

5.3. Works of Authorship.  Employee agrees that any original works of authorship
including, without limitation, all documents,  blueprints,  drawings, mask works
and computer programs (including,  without limitation,  all software,  firmware,
object code, source code, documentation, specifications, revisions, supplements,
modules, and upgrades)  conceived,  created,  performed,  or produced during the
term of  Employee's  employment  with the Company and all foreign and  domestic,
registered and  unregistered,  copyrights and mask work rights and  applications
for registrations therefor related to any such work of authorship, in each case,
whether or not made during regular working hours,  relating to the actual or (to
the  extent  known  to  Employee)  planned  business,   products,   research  or
development  of  Company  (collectively  "Works  of  Authorship")  shall  be the
exclusive  property  of the  Company,  as the case may be.  To the  extent  that
Employee  has or obtains  any  right,  title or  interest  in or to any Works of
Authorship during the term of his employment, Employee hereby assigns and agrees
to assign  to the  Company,  as the case may be,  all of such  right,  title and
interest therein and thereto.

5.4.  Disclosure.  Employee  shall  promptly  and  fully  disclose  any  and all
Inventions and Works of Authorship to Employee's supervisor or such other person
as the Company may designate for such purpose.

5.5. Further Assistance.  Employee shall, during Employee's  employment with the
Company  and at any time  thereafter,  upon the request of and at the expense of
the Company, but at no additional  compensation to Employee (except for time and
direct  expense if Employee is not  employed at the Company at that time) do all
acts and things,  including, but not limited to, making and executing documents,
applications and instruments and giving information and testimony, in each case,
deemed by the Company form time to time, in its sole discretion, to be necessary
or appropriate (i) to vest, secure, defend, protect or evidence the right, title
and  interest  of the  Company  in  and to any  and  all  Inventions,  Works  of
Authorship and Confidential  Information;  and (ii) to obtain for the Company in
relation  to  all  such  letters  patent,  design   registrations,   copyrights,
registrations  and/or  mask work  registrations,  in the  United  States and any
foreign countries, and/or any reissues, renewals and/or extensions thereof.

5.6. Previous Obligations.  Employee represents and warrants to the Company that
Employee's  assignment  of  Inventions  or  Works of  Authorship  will not be in
violation of the provisions of any agreement  between  Employee and any previous
employer  (other than Yago),  nor does Employee  claim any existing title in any
previous unpatented Inventions, developments, improvements or Work of Authorship
within the scope of this  Agreement (or that would have been within the scope of
this Agreement had it been in effect during the term of Employee's employment by
Yago).

5.7.  Return  of  Documents.  All  media  on  which  any  Inventions,  Works  of
Authorship,  or Confidential Information may be recorded or located,  including,
without  limitation,   documents,  samples,  models,  blueprints,   photocopies,
photographs,  drawings,  descriptions,  reproductions,  cards,  tapes, discs and
other storage facilities (collectively "Documentation") made by Employee or that
come into  Employee's  possession  by reason of Employee's  employment  with the
Company  are the  property  of the  Company,  as the case may be,  and  shall be
returned to the Company by Employee upon  termination  of  employment.  Employee
will  not  deliver,  reproduce,  or in any way  allow  any  Documentation  to be
delivered or used by any third party without the written direction or consent of
a duly authorized representative of the Company.

6. Covenant Not to Compete.

6.1. Non-Compete.  Employee covenants and agrees that for so long as he shall be
employed by the  Company,  and for a period of eighteen  (18) months  after such
termination  of  employment   pursuant  to  this  Agreement  or  otherwise  (the
"Non-Competition  Period"),  the Employee shall not, directly or indirectly,  as
principal, partner, agent, servant, employee, stockholder, or otherwise anywhere
in the world, engage or attempt to engage in any business activity involving the
design,  manufacture,  distribution or sale to LAN and/or WAN markets of gigabit
ethernet switching and/or routing products (the "Competing Business"); provided,
however,  nothing in this  Section 6.1 shall  prevent  Employee  from  accepting
employment  during  the  Noncompetition  Period  with a  company  involved  in a
Competing Business so long as Employee shall not directly or indirectly consult,
assist or otherwise  work in the division of such other  company  involving  the
Competing  Business;  provided,  further,  the  Employee  shall  not  under  any
circumstance accept employment during the Noncompetition Period with Cisco, Inc.
3Com, Inc. and Bay Networks,  Inc. The foregoing shall not prohibit  Employee or
his  spouse  or  children  and from  owning  beneficially  any  publicly  traded
security,  so long as the beneficial  ownership by them,  when combined with the
beneficial  ownership of such publicly traded security of any group (as the term
is used in Section 13(D) of the Securities Exchange Act of 1934) of which any of
them is a member  constitutes  (x) less than Five  Percent  (5%) of the class of
such publicly  traded  security or (y) less than Five Percent (5%) of the voting
power of all outstanding securities of the issuer of such security.

6.2. Non-Solicitation. Employee agrees that for as long as he or she is employed
by the  Company  and  through  the  Non-Competition  Period,  Employee  will not
solicit, recruit, or induce any other person to solicit or recruit, any employee
of the Company  (including  any person who was an  employee of Yago)  within the
sixty (60) day period  immediately  preceding the date hereof or was an employee
during the period of Employee's  employment hereunder for one year following the
end of such employee's  employment with Yago or the Company, as the case may be,
or  otherwise  induce any  employee  to leave the  employment  of the Company to
become an employee of or  otherwise  be  associated  with a business  with which
Employee is associated.

Employee further agrees that during the  Non-Competition  Period,  Employee will
not, in competition with the Company,  solicit business from any customer of the
Company made known to Employee during his employment with the Company.

6.3. Reasonableness of Restrictions.  Employee recognizes that the consideration
to be paid and all other obligations of the Company to be performed  pursuant to
this Agreement are intended, in significant part, to secure Employee's agreement
to the conditions of this Section 6, and Employee  recognizes that the foregoing
territorial and time  limitations  are reasonable and properly  required for the
adequate  protection  of the business of the Company and any Company  Affiliates
and that in the event that any such  territorial or time limitation is deemed to
be unreasonable by any California tribunal having jurisdiction,  Employee agrees
to submit to the reduction of either said territorial or time limitation to such
an area or period as shall be deemed reasonable by such tribunal.

7.  Termination  of  Employment  and  Severance  Benefits.  Notwithstanding  the
provisions of Section 2 hereof,  Employee's employment hereunder shall terminate
prior to the expiration of the term under the following circumstances:

7.1. Retirement or Death. In the event of Employee's  retirement or death during
the  term  hereof,   Employee's   employment  hereunder  shall  immediately  and
automatically  terminate.  During the term hereof,  Employee may elect to retire
after the age of sixty-five  with the prior written consent of the Board and, in
that  event,  shall be paid any earned and unpaid Base Salary that is earned but
unpaid  prorated  through  the date of  Employee's  retirement.  In the event of
Employee's  death during the term hereof,  the Company  shall pay to  Employee's
designated beneficiary or, if no beneficiary has been designated by Employee, to
his estate,  any earned and unpaid Base Salary,  and accrued but unused vacation
time that is earned but unpaid, pro-rated through the date of Employee's death.

