RIVERSTONE NETWORKS INC
S-1/A, EX-2.1, 2000-12-04
COMPUTER COMMUNICATIONS EQUIPMENT
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                                                                     Exhibit 2.1
                                                                     -----------

                 AMENDED AND RESTATED TRANSFORMATION AGREEMENT

     This Amended and Restated Transformation Agreement (this "Agreement") is
entered into as of June 3, 2000 (the "Effective Date") by and among Cabletron
Systems, Inc., a  Delaware corporation ("CSI"), Aprisma Management Technologies,
Inc., a  Delaware corporation ("Aprisma"), Enterasys Networks, Inc., a  Delaware
corporation ("Enterasys"), GlobalNetwork Technology Services, Inc., a Delaware
corporation ("GNTS") and Riverstone Networks, Inc., a  Delaware corporation
("Riverstone" and  collectively with Aprisma, Enterasys and GNTS, the "Newcos").
Capitalized terms used herein and not otherwise defined shall have the meanings
ascribed to such terms in Section 8 hereof.

                                    RECITALS

     WHEREAS, CSI currently owns all of the issued and outstanding capital stock
of each Newco;

     WHEREAS, it is currently contemplated that (i) Compaq Computer Corporation
will invest $14 million in preferred stock of Aprisma and (ii) Silver Lake
Partners, L.P. and other investors will invest in certain purchase rights and
warrants with respect to the equity securities of the Newcos;

     WHEREAS, subject to the approval of the stockholders of CSI, the parties
have each determined that it would be appropriate and desirable, in accordance
with the Contribution Agreements, for CSI to contribute and transfer to each
Newco, and for such Newco, to receive and assume, directly or indirectly,
certain assets and liabilities currently held by CSI and its affiliates and
associated with the Aprisma Business in the case of Aprisma, the GNTS Business
in the case of the GNTS, the Riverstone Business in the case of Riverstone and
the Enterasys Business in the case of Enterasys and to consummate the other
transactions contemplated hereby (the "Transformation");

     WHEREAS, the Board of Directors of CSI has determined that the
Transformation will provide flexibility to better develop and implement other
strategic transactions designed to maximize the long-term competitive and
strategic advantages of CSI's products and services by separating the operations
associated with the Aprisma Business, the Enterasys Business, the GNTS Business
and the Riverstone Business;

     WHEREAS, CSI has announced that it currently plans to conduct an initial
public offering ("IPO") for each of the Newcos followed by a distribution (a
"Distribution") of the remaining shares of one or more of the Newcos to CSI's
stockholders, although CSI is not obligated to complete any such transactions
and will only implement any such transactions if the Board of Directors of CSI
continues to believe that it is in the best interests of CSI, CSI's stockholders
and the Newcos; and
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     WHEREAS, the parties intend in this Agreement, including the Exhibits
hereto, to set forth the principal arrangements between them regarding the
Transformation; and

     WHEREAS, the parties desire to amend and restate this and certain Ancillary
Agreements as of the Effective Date to correct certain mutual mistakes of the
parties and to clarify their rights and obligations under this Agreement and the
Ancillary Agreements.

     NOW, THEREFORE, in consideration of the foregoing and the covenants and
agreements set forth below, the parties hereto agree as follows:

1.  DOCUMENTS AND ITEMS TO BE DELIVERED ON THE EFFECTIVE DATE

On the Effective Date, concurrent with the execution and delivery hereof, each
of the parties will duly execute and deliver to each other party which is a
party thereto all of the following items and agreements to which it is a party
(collectively, together with all agreements and documents contemplated by such
agreements, the "Ancillary Agreements"):

        1.1.  An Amended and Restated Asset Contribution Agreement between CSI
              and Aprisma (the "Aprisma Contribution Agreement") substantially
              in the form of Exhibit A-1;

        1.2.  An Amended and Restated Asset Contribution Agreement between CSI
              and Enterasys (the "Enterasys Contribution Agreement")
              substantially in the form of Exhibit A-2;

        1.3.  An Amended and Restated Asset Contribution Agreement between CSI
              and GNTS (the "GNTS Contribution Agreement") substantially in the
              form of Exhibit A-3;

        1.4.  An Amended and Restated Asset Contribution Agreement between CSI
              and Riverstone (the "Riverstone Contribution Agreement" and
              collectively with the agreements referenced in Sections 1.1 to 1.3
              above, the "Contribution Agreements") substantially in the form of
              Exhibit A-4;

        1.5.  An Intercompany Agreement between Aprisma and Enterasys (the "A-E
              Intercompany Agreement") substantially in the form of Exhibit B-1
              attached hereto;

        1.6.  An Intercompany Agreement between Aprisma and GNTS (the "A-G
              Intercompany Agreement") substantially in the form of Exhibit B-2
              attached hereto;

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        1.7.  An Intercompany Agreement between Aprisma and Riverstone (the "A-R
              Intercompany Agreement") substantially in the form of Exhibit B-3
              attached hereto;

        1.8.  An Intercompany Agreement between Enterasys and GNTS (the "E-G
              Intercompany Agreement") substantially in the form of Exhibit B-4
              attached hereto;

        1.9.  An Intercompany Agreement between Enterasys and Riverstone (the
              "E-R Intercompany Agreement") substantially in the form of Exhibit
              B-5 attached hereto;

        1.10. An Intercompany Agreement between GNTS and Riverstone (the "G-R
              Intercompany Agreement") substantially in the form of Exhibit B-6
              attached hereto;

        1.11. A Tax Sharing Agreement among CSI and all Newcos (the "Tax Sharing
              Agreement") substantially in the form of Exhibit C; and

        1.12. A Flextronics Assignment and Assumption Agreement (the
              "Manufactured Products Agreement") between CSI and Enterasys
              substantially in the form of Exhibit D hereto.

2.   TRANSFORMATION

        2.1. Effective Date. The parties acknowledge and agree that the Newcos,
             either as separate entities or through their predecessor divisions
             of CSI, will conduct business in accordance with the terms and
             conditions hereof and of the Ancillary Agreements from and after
             the Effective Date.

        2.2. Transformation Date. Subject to the approval of the Transformation
             by the stockholders of CSI and the other conditions set forth in
             Section 7 hereof and in the Ancillary Agreements, the effective
             time and date of the Transformation and the consummation of the
             transactions contemplated hereby and by the Ancillary Agreements
             shall be 11:59 p.m., Boston Time, July 29, 2000 or such other date
             as may be fixed by CSI (the "Transformation Date"). To the extent
             that any Contribution Agreement provides for the transfer of assets
             or liabilities held by a Subsidiary of CSI, the capital stock of
             which is to be transferred to a Newco other than that Newco to
             which such assets or liabilities are to be transferred, the
             transfer of such assets and liabilities shall occur immediately
             prior to the transfer of the capital stock of such Subsidiary.

        2.3. Closing of Transactions. The closing of the transactions
             contemplated hereby and by the Ancillary Agreements (the "Closing")
             shall occur on the Transformation Date at the offices of Ropes &
             Gray, One International

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             Place, Boston, Massachusetts 02110, by the execution and delivery
             of the instruments of transfer, assumptions of liability,
             undertakings, agreements, instruments or other documents to be
             delivered on the Transformation Date pursuant to this Agreement and
             the Ancillary Agreements.

3.   POST-TRANSFORMATION TRANSACTIONS INVOLVING THE NEWCOS

        3.1. Discretion of CSI. No Newco shall commence or consummate an IPO
             without the approval of CSI and all terms, including the timing of,
             an IPO shall be subject to CSI's approval. CSI shall, in its sole
             and absolute discretion, determine whether to consummate a
             Distribution with respect to any Newco and the terms and conditions
             of any such Distribution. The parties acknowledge that (i) CSI is
             not obligated to complete any such IPO or Distribution and will
             only implement any such transaction if the Board of Directors of
             CSI continues to believe that it is in the best interest of CSI,
             CSI's stockholders and the Newcos and (ii) CSI may pursue other
             strategic alternatives in lieu of an IPO and/or Distribution with
             respect to any Newco.