7.2. Disability.

7.2.1. The Company may terminate Employee's employment hereunder, upon notice to
Employee,  in  the  event  that  Employee  becomes  disabled  during  Employee's
employment  hereunder  through any  illness,  injury,  accident or  condition of
either a physical or psychological nature and, as a result, is unable to perform
substantially all of Employee's duties and responsibilities hereunder for either
(a) sixty (60)  consecutive  calendar  days or (b) an  aggregate  of one hundred
twenty  (120) days  during  any period of three  hundred  and  sixty-five  (365)
consecutive calendar days.

7.2.2.  The Board may  designate  another  employee to act in  Employee's  place
during  any  period  of   Employee's   disability.   Notwithstanding   any  such
designation,  Employee  shall  continue to receive the Base Salary in accordance
with  Section 4.1 and  benefits in  accordance  with  Section 4.2, to the extent
permitted by the  then-current  terms of the  applicable  benefit  plans,  until
Employee  becomes  eligible for disability  income  benefits under the Company's
disability  income  plan or until  the  termination  of  Employee's  employment,
whichever shall first occur. Upon termination of the Employee's employment under
this  Section the Company  shall also pay to Employee  any  accrued,  but unused
vacation.

7.2.3. While receiving disability income payments under the Company's disability
income  plan,  Employee  shall not be entitled to receive any Base Salary  under
Section 4.1,  but shall  continue to  participate  in Company  benefit  plans in
accordance  with Section 4.2 and the terms of such plans,  until the termination
of Employee's employment.

7.2.4.  If any question shall arise as to whether during any period  Employee is
disabled through any illness, injury, accident or condition of either a physical
or  psychological  nature  so as to be unable to  perform  substantially  all of
Employee's  duties and  responsibilities  hereunder,  Employee  may,  and at the
request of the Company  shall,  submit to a medical  examination  by a physician
selected by the Company, to whom Employee or Employee's duly appointed guardian,
if any,  has no  reasonable  objection,  to  determine  whether  Employee  is so
disabled  and such  determination  shall for the  purposes of this  Agreement be
conclusive of the issue. If such question shall arise and Employee shall fail to
submit to such medical  examination,  the Company's  determination  of the issue
shall be binding on Employee.

7.3. By the Company for Cause. The Company may terminate  Employee's  employment
hereunder  for  Cause at any time  upon  notice  to  Employee  setting  forth in
reasonable detail the nature of such Cause. The following,  as determined by the
Board in its reasonable judgment, shall constitute Cause for termination:

7.3.1.  Material breach of this Employment Agreement after Employee has received
written  notice of such breach and has not cured such  breach  within 30 days of
receipt of such notice;

7.3.2.  Dishonest or fraudulent conduct, a deliberate attempt to do an injury to
Cabletron,  or conduct that  materially  discredits  Cabletron or is  materially
detrimental to the reputation of Cabletron, including conviction of a felony; or

7.3.3.  Employee's  incurable  material breach of any element of the Cabletron's
Confidential  Information,   Non-Compete  and  Invention  Assignment  Agreement,
including without limitation,  employee's theft or other misappropriation of the
Company's proprietary information.

Upon termination of Employee's employment hereunder for Cause, the Company shall
have no further obligation or liability to Employee,  other than for Base Salary
earned  and  unpaid at the date of  termination  as well as  accrued  but unused
vacation.

7.4. By the Company Other than for Cause.  The Company may terminate  Employee's
employment  hereunder  other than for Cause at any time upon notice to Employee.
In the event of such  termination,  and provided  that no  comparable  or better
benefits  are payable to Employee  under a separate  severance  agreement  or an
executive  severance  plan as a  result  of such  termination,  then  until  the
conclusion of a period equal to the remainder of the  then-current  term of this
Agreement  (the  "Severance  Period"),  the  Company  shall (a)  continue to pay
Employee  the Base Salary at the rate in effect on the date of  termination  and
(b) subject to any employee  contribution  applicable to Employee on the date of
termination,   shall   continue  to   contribute   to  the  cost  of  Employee's
participation  in the  Company's  group  medical  and  dental  insurance  plans,
provided  that  Employee  is  entitled  to  continue  such  participation  under
applicable law and plan terms, provided that if any salary and benefits are paid
under this  sentence,  Employee shall not be entitled to any salary and benefits
under any other  severance  agreement or executive  severance plan. In addition,
upon any  termination  of Employee  pursuant to this  Section 7.4, all shares of
Common Stock and stock options of the Company  owned or granted to Employee,  as
the case may be, shall vest  immediately and any repurchase  rights with respect
thereto shall lapse. Further, if Employee is terminated pursuant to this Section
7.4 under any  circumstance,  including but not limited to, as part of a general
layoff by the  Company,  the  provisions  of Section 6.1 shall have no force and
effect.

7.5. By Employee for Good Reason.  Employee may terminate Employee's  employment
hereunder  for  Good  Reason,  upon  notice  to the  Company  setting  forth  in
reasonable detail the nature of such Good Reason. The following shall constitute
Good Reason for termination by Employee:

7.5.1.   Material   diminution   in  the   nature   or   scope   of   Employee's
responsibilities,  duties or authority; provided, however, the Company's failure
to  continue  Employee's  appointment  or  election  as a director or officer of
Parent or any of the  subsidiaries or affiliates of Parent and any diminution of
the business of the Company,  including without  limitation the sale or transfer
of any or all of the assets of the Company,  shall not constitute "Good Reason";
or

7.5.2.  Material  failure of the Company to provide Employee the Base Salary and
benefits in accordance with the terms of Section 4 hereof,  which failure is not
cured within thirty (30) days written notice thereof by Employee to the Company.

7.5.3. Termination of Employee's employment as a result of Employee's refusal to
consent the relocation of Employee's  principal place of employment to more than
60 miles from Sunnyvale, California.

In the event of  termination  in accordance  with this Section 7.5, and provided
that no comparable or better  benefits are payable to Employee  under a separate
severance  agreement  or  an  executive  severance  plan  as a  result  of  such
termination,  then until the end of the Severance Period,  the Company shall (a)
continue  to pay  Employee  the Base Salary at the rate in effect on the date of
termination and (b) subject to any employee contribution  applicable to Employee
on the  date  of  termination,  shall  continue  to  contribute  to the  cost of
Employee's  participation  in the Company's  group medical and dental  insurance
plans,  provided that Employee is entitled to continue such participation  under
applicable  state and  federal  law and plan terms,  provided  that  Employee is
entitled to continue such  participation  under  applicable  law and plan terms,
provided that if any salary and benefits are paid under this sentence,  Employee
shall not be  entitled  to any salary  and  benefits  under any other  severance
agreement or executive  severance  plan. In addition,  upon any  termination  of
Employee  pursuant to this  Section  7.5,  all shares of Common  Stock and stock
options of the Company  owned or granted to Employee,  as the case may be, shall
vest immediately and any repurchase rights with respect thereto shall lapse.

7.6. By Employee Other than for Good Reason.  Employee may terminate  Employee's
employment  hereunder  at any time upon thirty (30) days' notice to the Company,
unless such termination  would violate any obligation of Employee to the Company
under a separate  severance  agreement.  In the event of termination of Employee
pursuant  to this  Section  7.6,  Management  may elect to waive  the  period of
notice, or any portion thereof,  and, if Management so elects,  the Company will
pay Employee his Base Salary for the notice period, plus any accrued, but unused
vacation.   If  Employee  shall  voluntarily   terminate  Employee's  employment
hereunder,  the  Company  shall  have no  further  obligation  or  liability  to
Employee,  other  than  for  Base  Salary  earned  and  unpaid  at the  date  of
termination,  accrued  but  unused  vacation  and as  specifically  set forth in
Section 8.1 hereof.

7.7. Post-Agreement  Employment.  In the event Employee remains in the employ of
the  Company or any of the  Company  Affiliates  following  termination  of this
Agreement,  by the  expiration  of the term or otherwise,  then such  employment
shall be at will.

8.  Effect of  Termination.  The  provisions  of this  Section 8 shall  apply to
termination  due to the  expiration  of  the  term,  pursuant  to  Section  7 or
otherwise.

8.1. Payment by the Company of any Base Salary, accrued, but unused vacation and
contributions to the cost of Employee's continued participation in the Company's
group  health and dental  plans that may be due  Employee in each case under the
applicable  termination  provision  of  Section 7 shall  constitute  the  entire
obligation of the Company to Employee.  Acceptance by Employee of performance by
the Company shall  constitute  full settlement of any claim under this Agreement
that Employee might otherwise assert against the Company, the Company Affiliates
or any of their  shareholders,  directors,  officers,  employees  or  agents  on
account of such termination.  Employee shall promptly give the Company notice of
all facts  necessary for the Company to determine the amount and duration of its
obligations in connection  with any  termination  pursuant to Section 7.4 or 7.5
hereof.

8.2.  Except for medical and dental  insurance  coverage  continued  pursuant to
Section 7.4 or Section  7.5 hereof,  benefits  shall  terminate  pursuant to the
terms of the  applicable  benefit  plans  based on the  date of  termination  of
Employee's employment without regard to any continuation of Base Salary or other
payment to Employee following such date of termination.

8.3.  Provisions of this Agreement  shall survive any termination if so provided
herein or if  necessary or desirable  fully to  accomplish  the purposes of such
provision,  including  without  limitation  the  obligations  of Employee  under
Sections 6 hereof.  The  obligation  of the  Company to make  payments  to or on
behalf of Employee under Section 7.4, 7.5 or 7.6 hereof is expressly conditioned
upon Employee's continued full performance of obligations under Sections 5 and 6
hereof. Employee recognizes that, except as expressly provided in Section 7.4 or
7.5, no compensation is earned after termination of employment.

9.  Conflicting  Agreements.  Employee  hereby  represents and warrants that the
execution  of this  Agreement  and the  performance  of  Employee's  obligations
hereunder  will not breach or be in conflict  with any other  agreement to which
Employee  is a party or is bound and that  Employee  is not now  subject  to any
covenants  against  competition  or  similar  covenants  that  would  affect the
performance of Employee's obligations  hereunder.  Employee will not disclose to
or use on  behalf  of the  Company  or any  Company  Affiliate  any  proprietary
information of a third party without such party's consent.

10. Arbitration.  Any dispute or claim arising out of or in connection with this
Agreement will be finally settled by binding arbitration in San Jose, California
in  accordance  with the rules of the American  Arbitration  Association  by one
arbitrator  appointed in accordance with said rules.  The arbitrator shall apply
California  law,  without  reference  to rules of  conflicts  of law or rules of
statutory arbitration,  to the resolution of any dispute.  Judgment on the award
rendered  by the  arbitrator  may be  entered in any court  having  jurisdiction
thereof.  Notwithstanding the foregoing:  (i) the parties may apply to any court
of competent jurisdiction for preliminary or interim equitable relief, including
injunctive  relief,  or to compel  arbitration in accordance with this paragraph
and (ii) Company may terminate  Employee as set forth in Article 7, in each case
without breach of this arbitration  provision.  Employee agrees that a remedy at
law for any breach of the provisions of Sections 5 or 6 hereof may be inadequate
and that  Company or any  Company  Affiliate  shall be  entitled  to  injunctive
relief,  in addition to any other remedy it might have in the event of breach or
threatened breach of the provisions of Sections 5 or 6 of this Agreement.

11. Assignment. Neither the Company nor Employee may make any assignment of this
Agreement or any interest herein, by operation of law or otherwise,  without the
prior  written  consent of the other;  provided,  however,  that the Company may
assign its rights and  obligations  under this Agreement  without the consent of
Employee in the event that the Company shall hereafter affect a  reorganization,
consolidate   with,  or  merge  into,  any  other  Person  or  transfer  all  or
substantially  all of its  properties  or assets to any  other  Person  and such
Person assumes the  obligations of the Company  hereunder.  This Agreement shall
inure to the  benefit of and be binding  upon the Company  and  Employee,  their
respective successors, executors, administrators, heirs and permitted assigns.

12. Severability.  If any term or provision of this Agreement shall become or be
declared  illegal,  invalid or  unenforceable,  such term or provision  shall be
divisible  from this  Agreement  and shall be  deemed  to be  deleted  from this
Agreement,  provided that if such deletion  substantially  affects or alters the
commercial  basis of this Agreement the parties shall negotiate in good faith to
amend and modify the terms and  provisions  of this  Agreement to give effect to
the original intent of the parties.

13. Waiver.  No waiver of any provision hereof shall be effective unless made in
writing and signed by the waiving party.  The failure of either party to require
the  performance of any term or obligation of this  Agreement,  or the waiver by
either party of any breach of this  Agreement,  shall not prevent any subsequent
enforcement  of such term or obligation or be deemed a waiver of any  subsequent
breach.

14. Notices.  Any and all notices,  requests,  demands and other  communications
provided for by this  Agreement  shall be in writing and shall be effective when
delivered  in person or deposited in the United  States mail,  postage  prepaid,
registered  or certified,  and  addressed to Employee at  Employee's  last known
address on the books of the Company or, in the case of Parent,  at its principal
place of business,  attention of  President,  or to such other address as either
party may specify by notice to the other.

15.  Prior  Agreement  with  Yago.  As of the  Effective  Time,  this  Agreement
supersedes any employment agreement, salary continuation agreement,  commitment,
understanding or arrangements,  express,  implied, oral, or written between Yago
and Employee or any group of employees of Yago, generally (including  Employee),
except for the  Amended  Founder  Stock  Purchase  Agreement  (as defined in the
Merger  Agreement) and except that any agreement  between Yago and Employee,  to
the extent that such agreement relates to  confidentiality  or non-disclosure or
assignment of proprietary rights,  noncompetition or nonsolicitation relating to
Yago's business,  shall remain in full force and effect and inure to the benefit
of the  Company,  and shall be in  addition  to, and not in  limitation  of, the
rights of the Company  hereunder.  The Company  shall have no  obligations  with
respect to any prior  agreements  which may have been executed  between Employee
and Yago other than the Amended Founder Stock Purchase Agreement.