        3.2. IRS Ruling. The parties acknowledge that CSI currently plans to
             seek a private letter ruling from the Internal Revenue Service to
             the effect that (i) Section 355 of the Code will apply to a
             Distribution of Newco stock by CSI to CSI's stockholders; and (ii)
             no gain or loss will be recognized by (and no amounts will be
             included in the income of) the stockholders of CSI upon their
             receipt of Newco stock pursuant to the Distribution.

        3.3. Cooperation. If requested by CSI, each Newco shall cooperate with
             CSI in all respects to accomplish an IPO and Distribution with
             respect to such Newco and shall, at CSI's direction, promptly take
             any and all actions necessary or desirable to effect such IPO or
             Distribution, including, without limitation: filing a registration
             statement with respect to the IPO under the Securities Act,
             including any amendments thereto as may be required; making any
             filings under the Exchange Act; entering into an underwriting
             agreement with respect to the IPO; preparing an information
             statement with respect to the Distribution; filing any documents
             with the Commission as may be required with respect to an IPO or
             Distribution; listing the stock of such Newco on the Nasdaq
             National Market or a stock exchange selected by CSI; and obtaining,
             and complying with the terms of, any private letter ruling from the
             Internal Revenue Service as described in Section 3.2 above. CSI
             shall select any underwriter(s), investment banker(s) and
             manager(s) in connection with an IPO and Distribution, as well as
             any financial printer, solicitation and/or exchange agent and
             outside legal counsel for CSI and each Newco in connection with an
             IPO and a Distribution.

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4. CERTAIN COVENANTS AND OTHER MATTERS

   4.1. Other Agreements.

        4.1.1. Instruments and Agreements. The parties agree to execute or cause
               to be executed by the appropriate parties and deliver, as
               appropriate at the Closing, such other agreements, instruments
               and other documents as may be necessary or desirable in order to
               effect the purposes of this Agreement and the Ancillary
               Agreements, including without limitation as contemplated by this
               Section 4.1 below.

        4.1.2. Retained Third Party Tools. The parties acknowledge that pursuant
               to the terms of the Contribution Agreements, rights with respect
               to certain Third Party Tools (as such term is defined in the
               Contribution Agreements), including without limitation those
               Third Party Tools set forth on Schedule 3.4 to each Contribution
               Agreement, will be retained by CSI and not be contributed to any
               one Newco pursuant to a Contribution Agreement (the "Retained
               Third Party Tool Rights"). CSI acknowledges that certain of the
               Retained Third Party Tool Rights may be necessary or useful for
               the performance of the business of certain Newcos and to such
               extent agrees to hold such Retained Third Party Tool Rights for
               the use and benefit, insofar as reasonably possible and not in
               violation of their terms, of such Newcos (at the expense of such
               Newcos) and shall take such other actions as may be reasonably
               required in order to place such Newcos, insofar as reasonably
               possible and not in violation of such Retained Third Party Tool
               Rights, in the same position as if such Retained Third Party Tool
               Rights had been transferred to such Newcos under the relevant
               Contribution Agreements. The parties acknowledge and agree that
               this Section 4.1.2 is not intended to extend the use of any
               Retained Third Party Tool Rights beyond their current and
               historical use by CSI and its businesses, but rather to enable
               the continued use of such Retained Third Party Tools consistent
               with their current and historical use by CSI and its businesses.

        4.1.3. Intentionally Omitted.

        4.1.4. Shared Services Agreements. At the Closing and at the direction
               of CSI, each of the Newcos will enter into a Shared Services
               Agreement (collectively the "Shared Services Agreements") with
               respect to certain corporate, human resource, information
               technology, accounting, and other services that have been
               provided

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               by CSI to the Newcos or their predecessor divisions of CSI since
               March 1, 2000, and that will continue to be provided by CSI to
               the Newcos on an interim basis, after the Transformation Date.
               Each Shared Services Agreement will provide for service charges
               for such services. Each Shared Services Agreement will also
               permit CSI to engage subcontractors, including the Newcos, to
               perform all or any portion of the services described therein. The
               applicable Newco or Newcos will enter into agreements with CSI
               with respect to the provision of certain of such services by such
               Newco(s). The Shared Services Agreements, subject to certain
               limitations, will also allow CSI and the Newcos to adjust from
               time to time the nature and level of services to be provided
               thereunder.

   4.2. Agreement for Exchange of Information.

        4.2.1. General. CSI shall provide to each Newco, and each Newco shall
               provide to CSI at any time before a Distribution with respect to
               such Newco, any Information in the possession or under the
               control of such party that the requesting party reasonably needs
               (i) to comply with reporting, disclosure, filing or other
               requirements imposed on the requesting party (including under
               applicable securities laws) by a Governmental Authority having
               jurisdiction over the requesting party, (ii) for use in preparing
               its financial statements; (iii) for use in any other judicial,
               regulatory, administrative or other proceeding or in order to
               satisfy audit, accounting, claims, regulatory, litigation or
               other similar requirements, (iv) to comply with its obligations
               under this Agreement or any Ancillary Agreement or (v) in
               connection with its respective ongoing business; provided,
               however, that in the event that any party determines that any
               such provision of Information could be commercially detrimental,
               violate any law or agreement, or waive any attorney-client
               privilege, the parties shall take all reasonable measures to
               permit the compliance with such obligations in a manner that
               avoids any such harm or consequence.

        4.2.2. Continued Cooperation after a Distribution. After a Distribution
               with respect to a Newco (except in the case of a legal or other
               proceeding by one party against another party which shall be
               governed by such discovery rules as may be applicable under
               Section 4.10 or otherwise), CSI and such Newco shall use its
               reasonable commercial efforts to make available to each other
               party, upon written request, the former, current and future
               directors, officers, employees, other personnel and agents of
               such party as witnesses and any books, records or other documents
               within its control or which it otherwise has the ability to make
               available, to the extent that any such person (giving
               consideration

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               to business demands of such directors, officers, employees, other
               personnel and agents) or books, records or other documents may
               reasonably be required in connection with any legal,
               administrative or other proceeding in which the requesting party
               may from time to time be involved, regardless of whether such
               legal, administrative or other proceeding is a matter with
               respect to which indemnification may be sought hereunder. The
               requesting party shall bear all costs and expenses in connection
               therewith except as to those proceedings as to which the
               requesting party is entitled to indemnity from the other party.

        4.2.3. Ownership of Information. Any Information owned by a party that
               is provided to a requesting party pursuant to this Section 4.2
               shall be deemed to remain the property of the providing party.
               Unless specifically set forth herein or in the Ancillary
               Agreements or in an instrument delivered pursuant hereto or
               thereto, nothing contained in this Agreement shall be construed
               as granting or conferring rights of license or otherwise in any
               such Information.

        4.2.4. Record Retention. To facilitate the possible exchange of
               Information pursuant to this Section 4.2 and other provisions of
               this Agreement and the Ancillary Agreements, each party agrees to
               use its reasonable commercial efforts to retain all Information
               in its respective possession or control that might be reasonably
               required by another party.

        4.2.5. Limitation of Liability. No party shall have any liability to any
               other party in the event that any Information exchanged or
               provided pursuant to this Section 4.2 is found to be inaccurate.
               No party shall have any liability to any other party if any
               Information is destroyed or lost.