16.  Miscellaneous.  This Agreement constitutes the entire agreement between the
parties and supersedes all prior communications,  agreements and understandings,
written  or oral,  with  respect  to the  terms  and  conditions  of  Employee's
employment.  This  Agreement  may be  amended  or  modified  only  by a  written
instrument  signed by Employee and by a expressly  authorized  representative of
the Company.  The headings and captions in this  Agreement  are for  convenience
only and in no way define or describe  the scope or content of any  provision of
this Agreement. This Agreement may be executed in two or more counterparts, each
of which shall be an original and all of which together shall constitute one and
the same  instrument.  This is a California  contract and shall be construed and
enforced  under  and be  governed  in all  respects  by the laws of the State of
California, without regard to the conflict of laws principles thereof.

IN WITNESS WHEREOF,  this Agreement has been executed as a sealed  instrument by
the Company, by its duly authorized  representative,  and by the Employee, as of
the date first above written.

CABLETRON SYSTEMS, INC.                          EMPLOYEE:



By:      David J. Kirkpatrick                    Piyush Patel
         Senior Vice President and
         Chief Financial Officer


<PAGE>


                                  Exhibit 10.20

                             CABLETRON SYSTEMS, INC.

                              Employment Agreement


AGREEMENT dated as of February 23, 1998 by and between Cabletron  Systems,  Inc.
("Parent"),  a  Delaware  corporation  with an  address  at 35  Industrial  Way,
Rochester,  New Hampshire 03867 and Romulus Pereira,  an individual  residing at
1077 Castleton Way, Sunnyvale, California 94087 (the "Employee").

WHEREAS, Parent, together with its subsidiaries and affiliates (collectively and
singularly as the context requires,  the "Company"),  is engaged in the business
of  developing,  manufacturing,  and selling  products for use in computers  and
computer networks;

WHEREAS,  Parent and Yago Systems,  Inc., a Delaware corporation ("Yago"),  have
entered into an agreement (the "Merger Agreement") pursuant to which inter alia,
a wholly owned subsidiary of Parent will merge with and into Yago; and

WHEREAS,  Employee is, as of the date hereof,  an employee of Yago, and Employee
and the  Parent  desire to set forth the terms  under  which  Employee  shall be
employed by the  Company  from and after the  Effective  Time (as defined in the
Merger Agreement).

NOW,  THEREFORE,  in  consideration  of the  foregoing  premises  and the mutual
promises,  terms,  provisions and conditions  set forth in this  Agreement,  the
parties hereby agree as follows:


1. Employment.  Subject to the terms and conditions set forth in this Agreement,
the Company hereby offers and Employee hereby accepts  employment,  effective as
of the Effective  Time. If, prior to the Effective  Time,  the Merger  Agreement
shall be terminated, this Agreement shall automatically terminate and be without
further force and effect.

2. Term.  Subject to  earlier  termination  as  hereafter  provided,  Employee's
employment  hereunder  shall  commence at the Effective  Time and continue for a
period of eighteen (18) months.  Forty-five (45) days prior to the expiration of
the initial term of this  Agreement or any  extension  thereof,  Employee  shall
provide written notice to the Company of Employee's desire to extend the term of
this  Agreement for an additional  one (1) year period,  whereafter  the Company
shall have fifteen (15) days to either  terminate  this  Agreement in accordance
with the terms hereof or agree to extend this  Agreement by  delivering  written
notice to the Employee; provided, however, any failure by the Company to respond
within the period set forth above shall  result in the  automatic  extension  of
this  Agreement  for such  additional  one (1) year  period.  The "term" of this
Agreement means the initial term and any extension thereof.  Any continuation of
Employee's employment with the Company after the term of this Agreement shall be
at will; provided,  however, that Employee's  obligations under Sections 5 and 6
shall survive any termination or expiration or this Agreement and shall continue
to bind Employee for the duration of Employee's employment with the Company.

3. Capacity and Performance.

3.1.  Offices.  During the term hereof,  Employee  shall hold such positions and
shall perform such duties and  responsibilities  on behalf of the Company as may
be  designated  from  time to time by the  Board of  Directors  of  Parent  (the
"Board"),  the  President  of Parent (the  "President"),  or by their  designees
(collectively, the "Management").

3.2.  Performance.  During the term  hereof,  Employee  shall be employed by the
Company  on a  full-time  basis  and shall  perform  and  discharge  faithfully,
diligently and to the best of his ability such other duties and responsibilities
on behalf of the  Company as may be  designated  from time to time by the Board.
During the term hereof,  the Employee shall devote Employee's full business time
and best efforts,  business  judgment,  skill and knowledge  exclusively  to the
advancement of the business and interests of the Company and to the discharge of
Employee's duties and responsibilities  hereunder.  Employee shall not engage in
any other  activities  directly  related  to the  business  of the  Company  and
determined by the Company to be detrimental to the best interests of the Company
without the prior written consent of the Company. Nothing in this Agreement will
prevent Employee from accepting speaking or presentation engagements in exchange
for  honoraria or from serving on boards of  charitable  organizations,  or from
owning no more than one percent (1%) of the outstanding  equity  securities of a
corporation whose stock is listed on a national stock exchange.

4.  Compensation  and Benefits.  As compensation  for all services  performed by
Employee  under and  during  the term  hereof  and  subject  to  performance  of
Employee's duties and of the obligations of Employee to the Company, pursuant to
this  Agreement,  including  without  limitation,  Sections  5  and  6  of  this
Agreement, or otherwise:

4.1. Base Salary.  During the term hereof, the Company shall pay Employee a base
salary at the rate of $185,000 per annum, payable in accordance with the payroll
practices of the Company for its  employees and subject to increase from time to
time by the Management, in its sole discretion (the "Base Salary").

4.2. Benefits.  During the term hereof and subject to any contribution  therefor
generally  required of employees of the Company,  Employee  shall be entitled to
participate  in any and all employee  benefit  plans from time to time in effect
for employees of the Company generally.  Such participation  shall be subject to
(i) the  terms of the  applicable  plan  documents,  (ii)  generally  applicable
Company policies,  and (iii) the discretion of Management or any  administrative
or other committee provided for in or contemplated by such plan. The Company may
alter, modify, add to or delete its employee benefit plans at any time as it, in
its sole judgment, determines to be appropriate, without recourse by Employee.

4.3. Vacations.  During the term hereof,  Employee shall be entitled to vacation
in accordance with the Parent's  vacation policy as in effect from time to time.
Such  vacation to be taken at such times and intervals as shall be determined by
Employee,  subject to the  reasonable  business  needs of the Company.  Employee
shall be entitled to cash  compensation  for vacation  time not taken during the
term hereof to the extent  approved by the Board or its  Management  in writing.
For purposes of calculating the vacation for which Employee is eligible pursuant
to Parent's  vacation  policy  only,  Employee's  employment  with Yago shall be
deemed to be employment by the Company. In addition, up to two weeks of vacation
accrued but not taken while an employee of Yago will be assumed by the Company.

4.4. Tax  Withholding.  All payments  made by the Company  under this  Agreement
shall be reduced by any tax or other  amounts  required  to be  withheld  by the
Company under applicable law.

4.5.  Business  Expenses.  The Company  shall pay or reimburse  Employee for all
reasonable,  customary  and  necessary  business  expenses  incurred  or paid by
Employee in the performance of Employee's duties and responsibilities hereunder,
subject to any expense policy set by the Management  and other  restrictions  on
such  expenses  set by the  Board  and to  such  reasonable  substantiation  and
documentation as may be specified by the Company from time to time.

5. Intellectual Property.

5.1.  Assignment  of  Inventions.  Subject to the  provisions of this Section 5,
Employee hereby assigns and agrees to assign to the Company, all rights,  titles
and interests in and to any inventions,  formulae,  data, programs,  techniques,
processes,   ideas,   algorithms,   discoveries,   designs,   developments   and
improvements  that  Employee  may make,  reduce to practice,  conceive,  invent,
discover,  design or otherwise acquire, whether alone or with others, (i) during
Employee's employment by Company, relating to the business,  products,  research
or development (to the extent known by Employee) of the Company or (ii) required
to  be  assigned  to  Yago  under  any  agreement   between  Yago  and  Employee
(collectively,  "Inventions").  This  Agreement  does not apply to an  Invention
which  qualifies  fully as a  nonassignable  Invention  under the  provisions of
Section 2870 of the California Labor Code as follows:  "THIS IS TO NOTIFY you in
accordance  with  Section 2872  of the California  Labor Code that the foregoing
Agreement between you and the Company does not require you to assign or offer to
assign to the Company any invention that you developed entirely on your own time
without  using the  Company's  equipment,  supplies,  facilities or trade secret
information  except for those inventions that either:  (1) relate at the time of
conception or reduction to practice of the invention to the Company's  business,
or actual or demonstrably anticipated research or development of the Company; or
(2)  result  from any work  performed  by you for the  Company.  To the extent a
provision  in the  foregoing  Agreement  purports  to  require  you to assign an
invention  otherwise  excluded  from the preceding  paragraph,  the provision is
against  the public  policy of this  state and is  unenforceable.  This  limited
exclusion  does not  apply to any  patent or  invention  covered  by a  contract
between the Company and the United States or any of its agencies  requiring full
title to such patent or invention to be in the United States."

Employee agrees that Inventions relating to the business,  products, research or
development  (to the extent known by Employee) of the Company  conceived or made
by me while an employee  of the Company  belong to and are to be assigned to the
Company,  regardless of whether such Invention is reduced to practice  during my
employment  or after  termination  thereof,  and  Employee  agrees  to  disclose
promptly in writing to the Company all such Inventions.

5.2.   Confidential   Information.   Employee   shall  regard  and  preserve  as
confidential   all   Confidential   Information.   For  the   purposes   hereof,
"Confidential  Information"  shall mean any and all  information  of the Company
that is not generally known by others with whom it competes or does business, or
with  whom it plans to  compete  or to do  business.  Subject  to the  foregoing
limitation as to generally known information, Confidential Information includes,
without  limitation,  information  relating  to (i) the  development,  research,
testing,  marketing  and financial  activities of the Company;  (ii) any and all
versions of the Company's proprietary computer software,  hardware, firmware and
documentation;   (iii)   other   proprietary   software,   hardware,   firmware,
documentation and information created, developed, produced or distributed by the
Company (including,  without limiting the generality of the foregoing,  any such
software, hardware, firmware,  documentation and information created, developed,
produced, distributed or made known by the Company to Employee during the period
of or arising  out of  Employee's  service to the  Company);  (iv) the manner in
which  the  Company  operates,  (v) the  costs,  sources  of  supply,  financial
performance  and strategic  plans of the Company,  (vi) the identity and special
needs  of the  customers  or  suppliers  of  the  Company,  (vii)  confidential,
proprietary or trade secret  information  submitted by the Company's  suppliers,
employees, consultants to or co-venturers with the Company for study, evaluation
or use; (viii) the people and  organizations  with whom the Company has business
relationships and the nature of those relationships;  and (ix) the identities of
employees of the Company.

Confidential  Information  shall not include any  information  that:  (i) was or
becomes  generally  known in the trade or business of the Company through no act
of Employee or its employees,  agents, or independent  contractors;  or (ii) has
come  into  the  possession  of  Employee  from a third  party  who is  under no
obligation to maintain the confidentiality of such information.

Employee shall not, without written authority from the Company to do so, use for
Employee's  own benefit or purposes,  or the benefit or purpose of any person or
entity other than the Company, nor disclose to others,  either during Employee's
employment with the Company or at any time thereafter, except as required in the
course of employment with the Company, any Confidential Information.

5.3. Works of Authorship.  Employee agrees that any original works of authorship
including, without limitation, all documents,  blueprints,  drawings, mask works
and computer programs (including,  without limitation,  all software,  firmware,
object code, source code, documentation, specifications, revisions, supplements,
modules, and upgrades)  conceived,  created,  performed,  or produced during the
term of  Employee's  employment  with the Company and all foreign and  domestic,
registered and  unregistered,  copyrights and mask work rights and  applications
for registrations therefor related to any such work of authorship, in each case,
whether or not made during regular working hours,  relating to the actual or (to
the  extent  known  to  Employee)  planned  business,   products,   research  or
development  of  Company  (collectively  "Works  of  Authorship")  shall  be the
exclusive  property  of the  Company,  as the case may be.  To the  extent  that
Employee  has or obtains  any  right,  title or  interest  in or to any Works of
Authorship during the term of his employment, Employee hereby assigns and agrees
to assign  to the  Company,  as the case may be,  all of such  right,  title and
interest therein and thereto.

5.4.  Disclosure.  Employee  shall  promptly  and  fully  disclose  any  and all
Inventions and Works of Authorship to Employee's supervisor or such other person
as the Company may designate for such purpose.

5.5. Further Assistance.  Employee shall, during Employee's  employment with the
Company  and at any time  thereafter,  upon the request of and at the expense of
the Company, but at no additional  compensation to Employee (except for time and
direct  expense if Employee is not  employed at the Company at that time) do all
acts and things,  including, but not limited to, making and executing documents,
applications and instruments and giving information and testimony, in each case,
deemed by the Company form time to time, in its sole discretion, to be necessary
or appropriate (i) to vest, secure, defend, protect or evidence the right, title
and  interest  of the  Company  in  and to any  and  all  Inventions,  Works  of
Authorship and Confidential  Information;  and (ii) to obtain for the Company in
relation  to  all  such  letters  patent,  design   registrations,   copyrights,
registrations  and/or  mask work  registrations,  in the  United  States and any
foreign countries, and/or any reissues, renewals and/or extensions thereof.

5.6. Previous Obligations.  Employee represents and warrants to the Company that
Employee's  assignment  of  Inventions  or  Works of  Authorship  will not be in
violation of the provisions of any agreement  between  Employee and any previous
employer  (other than Yago),  nor does Employee  claim any existing title in any
previous unpatented Inventions, developments, improvements or Work of Authorship
within the scope of this  Agreement (or that would have been within the scope of
this Agreement had it been in effect during the term of Employee's employment by
Yago).