   4.3. Auditors and Audits. Each Newco agrees that, for so long as CSI is
        required in accordance with United States generally accepted accounting
        principles to consolidate such Newco's results of operations and
        financial position (during such period, such Newco being referred to as
        an "Included Newco"):

        4.3.1. Selection of Auditors. Such Included Newco shall not select a
               different accounting firm from that used by CSI to serve as its
               independent certified public accountants (its "auditors") for
               purposes of providing an opinion on its consolidated financial
               statements without CSI's prior written consent.

        4.3.2. Date of Auditors' Opinion and Quarterly Reviews. The parties will
               cooperate in establishing a timetable for the preparation of

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               audited financial statements and the clearance of quarterly
               financial statements. Each Included Newco shall use its best
               efforts to enable its auditors to complete their audit such that
               they will date their opinion on such Included Newco's audited
               annual financial statements on the same date that CSI's auditors
               date their opinion on CSI's audited annual financial statements,
               and to enable CSI to meet its timetable for the printing, filing
               and public dissemination of CSI's annual financial statements.
               Each Included Newco shall use its best efforts to enable its
               auditors to complete their quarterly review procedures such that
               they will provide clearance on such Included Newco's quarterly
               financial statements on the same date that CSI's auditors provide
               clearance on CSI's quarterly financial statements.

        4.3.3. Annual and Quarterly Financial Statements. Each Included Newco
               shall provide to CSI and the other Included Newcos on a timely
               basis all Information it holds that CSI or another Included
               Newco, as applicable, reasonably requires to meet its schedule
               for the preparation, printing, filing, and public dissemination
               of its annual and quarterly financial statements. CSI shall
               provide to each Included Newco on a timely basis all financial
               Information it holds that such Included Newco reasonably requires
               to meet its schedule for the preparation, printing, filing, and
               public dissemination of its annual and quarterly financial
               statements. CSI and each Included Newco shall instruct its
               auditors and financial personnel to provide such assistance as is
               required to assist in the preparation of CSI's or such Included
               Newco's or another Included Newco's, as the case may be, annual
               and quarterly statements.

        4.3.4. Conflict with Third-Party Agreements. Nothing in Sections 4.2 and
               4.3 shall require any party to violate any agreement with any
               third party regarding the confidentiality of confidential and
               proprietary information relating to that third party or its
               business; provided, however, that in the event that a party is
               required under Sections 4.2 and 4.3 to disclose any such
               Information, it shall use all commercially reasonable efforts,
               but without payment of additional amounts and without other
               concessions, to seek to obtain such third party's consent to the
               disclosure of such information.

   4.4. Confidentiality. Each of the parties and its affiliates shall hold as
        confidential and shall not, except with the express prior written
        consent of the party which owns such confidential information (in the
        case of confidential information existing prior to the Transformation
        Date, the ownership of which shall be determined pursuant to the
        Contribution Agreements and the other Ancillary Agreements) directly or
        indirectly

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        disclose, communicate or divulge to any Person, or use for the benefit
        of any Person, any information or data with respect to the conduct or
        details of the business of any other party hereto held as confidential
        information by such party whether obtained pursuant to Section 4.2
        hereof or otherwise, including, without limitation, methods of
        operation, customers and customer lists, details of contracts with
        customers, consultants, suppliers or employees, products, proposed
        products, former products, proposed, pending or completed acquisitions
        of any company, division, product line or other business unit, prices
        and pricing policies, fees, costs, plans, designs, technology,
        inventions, trade secrets, know-how, software, marketing methods,
        policies, plans, personnel, or other proprietary matters (collectively,
        "Confidential Information"). The restriction contained in the preceding
        sentence shall not apply to any Confidential Information to the extent
        that (i) such information is publicly available, (ii) such information
        is or hereafter becomes lawfully obtainable from other sources without
        breach hereof, (iii) the disclosure is made to a Governmental Authority
        where it is necessary or appropriate to disclose such information to
        such Governmental Authority having jurisdiction over the parties, or
        (iv) disclosure is otherwise required by any legal requirement;
        provided, however that in the cases set forth in clauses (iii) and (iv)
        above, the disclosing party shall provide prior notice to the owner of
        the Confidential Information and take reasonable steps to assist such
        owner in contesting the requirement for the disclosure thereof. The
        parties acknowledge that treatment of confidential information exchanged
        pursuant to the Intercompany Agreements shall be governed by the
        provisions of such agreements and not this Section 4.4.

   4.5. Employee Confidentiality Agreements. Any agreement or instrument
        relating to confidentiality, non-disclosure or non-competition
        obligations of a former employee of CSI and its affiliates who has been,
        or a current employee of CSI who will be, transferred to a Newco in
        connection with the Transformation (a "CSI Confidentiality Agreement")
        shall remain in full force and effect according to its terms; provided,
        however, that none of the following acts committed by former CSI
        employees within the scope of their employment with a particular Newco
        shall constitute a breach of such CSI Confidentiality Agreements: (i)
        the use or disclosure of confidential information of CSI for or on
        behalf of such Newco, if such disclosure is consistent with the rights
        granted to such Newco and restrictions imposed on such Newco under this
        Agreement, any Ancillary Agreement or any other agreement between the
        parties; (ii) the rendering of any services, directly or indirectly, to
        such Newco to the extent such services are consistent with the rights
        granted to such Newco and the restrictions imposed on such Newco under
        this Agreement, any Ancillary Agreement or any other agreement between
        the parties. CSI hereby retains all of its rights under the CSI
        Confidentiality Agreements (except as provided in the immediately
        preceding sentence), but hereby transfers

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        and assigns to each Newco a portion of its rights under the CSI
        Confidentiality Agreements of all former CSI employees employed by such
        Newco to the extent required to permit such Newco to enjoin, restrain,
        recover damages from or obtain specific performance of the CSI
        Confidentiality Agreements or obtain other remedies against any Newco
        employee who breaches his or her CSI Confidentiality Agreement. CSI and
        the relevant Newco may separately enforce the CSI Confidentiality
        Agreements of former CSI employees employed by such Newco, in the case
        of such Newco, to the extent necessary to reasonably protect its
        interests; provided, however, that such Newco shall not commence any
        legal action relating thereto without CSI's written consent. In
        addition, each Newco shall use reasonable commercial efforts to cause
        each of its employees to execute a new confidentiality agreement which
        protects the confidential information of such Newco (each a "Newco
        Confidentiality Agreement"). CSI and each Newco agree to cooperate as
        follows: (A) each Newco shall advise CSI of any violation(s) of the CSI
        Confidentiality Agreements by former CSI employees and cooperate with
        CSI in enforcing the CSI Confidentiality Agreements; (B) CSI shall use
        reasonable commercial efforts to enforce its rights under the CSI
        Confidentiality Agreements and (C) each Newco shall use reasonable
        commercial efforts to enforce its rights under the Newco Confidentiality
        Agreements.

   4.6. CSI Guidelines, etc. Each Newco acknowledges that until a Distribution
        with respect to such Newco, (i) such Newco will be subject to general
        CSI oversight and will follow CSI's corporate guidelines as from time to
        time in effect. Without limiting the foregoing, without prior CSI
        written approval (which written approval may be evidenced by (i) the
        affirmative vote of the chief executive officer of CSI in connection
        with a vote of the Board of Directors of such Newco if he is a member of
        such Board or (ii) if the chief executive officer of CSI is not a member
        of such Board, by the affirmative vote of all officers of CSI sitting on
        such Board in connection with a vote of such Board), no Newco shall:

               (i)   amend (A) its By-laws, (B) its 2000 Option Plan (including
                     any increase in the shares available for issuance under
                     such plan), or (C) any awards issued under its 2000 Option
                     Plan;

               (ii)  issue any equity securities or other securities other than
                     options under its 2000 Option Plan;

               (iii) grant any stock options or other rights to purchase any
                     equity securities or other securities of such Newco in
                     excess of the options reserved under its 2000 Option Plan;

               (iv)  grant any rights to serve on its Board of Directors; or

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               (v)   make any significant changes in its accounting or financial
                     reporting policies.

    4.7. Intercompany Agreements. The parties acknowledge and agree that the
         Newcos, either as separate entities or through their predecessor
         divisions of CSI, have conducted business in accordance with the terms
         and conditions reflected in the Intercompany Agreements from March 1,
         2000 through the date hereof and shall continue to do so through the
         Transformation.

    4.8. Rainbow Awards. In the event of a Distribution by CSI of shares of
         stock of a Newco (the "Distributed Newco"), the Distributed Newco shall
         cause there to be issued, to each "eligible individual" (as hereinafter
         defined) who at the close of the record date for the Distribution holds
         an option to acquire shares of CSI stock that has been granted in
         connection with the performance of services other than an option under
         CSI's stock purchase program or programs (any such eligible individual
         being hereinafter referred to as a "Recipient" and any such option held
         by a Recipient at the close of the record date for the Distribution
         being hereinafter referred to as an "Eligible CSI Option"), an option
         (the "Rainbow Option") to acquire, on the terms hereinafter provided,
         shares of stock of the same class as the stock distributed generally in
         the Distribution ("Newco Stock"). Subject to adjustment as referenced
         below, each Rainbow Option shall be for the number of shares of Newco
         Stock that the Recipient would have been entitled to receive in the
         Distribution with respect to the shares of CSI stock subject to the
         Eligible CSI Option if he or she had owned such shares of CSI stock
         outright on the record date of the Distribution. The per-share exercise
         price for each Rainbow Option shall be fixed in such manner as CSI in
         its sole discretion determines to be appropriate to reflect the
         Distribution. CSI, in connection with the Distribution, shall also
         reduce the per-share exercise price of each Eligible CSI Option to such
         extent, if any, as it deems appropriate to reflect the Distribution. It
         is the intention of the parties that the provisions of this Section 4.8
         shall be administered insofar as is possible to preserve, with respect
         to the Rainbow Option and the Eligible CSI Option immediately after the
         Distribution, the same aggregate spread between fair market value of
         the shares underlying those options and exercise price and the same
         ratio of exercise price to the fair market value of the shares
         underlying those options as existed with respect to the Eligible CSI
         Option immediately before the record date of the Distribution. The
         number of shares subject to the Rainbow Option and CSI options shall be
         subject to adjustment as necessary to accomplish this end, as
         determined by CSI. For purposes of this Section 4.8, the term "eligible
         individual" means, except as CSI may otherwise determine, an individual
         who at the time of the Distribution is an employee of CSI or of an
         entity that is then a subsidiary of CSI. Each

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         Rainbow Option shall be subject to terms substantially similar to those
         which apply to other stock options issued by the Distributed Newco,
         except that the vested status and exercisability of the Rainbow Option,
         and the term and expiration provisions of such option, shall be the
         same as the Eligible CSI Option to which it relates. It is the
         intention of the parties to more fully document the provisions of this
         Section 4.8 on or prior to the Closing, and CSI and each Newco shall
         take such measures as are necessary to carry out the provisions of this
         Section 4.8, including, without limitation, reserving a sufficient
         number of shares and causing the shares to be registered under the
         Securities Act and applicable state securities laws, if any.

    4.9. Expenses. Except as otherwise provided in this Agreement, the Ancillary
         Agreements or any other agreement between the parties relating to the
         Transformation, each Newco shall be responsible, to the extent
         determined reasonable in CSI's sole discretion, for its own fees, costs
         and expenses incurred in connection with the Transformation, any IPO
         and any Distribution and shall bear its proportionate share of such
         fees, costs and expenses incurred by CSI.

   4.10. Dispute Resolution.

         4.10.1. If a dispute, controversy or claim ("Dispute") arises between
                 or among two or more parties relating to the interpretation or
                 performance of this Agreement or the Ancillary Agreements or
                 otherwise relating to the Transformation, other than a dispute
                 under any Intercompany Agreement or supplements thereto or the
                 Tax Sharing Agreement which shall be resolved in the manner set
                 forth in the relevant agreement, the appropriate senior
                 executives of each party who shall have the authority to
                 resolve the matter shall meet within fifteen (15) days from the
                 date the Dispute arises to attempt in good faith to negotiate a
                 resolution of the Dispute prior to pursuing other available
                 remedies. The earlier of fifteen (15) days from the date one
                 party notifies the other party or parties of the Dispute and
                 the date of the initial meeting between the appropriate senior
                 executives shall be referred to herein as the "Dispute
                 Resolution Commencement Date". Discussions and correspondence
                 relating to trying to resolve such Dispute shall be treated as
                 confidential information developed for the purpose of
                 settlement and shall be exempt from discovery or production and
                 shall not be admissible. Subject to Section 4.10.2 below, if
                 the senior executives are unable to resolve the Dispute within
                 fifteen (15) days from the Dispute Resolution Commencement
                 Date, and either party wishes to pursue its rights relating to
                 such Dispute, then, whether or not CSI is involved in the
                 Dispute, the parties shall submit the Dispute to the chief
                 executive officer of CSI (or

                                      -12-
<PAGE>

                 such other executive of CSI designated by the chief executive
                 officer of CSI for this purpose) for resolution. The chief
                 executive officer (or other designated executive of CSI) shall
                 resolve such dispute. The decision of the chief executive
                 officer or other designated executive of CSI shall be final and
                 binding on the parties hereto.

        4.10.2.  Notwithstanding the provisions of Section 4.10.1, if the senior
                 executives of each party are unable to resolve a Dispute within
                 sixty (60) days from the Dispute Resolution Commencement Date
                 and at least one party to the Dispute is a Newco which has
                 consummated an IPO or is no longer a majority-owned Subsidiary
                 of CSI, and any party wishes to pursue its rights relating to
                 such Dispute (as evidenced by the approval of the Board of
                 Directors of such party to pursue arbitration of the Disputee
                 in accordance with this Section 4.10.2), then the Dispute shall
                 be resolved as set forth below:

                 (i) The Dispute shall be submitted to final and binding
                     arbitration under the then current Commercial Arbitration
                     Rules of the American Arbitration Association ("AAA"), by
                     three (3) arbitrators in Boston, Massachusetts. Such
                     arbitrators shall be selected by the mutual agreement of
                     the parties or, failing such agreement, shall be selected
                     according to the aforesaid AAA rules. The arbitrators will
                     be instructed to prepare and deliver a written, reasoned
                     opinion stating their decision within thirty (30) days of
                     the completion of the arbitration. The prevailing party in
                     such arbitration, as determined by the arbitrator, shall be
                     entitled to expenses, including costs and reasonable
                     attorneys' and other professional fees, incurred in
                     connection with the arbitration (but excluding any costs
                     and fees associated with prior negotiation or mediation).
                     The decision of the arbitrator shall be final and non-
                     appealable and may be enforced in any court of competent
                     jurisdiction.

                (ii) Notwithstanding the foregoing Section 4.10.2(i), any
                     Dispute involving at least one Newco which has consummated
                     an IPO or is no longer a majority-owned Subsidiary of CSI
                     regarding the following is not required to be negotiated or
                     arbitrated prior to seeking injunctive relief from a court
                     of competent jurisdiction to prevent serious and
                     irreparable injury to one of the parties or to others:
                     breach of any obligation of confidentiality; infringement,
                     misappropriation, or misuse of any intellectual property
                     right; or any other claim where interim relief from the
                     court is sought to prevent serious and irreparable injury
                     to one of the parties or to others. However, the parties to
                     the Dispute shall make a good

                                      -13-
<PAGE>

                     faith effort to negotiate such Dispute, according to the
                     above procedures, while such court action is pending.