5.7.  Return  of  Documents.  All  media  on  which  any  Inventions,  Works  of
Authorship,  or Confidential Information may be recorded or located,  including,
without  limitation,   documents,  samples,  models,  blueprints,   photocopies,
photographs,  drawings,  descriptions,  reproductions,  cards,  tapes, discs and
other storage facilities (collectively "Documentation") made by Employee or that
come into  Employee's  possession  by reason of Employee's  employment  with the
Company  are the  property  of the  Company,  as the case may be,  and  shall be
returned to the Company by Employee upon  termination  of  employment.  Employee
will  not  deliver,  reproduce,  or in any way  allow  any  Documentation  to be
delivered or used by any third party without the written direction or consent of
a duly authorized representative of the Company.

6. Covenant Not To Compete.

6.1. Non-Compete.  Employee covenants and agrees that for so long as he shall be
employed by the  Company,  and for a period of eighteen  (18) months  after such
termination  of  employment   pursuant  to  this  Agreement  or  otherwise  (the
"Non-Competition  Period"),  the Employee shall not, directly or indirectly,  as
principal, partner, agent, servant, employee, stockholder, or otherwise anywhere
in the world, engage or attempt to engage in any business activity involving the
design,  manufacture,  distribution or sale to LAN and/or WAN markets of gigabit
ethernet switching and/or routing products (the "Competing Business"); provided,
however,  nothing in this  Section 6.1 shall  prevent  Employee  from  accepting
employment  during  the  Noncompetition  Period  with a  company  involved  in a
Competing Business so long as Employee shall not directly or indirectly consult,
assist or otherwise  work in the division of such other  company  involving  the
Competing  Business;  provided,  further,  the  Employee  shall  not  under  any
circumstance accept employment during the Noncompetition Period with Cisco, Inc.
3Com, Inc. and Bay Networks,  Inc. The foregoing shall not prohibit  Employee or
his  spouse  or  children  and from  owning  beneficially  any  publicly  traded
security,  so long as the beneficial  ownership by them,  when combined with the
beneficial  ownership of such publicly traded security of any group (as the term
is used in Section 13(D) of the Securities Exchange Act of 1934) of which any of
them is a member  constitutes  (x) less than Five  Percent  (5%) of the class of
such publicly  traded  security or (y) less than Five Percent (5%) of the voting
power of all outstanding securities of the issuer of such security.

6.2. Non-Solicitation. Employee agrees that for as long as he or she is employed
by the  Company  and  through  the  Non-Competition  Period,  Employee  will not
solicit, recruit, or induce any other person to solicit or recruit, any employee
of the Company  (including  any person who was an  employee of Yago)  within the
sixty (60) day period  immediately  preceding the date hereof or was an employee
during the period of Employee's  employment hereunder for one year following the
end of such employee's  employment with Yago or the Company, as the case may be,
or  otherwise  induce any  employee  to leave the  employment  of the Company to
become an employee of or  otherwise  be  associated  with a business  with which
Employee is associated.

Employee further agrees that during the  Non-Competition  Period,  Employee will
not, in competition with the Company,  solicit business from any customer of the
Company made known to Employee during his employment with the Company.

6.3. Reasonableness of Restrictions.  Employee recognizes that the consideration
to be paid and all other obligations of the Company to be performed  pursuant to
this Agreement are intended, in significant part, to secure Employee's agreement
to the conditions of this Section 6, and Employee  recognizes that the foregoing
territorial and time  limitations  are reasonable and properly  required for the
adequate  protection  of the business of the Company and any Company  Affiliates
and that in the event that any such  territorial or time limitation is deemed to
be unreasonable by any California tribunal having jurisdiction,  Employee agrees
to submit to the reduction of either said territorial or time limitation to such
an area or period as shall be deemed reasonable by such tribunal.

7.  Termination  of  Employment  and  Severance  Benefits.  Notwithstanding  the
provisions of Section 2 hereof,  Employee's employment hereunder shall terminate
prior to the expiration of the term under the following circumstances:

7.1. Retirement or Death. In the event of Employee's  retirement or death during
the  term  hereof,   Employee's   employment  hereunder  shall  immediately  and
automatically  terminate.  During the term hereof,  Employee may elect to retire
after the age of sixty-five  with the prior written consent of the Board and, in
that  event,  shall be paid any earned and unpaid Base Salary that is earned but
unpaid  prorated  through  the date of  Employee's  retirement.  In the event of
Employee's  death during the term hereof,  the Company  shall pay to  Employee's
designated beneficiary or, if no beneficiary has been designated by Employee, to
his estate,  any earned and unpaid Base Salary,  and accrued but unused vacation
time that is earned but unpaid, pro-rated through the date of Employee's death.

7.2. Disability.

7.2.1. The Company may terminate Employee's employment hereunder, upon notice to
Employee,  in  the  event  that  Employee  becomes  disabled  during  Employee's
employment  hereunder  through any  illness,  injury,  accident or  condition of
either a physical or psychological nature and, as a result, is unable to perform
substantially all of Employee's duties and responsibilities hereunder for either
(a) sixty (60)  consecutive  calendar  days or (b) an  aggregate  of one hundred
twenty  (120) days  during  any period of three  hundred  and  sixty-five  (365)
consecutive calendar days.

7.2.2.  The Board may  designate  another  employee to act in  Employee's  place
during  any  period  of   Employee's   disability.   Notwithstanding   any  such
designation,  Employee  shall  continue to receive the Base Salary in accordance
with  Section 4.1 and  benefits in  accordance  with  Section 4.2, to the extent
permitted by the  then-current  terms of the  applicable  benefit  plans,  until
Employee  becomes  eligible for disability  income  benefits under the Company's
disability  income  plan or until  the  termination  of  Employee's  employment,
whichever shall first occur. Upon termination of the Employee's employment under
this  Section the Company  shall also pay to Employee  any  accrued,  but unused
vacation.

7.2.3. While receiving disability income payments under the Company's disability
income  plan,  Employee  shall not be entitled to receive any Base Salary  under
Section 4.1,  but shall  continue to  participate  in Company  benefit  plans in
accordance  with Section 4.2 and the terms of such plans,  until the termination
of Employee's employment.

7.2.4.  If any question shall arise as to whether during any period  Employee is
disabled through any illness, injury, accident or condition of either a physical
or  psychological  nature  so as to be unable to  perform  substantially  all of
Employee's  duties and  responsibilities  hereunder,  Employee  may,  and at the
request of the Company  shall,  submit to a medical  examination  by a physician
selected by the Company, to whom Employee or Employee's duly appointed guardian,
if any,  has no  reasonable  objection,  to  determine  whether  Employee  is so
disabled  and such  determination  shall for the  purposes of this  Agreement be
conclusive of the issue. If such question shall arise and Employee shall fail to
submit to such medical  examination,  the Company's  determination  of the issue
shall be binding on Employee.

7.3. By the Company for Cause. The Company may terminate  Employee's  employment
hereunder  for  Cause at any time  upon  notice  to  Employee  setting  forth in
reasonable detail the nature of such Cause. The following,  as determined by the
Board in its reasonable judgment, shall constitute Cause for termination:

7.3.1.  Material breach of this Employment Agreement after Employee has received
written  notice of such breach and has not cured such  breach  within 30 days of
receipt of such notice;

7.3.2.  Dishonest or fraudulent conduct, a deliberate attempt to do an injury to
Cabletron,  or conduct that  materially  discredits  Cabletron or is  materially
detrimental to the reputation of Cabletron, including conviction of a felony; or

7.3.3.  Employee's  incurable  material breach of any element of the Cabletron's
Confidential  Information,   Non-Compete  and  Invention  Assignment  Agreement,
including without limitation,  employee's theft or other misappropriation of the
Company's proprietary information.