        4.10.3. The processes set forth in this Section 4.10 shall be the
                exclusive processes for the resolution of a Dispute among the
                parties.

        4.10.4. Unless otherwise agreed in writing, the parties will continue to
                honor all other commitments under this Agreement and each
                Ancillary Agreement during the course of dispute resolution
                pursuant to the provisions of this Section 4.10 with respect to
                all matters not subject to such dispute, controversy or claim.

    4.11. Non-Solicitation of Employees. Each party (the "Recruiting Party")
          agrees not to solicit or recruit the employees of any other party for
          a period of (i) two years following the Transformation Date or (ii) if
          both the Recruiting Party and the other party are Newcos, for a period
          of the longer of (x) two years from the Transformation Date and (y)
          until one such party ceases to be a majority owned subsidiary of CSI.
          Notwithstanding the foregoing, this prohibition on solicitation and
          recruitment does not apply to actions taken by a party as a result of
          an employee's affirmative response to a general recruitment effort
          carried out through a public solicitation or general solicitation.

    4.12. Intentionally Omitted.

    4.13. CSI as Stockholder. The parties acknowledge that nothing contained in
          this Agreement or in the Ancillary Agreements or in any agreements
          contemplated hereby or thereby is intended to interfere, or shall
          interfere, with CSI's rights as a stockholder of any Newco.

    4.14. Public Announcements. Each Newco agrees not to issue any press release
          or make any such public statement with respect to this Agreement or
          the transactions contemplated hereby without consulting with, and
          obtaining the prior written approval of, CSI.

    4.15. Further Assurances. Each party agrees to take such further action and
          execute, deliver and/or file such documents or instruments as are
          necessary to carry out the terms and purposes of this Agreement.

    4.16. Conflicting Agreements. In the event of conflict between this
          Agreement and any Ancillary Agreement or other agreement executed in
          connection herewith, the provisions of this Agreement shall prevail.

    4.17. Independent Directors. CSI agrees that, following the closing of any
          IPO of a Newco, for so long as CSI owns a majority of the capital
          stock of such Newco, CSI will use reasonable efforts to cause the
          board of

                                      -14-
<PAGE>

            directors of such Newco to contain a number of directors who
            qualify as an "independent director" as required by the rules and
            regulations of the National Association of Securities Dealers or
            applicable stock exchange regulations.

    4.18.   Retained Product Credits. Each Newco agrees that to the extent any
            holder of Retained Product Credits elects to utilize such Retained
            Product Credits to purchase products and/or services of such Newco,
            such Newco will use reasonable efforts to supply such products
            and/or services, and CSI agrees it will reimburse such Newco for the
            cash value of the products and/or services provided by the Newco in
            respect of Retained Product Credits.

    4.19.   Covenant Not To Sue. Each Newco covenants that it will not assert or
            bring any suit, action, claim or other proceeding against another
            Newco based on, in whole or in part, such other Newco's use, in that
            Newco's Product Segment (as that term is defined in that Newco's
            Contribution Agreement) of those assets contributed to such other
            Newco through the Ancillary Agreements.

    4.20.   Assertion of Patent Rights

        4.20.1. Right to Request Permission to Assert Patent Rights. If a Newco
                is named as a defendant in any action claiming that any of its
                Products or the operation of its Company Business (as those
                terms are defined in that Newco's Contribution Agreement)
                infringes a patent owned by a third party, that Newco may
                request permission from one or more of the other Newcos to
                assert against that third party a claim of infringement of one
                or more of the such other Newcos' patents that are Contributed
                Registered Intellectual Property (as that term is defined in
                that Newco's Contribution Agreement). Any such request shall
                identify the third party and also include that information
                necessary for any such other Newcos to consider whether a basis
                for such a claim exists; the likelihood of success of such a
                claim; and the risks associated with asserting such a claim.

        4.20.2. Assertion of Patent Rights. In response to such a request, the
                Newco owning a patent in its sole discretion may grant or not
                grant permission to the requesting Newco to assert a claim of
                infringement under its patent against the named third party. If
                such permission is granted, the Parties may proceed as follows:

            4.20.2.1. The Newco owning a patent may institute suit jointly with
                      the requesting Newco, the suit being brought in

                                      -15-
<PAGE>

                      both their names, the out-of-pocket costs thereof being
                      borne equally, and any recovery or settlement being shared
                      equally. Those Newcos shall agree to the manner in which
                      they will exercise control over such action, with the
                      Newco owning the patent having ultimate decision authority
                      as to all matters as to which the Newcos cannot agree. The
                      Newco not owning the patent may, if it so desires, also be
                      represented by separate counsel of its own selection, the
                      fees for which counsel shall be paid by such Newco;

            4.20.2.2. The Newco owning the patent may institute suit on its own.
                      Such Newco shall bear the entire cost of such litigation
                      and shall be entitled to retain the entire amount of any
                      recovery or settlement. The other Newco shall have no
                      right or interest in such action or any recovery or
                      settlement achieved through it; or

            4.20.2.3. The Newco owning a patent may allow the requesting Newco
                      to institute the suit, naming the Newco owning the patent
                      as a party. The requesting Newco shall bear the entire
                      cost of such litigation, including expenses incurred by
                      the Newco owning the patent. The requesting Newco may not
                      settle or otherwise compromise any claims under that
                      patent absent the express written permission of the Newco
                      owning the patent. Any recovery in excess of litigation
                      costs will be shared equally by the Newcos. The Newcos
                      agree to negotiate in good faith an appropriate
                      compensation to the Newco owning the patent for any non-
                      cash settlement or non-cash cross-license.

        4.20.3. Abandonment of Actions. Should either Newco commence a suit
                under the provisions of this Section 4.20 and thereafter elect
                to abandon the same, it shall give timely notice to the other
                Newco, who may, if it so desires, continue prosecution of such
                suit, provided, however, that the sharing of expenses and any
                recovery in such suit shall be as agreed upon between Newcos.

    4.21. Transaction With Silver Lake Partners, L.P.

        4.21.1. Description of Transaction. Reference is made to the Amended and
                Restated Securities Purchase Agreement dated as of August 29,
                2000 (the "Securities Purchase Agreement") by and among CSI,
                Silver Lake Partners, L.P. ("Silver Lake") and certain other

                                      -16-
<PAGE>

               assigns of Silver Lake (together with Silver Lake, the
               "Investors").

       4.21.2. General Agreement to Perform Obligations. Each Newco acknowledges
               that the Securities Purchase Agreement sets forth certain actions
               (a) that such Newco will take or that CSI will cause such Newco
               to take and (b) that such Newco will not take or which CSI will
               cause such Newco not to take. Each Newco hereby agrees with CSI
               that it will take or not take, as applicable, all such actions as
               provided in the Securities Purchase Agreement and that it shall
               be bound by the terms of the Securities Purchase Agreement as if
               (i) it were a party thereto and (ii) CSI's obligation to cause
               such Newco to take or not take an action were a direct obligation
               of such Newco to take or not take an action.

       4.21.3. Specific Sections of the Securities Purchase Agreement. Without
               limiting the generality of each Newco's agreement set forth in
               Section 4.21.2, each Newco further acknowledges that its
               obligations under Section 4.21.2 include the following:

         4.21.3.1. Issuance of Securities Generally. Each Newco agrees to (a)
                   take any actions that CSI agrees to cause it to take or that
                   is otherwise provided that it will take and (b) not take any
                   actions that CSI agrees to cause it not to take or that is
                   otherwise provided that it will not take in Section 1.1 of
                   the Securities Purchase Agreement, including without
                   limitation as such section relates to the issuance of
                   securities and rights relating to securities.