Upon termination of Employee's employment hereunder for Cause, the Company shall
have no further obligation or liability to Employee,  other than for Base Salary
earned  and  unpaid at the date of  termination  as well as  accrued  but unused
vacation.

7.4. By the Company Other than for Cause.  The Company may terminate  Employee's
employment  hereunder  other than for Cause at any time upon notice to Employee.
In the event of such  termination,  and provided  that no  comparable  or better
benefits  are payable to Employee  under a separate  severance  agreement  or an
executive  severance  plan as a  result  of such  termination,  then  until  the
conclusion of a period equal to the remainder of the  then-current  term of this
Agreement  (the  "Severance  Period"),  the  Company  shall (a)  continue to pay
Employee  the Base Salary at the rate in effect on the date of  termination  and
(b) subject to any employee  contribution  applicable to Employee on the date of
termination,   shall   continue  to   contribute   to  the  cost  of  Employee's
participation  in the  Company's  group  medical  and  dental  insurance  plans,
provided  that  Employee  is  entitled  to  continue  such  participation  under
applicable law and plan terms, provided that if any salary and benefits are paid
under this  sentence,  Employee shall not be entitled to any salary and benefits
under any other  severance  agreement or executive  severance plan. In addition,
upon any  termination  of Employee  pursuant to this  Section 7.4, all shares of
Common Stock and stock options of the Company  owned or granted to Employee,  as
the case may be, shall vest  immediately and any repurchase  rights with respect
thereto shall lapse. Further, if Employee is terminated pursuant to this Section
7.4 under any  circumstance,  including but not limited to, as part of a general
layoff by the  Company,  the  provisions  of Section 6.1 shall have no force and
effect.

7.5. By Employee for Good Reason.  Employee may terminate Employee's  employment
hereunder  for  Good  Reason,  upon  notice  to the  Company  setting  forth  in
reasonable detail the nature of such Good Reason. The following shall constitute
Good Reason for termination by Employee:

7.5.1.   Material   diminution   in  the   nature   or   scope   of   Employee's
responsibilities,  duties or authority; provided, however, the Company's failure
to  continue  Employee's  appointment  or  election  as a director or officer of
Parent or any of the  subsidiaries or affiliates of Parent and any diminution of
the business of the Company,  including without  limitation the sale or transfer
of any or all of the assets of the Company,  shall not constitute "Good Reason";
or

7.5.2.  Material  failure of the Company to provide Employee the Base Salary and
benefits in accordance with the terms of Section 4 hereof,  which failure is not
cured within thirty (30) days written notice thereof by Employee to the Company.

7.5.3. Termination of Employee's employment as a result of Employee's refusal to
consent the relocation of Employee's  principal place of employment to more than
60 miles from Sunnyvale, California.

In the event of  termination  in accordance  with this Section 7.5, and provided
that no comparable or better  benefits are payable to Employee  under a separate
severance  agreement  or  an  executive  severance  plan  as a  result  of  such
termination,  then until the end of the Severance Period,  the Company shall (a)
continue  to pay  Employee  the Base Salary at the rate in effect on the date of
termination and (b) subject to any employee contribution  applicable to Employee
on the  date  of  termination,  shall  continue  to  contribute  to the  cost of
Employee's  participation  in the Company's  group medical and dental  insurance
plans,  provided that Employee is entitled to continue such participation  under
applicable  state and  federal  law and plan terms,  provided  that  Employee is
entitled to continue such  participation  under  applicable  law and plan terms,
provided that if any salary and benefits are paid under this sentence,  Employee
shall not be  entitled  to any salary  and  benefits  under any other  severance
agreement or executive  severance  plan. In addition,  upon any  termination  of
Employee  pursuant to this  Section  7.5,  all shares of Common  Stock and stock
options of the Company  owned or granted to Employee,  as the case may be, shall
vest immediately and any repurchase rights with respect thereto shall lapse.

7.6. By Employee Other than for Good Reason.  Employee may terminate  Employee's
employment  hereunder  at any time upon thirty (30) days' notice to the Company,
unless such termination  would violate any obligation of Employee to the Company
under a separate  severance  agreement.  In the event of termination of Employee
pursuant  to this  Section  7.6,  Management  may elect to waive  the  period of
notice, or any portion thereof,  and, if Management so elects,  the Company will
pay Employee his Base Salary for the notice period, plus any accrued, but unused
vacation.   If  Employee  shall  voluntarily   terminate  Employee's  employment
hereunder,  the  Company  shall  have no  further  obligation  or  liability  to
Employee,  other  than  for  Base  Salary  earned  and  unpaid  at the  date  of
termination,  accrued  but  unused  vacation  and as  specifically  set forth in
Section 8.1 hereof.

7.7. Post-Agreement  Employment.  In the event Employee remains in the employ of
the  Company or any of the  Company  Affiliates  following  termination  of this
Agreement,  by the  expiration  of the term or otherwise,  then such  employment
shall be at will.

8.  Effect of  Termination.  The  provisions  of this  Section 8 shall  apply to
termination  due to the  expiration  of  the  term,  pursuant  to  Section  7 or
otherwise.

8.1. Payment by the Company of any Base Salary, accrued, but unused vacation and
contributions to the cost of Employee's continued participation in the Company's
group  health and dental  plans that may be due  Employee in each case under the
applicable  termination  provision  of  Section 7 shall  constitute  the  entire
obligation of the Company to Employee.  Acceptance by Employee of performance by
the Company shall  constitute  full settlement of any claim under this Agreement
that Employee might otherwise assert against the Company, the Company Affiliates
or any of their  shareholders,  directors,  officers,  employees  or  agents  on
account of such termination.  Employee shall promptly give the Company notice of
all facts  necessary for the Company to determine the amount and duration of its
obligations in connection  with any  termination  pursuant to Section 7.4 or 7.5
hereof.

8.2.  Except for medical and dental  insurance  coverage  continued  pursuant to
Section 7.4 or Section  7.5 hereof,  benefits  shall  terminate  pursuant to the
terms of the  applicable  benefit  plans  based on the  date of  termination  of
Employee's employment without regard to any continuation of Base Salary or other
payment to Employee following such date of termination.

8.3.  Provisions of this Agreement  shall survive any termination if so provided
herein or if  necessary or desirable  fully to  accomplish  the purposes of such
provision,  including  without  limitation  the  obligations  of Employee  under
Sections 6 hereof.  The  obligation  of the  Company to make  payments  to or on
behalf of Employee under Section 7.4, 7.5 or 7.6 hereof is expressly conditioned
upon Employee's continued full performance of obligations under Sections 5 and 6
hereof. Employee recognizes that, except as expressly provided in Section 7.4 or
7.5, no compensation is earned after termination of employment.