       4.21.4. Adjustments to the Subsidiary Stock Purchase Rights.

         4.21.4.1. Working Capital Contributions by CSI to the Newco. Each Newco
                   agrees to (a) take any actions that CSI agrees to cause it to
                   take or that is otherwise provided that it will take and (b)
                   not take any actions that CSI agrees to cause it not to take
                   or that is otherwise provided that it will not take in
                   Section 1.3(b) of the Securities Purchase Agreement,
                   including without limitation as such section relates to
                   Working Capital Contributions by CSI to such Newco.

         4.21.4.2. Distributions by the Newco to CSI. Each Newco agrees to (a)
                   take any actions that CSI agrees to cause it to take or that
                   is otherwise provided that it will take

                                      -17-
<PAGE>

                   and (b) not take any actions that CSI agrees to cause it not
                   to take or that is otherwise provided that it will not take
                   in Section 1.3(c) of the Securities Purchase Agreement,
                   including without limitation as such section relates to
                   distributions made by such Newco to CSI.

         4.21.4.3. Employee Options Issued by the Newco. Each Newco agrees to
                   (a) take any actions that CSI agrees to cause it to take or
                   that is otherwise provided that it will take and (b) not take
                   any actions that CSI agrees to cause it not to take or that
                   is otherwise provided that it will not take in Section 1.4(f)
                   of the Securities Purchase Agreement, including without
                   limitation as such section relates to its issuance of
                   employee stock options.

         4.21.4.4. Other Dilutive Events. Each Newco agrees to (a) take any
                   actions that CSI agrees to cause it to take or that is
                   otherwise provided that it will take and (b) not take any
                   actions that CSI agrees to cause it not to take or that is
                   otherwise provided that it will not take in Section 1.3(d) of
                   the Securities Purchase Agreement, including without
                   limitation as such section relates to dilutive events.

       4.21.5. Issuance of IPO Valuation Warrants. Each Newco agrees to (a) take
               any actions that CSI agrees to cause it to take or that is
               otherwise provided that it will take and (b) not take any actions
               that CSI agrees to cause it not to take or that is otherwise
               provided that it will not take in Section 1.6 of the Securities
               Purchase Agreement, including without limitation as such section
               relates to its issuance of IPO Valuation Warrants.

       4.21.6. Issuance of Subsidiary Warrants. Each Newco agrees to (a) take
               any actions that CSI agrees to cause it to take or that is
               otherwise provided that it will take and (b) not take any actions
               that CSI agrees to cause it not to take or that is otherwise
               provided that it will not take in Section 1.7 of the Securities
               Purchase Agreement, including without limitation as such section
               relates to its issuance of Subsidiary Warrants.

       4.21.7. Participation in Third-Party Investments. Each Newco agrees to
               (a) take any actions that CSI agrees to cause it to take or that
               is otherwise provided that it will take and (b) not take any
               actions

                                     -18-
<PAGE>

               that CSI agrees to cause it not to take or that is otherwise
               provided that it will not take in Sections 1.4(a)-(d) of the
               Securities Purchase Agreement, including without limitation as
               such sections relate to the rights of the Investors to
               participate in Third-Party Investments.

       4.21.8. Compliance with Covenants.

         4.21.8.1. Reservation of Shares. Each Newco agrees to (a) take any
                   actions that CSI agrees to cause it to take or that is
                   otherwise provided that it will take and (b) not take any
                   actions that CSI agrees to cause it not to take or that is
                   otherwise provided that it will not take in Section 5.5 of
                   the Securities Purchase Agreement, including without
                   limitation as such section relates to its promise to reserve
                   sufficient shares to permit the exercise of the Subsidiary
                   Stock Purchase Rights, IPO Warrants and Subsidiary Warrants.

         4.21.8.2. Board of Directors. Each Newco agrees to (a) take any actions
                   that CSI agrees to cause it to take or that is otherwise
                   provided that it will take and (b) not take any actions that
                   CSI agrees to cause it not to take or that is otherwise
                   provided that it will not take in Section 5.7(b) of the
                   Securities Purchase Agreement, including without limitation
                   as such section relates to its board of directors. In
                   particular, Aprisma agrees to allow the Investors to appoint
                   a director to its board of directors as provided for in
                   Section 5.7(b) of the Securities Purchase Agreement.

       4.21.9. Dispute Resolution. Each Newco agrees to comply with the dispute
               resolution mechanism as set forth in Section 1.8 of the
               Securities Purchase Agreement in connection with any disputes
               with the Investors arising under the Securities Purchase
               Agreement.

5.  ALLOCATION OF ASSETS AND LIABILITIES

At the Closing, assets shall be contributed to the Newcos and Liabilities shall
be assumed by the Newcos as provided in the Contribution Agreements; provided,
however, that the parties acknowledge and agree that, notwithstanding any
provisions in the Contribution Agreements to the contrary, CSI may in its sole
discretion retain, allocate or reallocate to any Newcos assets and Liabilities,
including general corporate Liabilities of CSI, or terminate this Agreement or
any Ancillary Agreement to facilitate a tax-free Distribution

                                     -19-
<PAGE>

of any Newco, comply with regulatory or financial reporting requirements or
otherwise facilitate the Transformation in a manner consistent with its business
purposes.

6. INDEMNIFICATION MATTERS

This Section 6 applies to (i) this Agreement and any instruments delivered
pursuant hereto other than (A) the Ancillary Agreements and (B) any supplements
to the Intercompany Agreements and (ii) the Contribution Agreements and any
instruments delivered thereunder (collectively such documents referred to in
clause (i) and (ii) being referred to herein as the "Covered Agreements").

        6.1  Survival of Representations and Warranties. All covenants,
             agreements and indemnities of the parties contained herein or in
             the Covered Agreements shall survive the Transformation Date except
             as otherwise provided herein or therein.

        6.2  Indemnity by CSI.

             6.2.1  CSI hereby agrees to indemnify, defend and hold harmless
                    each Newco and its respective directors, officers and
                    Subsidiaries against and in respect of all Losses that
                    result from:

                    6.2.1.1  any failure of the parties to comply with any bulk
                             transfer law of any jurisdiction in connection with
                             the Transformation; and

                    6.2.1.2  the conduct of CSI's business after the
                             Transformation Date that does not relate to any
                             Newco's business;

             provided, however, that this Section 6.2.1 does not apply to any
             Losses related to income taxes and payroll taxes (which such Losses
             are governed by the Tax Sharing Agreement). Any Newco claiming
             indemnification under this Section 6.2.1 shall provide CSI written
             notice of such claim, whether or not arising out of a claim by a
             third party.

             6.2.2  CSI hereby agrees to indemnify, defend and hold harmless
                    Riverstone and its respective directors, officers and
                    Subsidiaries against and in respect of all losses arising
                    out of or related to any offer of recission made pursuant to
                    California securities law to repurchase any unexercised
                    options issued before the Transformation Date to employees,
                    consultants or advisors of CSI or Riverstone.

        6.3  Indemnity by each Newco. Each Newco hereby agrees to indemnify,
             defend and hold harmless (i) CSI and its directors, officers and
             affiliates (other than the other Newcos and their respective
             Subsidiaries) and (ii)

                                     -20-
<PAGE>

             each other Newco and its directors, officers and Subsidiaries
             against and in respect of all Losses that result from:

             6.3.1  the Assumed Liabilities of such Newco assumed by it pursuant
                    to the relevant Contribution Agreement, any other
                    Liabilities allocated to such Newco pursuant to Section 5
                    hereof, and any Liabilities arising out of the operations of
                    such Newco;

             6.3.2  the nonfulfillment of any agreement or covenant of such
                    Newco contained in any Covered Agreement; and

             6.3.3  the conduct of such Newco's business after the
                    Transformation Date.

             provided, however, that this Section 6.3 does not apply to any
             Losses related to income taxes and payroll taxes (which such Losses
             are governed by the Tax Sharing Agreement). CSI or any Newco
             claiming indemnification under this Section 6.3 shall provide
             written notice to the indemnifying party in respect of such claim,
             whether or not arising out of a claim by a third party.