9.  Conflicting  Agreements.  Employee  hereby  represents and warrants that the
execution  of this  Agreement  and the  performance  of  Employee's  obligations
hereunder  will not breach or be in conflict  with any other  agreement to which
Employee  is a party or is bound and that  Employee  is not now  subject  to any
covenants  against  competition  or  similar  covenants  that  would  affect the
performance of Employee's obligations  hereunder.  Employee will not disclose to
or use on  behalf  of the  Company  or any  Company  Affiliate  any  proprietary
information of a third party without such party's consent.

10. Arbitration.  Any dispute or claim arising out of or in connection with this
Agreement will be finally settled by binding arbitration in San Jose, California
in  accordance  with the rules of the American  Arbitration  Association  by one
arbitrator  appointed in accordance with said rules.  The arbitrator shall apply
California  law,  without  reference  to rules of  conflicts  of law or rules of
statutory arbitration,  to the resolution of any dispute.  Judgment on the award
rendered  by the  arbitrator  may be  entered in any court  having  jurisdiction
thereof.  Notwithstanding the foregoing:  (i) the parties may apply to any court
of competent jurisdiction for preliminary or interim equitable relief, including
injunctive  relief,  or to compel  arbitration in accordance with this paragraph
and (ii) Company may terminate  Employee as set forth in Article 7, in each case
without breach of this arbitration  provision.  Employee agrees that a remedy at
law for any breach of the provisions of Sections 5 or 6 hereof may be inadequate
and that  Company or any  Company  Affiliate  shall be  entitled  to  injunctive
relief,  in addition to any other remedy it might have in the event of breach or
threatened breach of the provisions of Sections 5 or 6 of this Agreement.

11. Assignment. Neither the Company nor Employee may make any assignment of this
Agreement or any interest herein, by operation of law or otherwise,  without the
prior  written  consent of the other;  provided,  however,  that the Company may
assign its rights and  obligations  under this Agreement  without the consent of
Employee in the event that the Company shall hereafter affect a  reorganization,
consolidate   with,  or  merge  into,  any  other  Person  or  transfer  all  or
substantially  all of its  properties  or assets to any  other  Person  and such
Person assumes the  obligations of the Company  hereunder.  This Agreement shall
inure to the  benefit of and be binding  upon the Company  and  Employee,  their
respective successors, executors, administrators, heirs and permitted assigns.

12. Severability.  If any term or provision of this Agreement shall become or be
declared  illegal,  invalid or  unenforceable,  such term or provision  shall be
divisible  from this  Agreement  and shall be  deemed  to be  deleted  from this
Agreement,  provided that if such deletion  substantially  affects or alters the
commercial  basis of this Agreement the parties shall negotiate in good faith to
amend and modify the terms and  provisions  of this  Agreement to give effect to
the original intent of the parties.

13. Waiver.  No waiver of any provision hereof shall be effective unless made in
writing and signed by the waiving party.  The failure of either party to require
the  performance of any term or obligation of this  Agreement,  or the waiver by
either party of any breach of this  Agreement,  shall not prevent any subsequent
enforcement  of such term or obligation or be deemed a waiver of any  subsequent
breach.

14. Notices.  Any and all notices,  requests,  demands and other  communications
provided for by this  Agreement  shall be in writing and shall be effective when
delivered  in person or deposited in the United  States mail,  postage  prepaid,
registered  or certified,  and  addressed to Employee at  Employee's  last known
address on the books of the Company or, in the case of Parent,  at its principal
place of business,  attention of  President,  or to such other address as either
party may specify by notice to the other.

15.  Prior  Agreement  with  Yago.  As of the  Effective  Time,  this  Agreement
supersedes any employment agreement, salary continuation agreement,  commitment,
understanding or arrangements,  express,  implied, oral, or written between Yago
and Employee or any group of employees of Yago, generally (including  Employee),
except for the  Amended  Founder  Stock  Purchase  Agreement  (as defined in the
Merger  Agreement) and except that any agreement  between Yago and Employee,  to
the extent that such agreement relates to  confidentiality  or non-disclosure or
assignment of proprietary rights,  noncompetition or nonsolicitation relating to
Yago's business,  shall remain in full force and effect and inure to the benefit
of the  Company,  and shall be in  addition  to, and not in  limitation  of, the
rights of the Company  hereunder.  The Company  shall have no  obligations  with
respect to any prior  agreements  which may have been executed  between Employee
and Yago other than the Amended Founder Stock Purchase Agreement.

16.  Miscellaneous.  This Agreement constitutes the entire agreement between the
parties and supersedes all prior communications,  agreements and understandings,
written  or oral,  with  respect  to the  terms  and  conditions  of  Employee's
employment.  This  Agreement  may be  amended  or  modified  only  by a  written
instrument  signed by Employee and by a expressly  authorized  representative of
the Company.  The headings and captions in this  Agreement  are for  convenience
only and in no way define or describe  the scope or content of any  provision of
this Agreement. This Agreement may be executed in two or more counterparts, each
of which shall be an original and all of which together shall constitute one and
the same  instrument.  This is a California  contract and shall be construed and
enforced  under  and be  governed  in all  respects  by the laws of the State of
California, without regard to the conflict of laws principles thereof.


IN WITNESS WHEREOF,  this Agreement has been executed as a sealed  instrument by
the Company, by its duly authorized  representative,  and by the Employee, as of
the date first above written.

CABLETRON SYSTEMS, INC.                             EMPLOYEE:


By:   David J. Kirkpatrick                          Romulus Pereira
      Senior Vice President and
      Chief Financial Officer



<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
This  schedule  contains  summary  financial   information  extracted  from  the
consolidated  balance  sheet,  consolidated  statement  of  operations  and  the
consolidated statement of cash flows included in the Company's Form 10-Q for the
period  ending May 31,  1999,  and is  qualified in its entirety by reference to
such financial statements.
</LEGEND>
<CIK>                    0000846909
<NAME>                   CABLETRON SYSTEMS, INC.
<MULTIPLIER>                                   1,000
<CURRENCY>                                     U.S. DOLLARS

<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                              FEB-28-2000
<PERIOD-START>                                 MAR-01-1999
<PERIOD-END>                                   MAY-31-1999
<EXCHANGE-RATE>                                1.00
<CASH>                                           129,392
<SECURITIES>                                      97,885
<RECEIVABLES>                                    242,361
<ALLOWANCES>                                      21,756
<INVENTORY>                                      216,657
<CURRENT-ASSETS>                                 777,121
<PP&E>                                           281,826
<DEPRECIATION>                                   109,774
<TOTAL-ASSETS>                                 1,533,730
<CURRENT-LIABILITIES>                            442,913
<BONDS>                                        0
                          0
                                    0
<COMMON>                                           1,736
<OTHER-SE>                                     1,076,882
<TOTAL-LIABILITY-AND-EQUITY>                   1,078,618
<SALES>                                          349,533
<TOTAL-REVENUES>                                 349,533
<CGS>                                            212,615
<TOTAL-COSTS>                                    212,615
<OTHER-EXPENSES>                                 176,895
<LOSS-PROVISION>                               0
<INTEREST-EXPENSE>                                (4,068)
<INCOME-PRETAX>                                  (35,909)
<INCOME-TAX>                                     (13,384)
<INCOME-CONTINUING>                              (22,525)
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                     (22,525)
<EPS-BASIC>                                      (0.13)
<EPS-DILUTED>                                      (0.13)




</TABLE>


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