        6.4  Third Party Claims. Promptly after the receipt by any party
             entitled to indemnification (the "Indemnified Party") pursuant to
             this Section 6 or notice of the commencement of any action against
             such Indemnified Party by a third party, such Indemnified Party
             shall, if a claim with respect thereto is to be made against any
             party obligated to provide indemnification (the "Indemnifying
             Party") pursuant to this Section 6, give such Indemnifying Party
             written notice thereof in reasonable detail in light of the
             circumstances then known to such Indemnified Party. The failure to
             give such notice shall not relieve any Indemnifying Party from any
             obligation hereunder except where, and then solely to the extent
             that, such failure actually and materially prejudices the rights of
             such Indemnifying Party. Such Indemnifying Party shall have the
             right to defend such claim, at such Indemnifying Party's expense
             and with counsel of its choice reasonably satisfactory to the
             Indemnified Party, provided that the Indemnifying Party conducts
             the defense of such claim actively and diligently. If the
             Indemnifying Party assumes the defense of such claim, the
             Indemnified Party agrees to reasonably cooperate in such defense so
             long as the Indemnified Party is not materially prejudiced thereby.
             So long as the Indemnifying Party is conducting the defense of such
             claim actively and diligently, the Indemnified Party may retain
             separate co-counsel at its sole cost and expense and may
             participate in the defense of such claim, and neither any
             Indemnifying Party nor any Indemnified Party will consent to the
             entry of any judgment or enter into any settlement with respect to
             such claim without the prior written consent of the other, which
             consent will not be unreasonably withheld. In the

                                      -21-
<PAGE>

             event the Indemnifying Party does not or ceases to conduct the
             defense of such claim actively and diligently, (w) the Indemnified
             Party may defend against such claim in any manner it may reasonably
             deem to be appropriate, (x) upon receiving the prior written
             consent of the Indemnifying Party, which consent will not be
             unreasonably withheld, the Indemnified Party may consent to the
             entry of any judgment or enter into any settlement with respect to
             such claim, (y) the Indemnifying Party will reimburse the
             Indemnified Party promptly and periodically for the costs of
             defending against such claim, including reasonable attorneys' fees
             and expenses, and (z) the Indemnifying Party will remain
             responsible for any Losses the Indemnitee may suffer as a result of
             such claim to the full extent provided in this Section 6.

7.  CONDITIONS TO THE TRANSFORMATION

The consummation of the Transformation is subject to the satisfaction, at or
prior to the Closing, of all of the following conditions:

        7.1.  Shareholder Approval. The shareholders of CSI shall have approved
              the Transformation.

        7.2.  Execution and Delivery of Documents. Unless otherwise waived in
              writing by the relevant parties benefiting therefrom, each of the
              parties shall have executed and delivered all Ancillary Agreements
              and other documents to be executed and delivered by it on or prior
              to the Transformation Date, including without limitation (i) such
              documents to be executed and delivered on the Effective Date and
              (ii) such documents to be executed and delivered on or prior to
              the Transformation Date pursuant to Section 4.1.

        7.3.  Litigation. No material action shall have been instituted at or
              prior to the Closing by any Governmental Authority or other Person
              relating to this Agreement or any of the transactions contemplated
              hereby, which has a reasonable likelihood of success and the
              result of which would prevent or make illegal the consummation of
              any such transaction.

8.  DEFINITIONS

For the purposes of this Agreement, the following terms shall have the following
meanings:

        8.1.  "AAA" has the meaning assigned to such term in Section 4.10.2.

        8.2.  "A-E Intercompany Agreement" has the meaning assigned to such
              term in Section 1.5.

                                      -22-
<PAGE>

        8.3.  "A-G Intercompany Agreement" has the meaning assigned to such term
              in Section 1.6.

        8.4.  "A-R Intercompany Agreement" has the meaning assigned to such term
              in Section 1.7.

        8.5.  "Agreement" has the meaning assigned to such term in the preamble.

        8.6.  "Ancillary Agreements" has the meaning assigned to such term in
              Section 1.

        8.7.  "Aprisma" has the meaning assigned to such term in the Preamble.

        8.8.  "Aprisma Business" means the "Company Business" as such term is
              defined in the Aprisma Contribution Agreement.

        8.9.  "Aprisma Contribution Agreement" has the meaning assigned to such
              term in Section 1.1.

        8.10. "Assumed Liabilities" means, with respect to a particular Newco,
              "Assumed Liabilities" as such term is defined in the Contribution
              Agreement to which such Newco is party.

        8.11. "CSI" has the meaning assigned to such term in the preamble.

        8.12. "CSI Confidentiality Agreement" has the meaning assigned to such
              term in Section 4.5.

        8.13. "Closing" has the meaning assigned to such term in Section 2.3.

        8.14. "Commission" means the Securities and Exchange Commission.

        8.15. "Confidential Information" has the meaning assigned to such term
              in Section 4.4.

        8.16. "Contribution Agreements" has the meaning assigned to such term in
              Section 1.4.

        8.17. "Covered Agreements" has the meaning assigned to such term in
              Section 6.

        8.18. "Dispute" has the meaning assigned to such term in Section 4.10.1.

        8.19. "Dispute Resolution Commencement Date" has the meaning assigned to
              such term in Section 4.10.1.

                                      -23-
<PAGE>

        8.20. "Distributed Newco" has the meaning assigned to such term in
              Section 4.8.

        8.21. "Distribution" has the meaning assigned to such term in the
              recitals.

        8.22. "Eligible CSI Option" has the meaning assigned to such term in
              Section 4.8.

        8.23. "Enterasys" has the meaning assigned to such term in the preamble.

        8.24. "Enterasys Business" means the "Company Business" as such term is
              defined in the Enterasys Contribution Agreement.

        8.25. "Enterasys Contribution Agreement" has the meaning assigned to
              such term in Section 1.2.

        8.26. "E-G Intercompany Agreement" has the meaning assigned to such term
              in Section 1.8.

        8.27. "E-R Intercompany Agreement" has the meaning assigned to such term
              in Section 1.9.

        8.28. "Exchange Act" means the Securities and Exchange Act of 1934, as
              amended.

        8.29. "GNTS" has the meaning assigned to such term in the preamble.

        8.30. "GNTS Business" means the "Company Business" as such term is
              defined in the GNTS Contribution Agreement.

        8.31. "GNTS Contribution Agreement" has the meaning assigned to such
              term in Section 1.3.

        8.32. "Governmental Authority" means any domestic or foreign federal,
              state or local government, regulatory or administrative agency or
              court.

        8.33. "G-R Intercompany Agreement" has the meaning assigned to such term
              in Section 1.10.

        8.34. "Included Newco" has the meaning assigned to such term in Section
              4.3.

        8.35. "Indemnified Party" has the meaning assigned to such term in
              Section 6.4.1.

        8.36. "Indemnifying Party" has the meaning assigned to such term in
              Section 6.4.1.

                                      -24-
<PAGE>

        8.37. "Information" means information, whether or not patentable or
              copyrightable, in written, oral, electronic or other tangible or
              intangible forms, stored in any medium, including studies,
              reports, records, books, contracts, instruments, surveys,
              discoveries, ideas, concepts, know-how, techniques, designs,
              specifications, drawings, blueprints, diagrams, models,
              prototypes, samples, flow charts, data, computer data, disks,
              diskettes, tapes, computer programs or other software, marketing
              plans, customer names, communications by or to attorneys
              (including attorney-client privileged communications), memos and
              other materials prepared by attorneys or under their direction
              (including attorney work product), and other technical, financial,
              employee or business information or data.

        "Intercompany Agreements" means, collectively, the A-E Intercompany
        Agreement, A-G Intercompany Agreement, A-R Intercompany Agreement, E-G
        Intercompany Agreement, E-R Intercompany Agreement and the G-R
        Intercompany Agreement.

        8.38. "Investors" has the meaning assigned to such term in Section
              4.21.1.

        8.39. "IPO" has the meaning assigned to such term in the recitals.

        8.40. "IPO Valuation Warrants" has the meaning assigned to such term in
              the Securities Purchase Agreement.

        8.41. "Liability" means any debt, liability or obligation whether known
              or unknown, whether asserted or unasserted, whether absolute or
              contingent, whether accrued or unaccrued, whether liquidated or
              unliquidated, whether incurred directly or consequential and
              whether due or to become due, including, without limitation, any
              liability arising out of applicable statutory, regulatory or
              common law, any contractual obligation and any obligation arising
              out of tort.

        8.42. "Losses" means obligations, judgments, liens, injunctions,
              charges, orders, decrees, rulings, damages, dues, assessments,
              losses, fines, penalties, expenses, fees, costs, amounts paid in
              settlement (including reasonable attorneys' and expert witness
              fees and disbursements in connection with the investigation,
              defense or settlement of any action or threatened action), arising
              out of any claim, damages, complaint, demand, cause of action,
              audit, investigation, hearing, action, suit or other proceeding
              asserted or initiated or otherwise existing in respect of any
              matter.

        8.43. "Manufactured Products Agreement" has the meaning assigned to such
              term in Section 1.12.

        8.44. "Newco Confidentiality Agreement" has the meaning assigned to such
              term in Section 4.5.

                                      -25-
<PAGE>

        8.45. "Newco Stock" has the meaning assigned to such term in Section
              4.8.

        8.46. "Newcos" has the meaning assigned to such term in the preamble.

        8.47.  "Person" means an individual, a partnership, a corporation, a
               limited liability company, an association, a joint stock company,
               a trust, a joint venture, an unincorporated organization and a
               governmental entity or any department, agency or political
               subdivision thereof.

        8.48.  "Rainbow Option" has the meaning assigned to such term in Section
               4.8.

        8.49.  "Recipient" has the meaning assigned to such term in Section 4.8.

        8.50.  "Recruiting Party" has the meaning assigned to such term in
               Section 4.11.

        8.51.  "Retained Product Credits" means credits held by third parties
               which obligate CSI to provide product and/or services to the
               holders of such credits in consideration of such credits;
               provided that any such outstanding credits which constitute a
               Liability assumed by any Newco pursuant to a Contribution
               Agreement or otherwise shall not constitute "Retained Product
               Credits".

        8.52.  "Retained Third Party Tool Rights" has the meaning assigned to
               such term in Section 4.1.2.

        8.53.  "Riverstone" has the meaning assigned to such term in the
               preamble.

        8.54.  "Riverstone Business" means the "Company Business" as such term
               is defined in the Riverstone Contribution Agreement.

        8.55.  "Riverstone Contribution Agreement" has the meaning assigned to
               such term in Section 1.4.

        8.56.  "Securities Act" means the Securities Act of 1933, as amended.

        8.57.  "Securities Purchase Agreement" has the meaning assigned to such
               term in Section 4.21.1.

        8.58.  "Shared Services Agreements" has the meaning assigned to such
               term in Section 4.1.4.

        8.59.  "Effective Date" has the meaning assigned to such term in the
               preamble.

        8.60.  "Silver Lake" has the meaning assigned to such term in
               Section 4.21.1.

                                      -26-
<PAGE>

        8.61.  "Subsidiary" of any Person means a corporation or other
               organization whether incorporated or unincorporated of which at
               least a majority of the securities or interests having by the
               terms thereof ordinary voting power to elect at least a majority
               of the board of directors or others performing similar functions
               with respect to such corporation or other organization is
               directly or indirectly owned or controlled by such Person or by
               any one or more of its Subsidiaries, or by such Person and one or
               more of its Subsidiaries; provided, however, that no Person that
               is not directly or indirectly wholly-owned by any other Person
               shall be a Subsidiary of such other Person unless such other
               Person controls, or has the right, power or ability to control,
               that Person.

        8.62.  "Subsidiary Stock Purchase Rights" has the meaning assigned to
               such term in the Securities Purchase Agreement.

        8.63.  "Subsidiary Warrants" has the meaning assigned to such term in
               the Securities Purchase Agreement.

        8.64.  "Tax Sharing Agreement" has the meaning assigned to such term in
               Section 1.11.

        8.65.  "Third Party Claim" has the meaning assigned to such term in
               Section 6.4.1.

        8.66.  "Third-Party Investments" has the meaning assigned to such term
               in the Securities Purchase Agreement.

        8.67.  "Transformation" has the meaning assigned to such term in the
               recitals.

        "Transformation Date" has the meaning assigned to such term in
        Section 2.2.

        8.68.  "Working Capital Contributions" has the meaning assigned to such
               term in the Securities Purchase Agreement.

9.  MISCELLANEOUS

        9.1.  Entire Agreement. This Agreement and the Ancillary Agreements
              including the schedules and exhibits hereto and thereto and the
              other documents and instruments delivered pursuant hereto and
              thereto constitute the entire agreement among the parties hereto
              pertaining to the subject matter hereof and supersede all prior or
              contemporaneous agreements, understandings, negotiations and
              discussions, whether oral or written, of the parties with respect
              to such subject matter.

        9.2.  Amendment or Waiver. Except as provided in Section 9.10 and this
              Section 9.2, the parties hereto may not amend this Agreement
              except by a written instrument executed by the parties hereto. CSI
              and any one

                                      -27-
<PAGE>

              Newco, without the consent of any other Newco, may amend this
              Agreement in a manner which does not adversely affect any other
              Newco pursuant to a written instrument executed by CSI and such
              Newco. Any party may waive its rights hereunder by a written
              instrument executed by such party; provided, however, that unless
              explicitly provided in such instrument, any waiver by any party of
              any default, misrepresentation, or breach of warranty or covenant
              hereunder shall not be deemed to extend to any prior or subsequent
              default, misrepresentation, or breach of warranty or covenant
              hereunder.

        9.3.  Severability. In the event that any provision hereof would, under
              applicable law, be invalid or unenforceable in any respect, such
              provision shall (to the extent permitted under applicable law) be
              construed by modifying or limiting it so as to be valid and
              enforceable to the maximum extent compatible with, and possible
              under, applicable law. The provisions hereof are severable, and in
              the event any provision hereof should be held invalid or
              unenforceable in any respect, it shall not invalidate, render
              unenforceable or otherwise affect any other provision hereof.

        9.4.  Successors and Assigns. All of the terms and provisions of this
              Agreement shall be binding upon and shall inure to the benefit of
              the parties hereto and their respective permitted transferees and
              assigns (each of which transferees and assigns shall be deemed to
              be a party hereto for all purposes hereof); provided, however,
              that (i) no transfer or assignment by any party hereto shall be
              permitted without the prior written consent of the other party
              hereto and any such attempted transfer or assignment without
              consent shall be null and void and (ii) no transfer or assignment
              by any party shall relieve such party of any of its obligations
              hereunder.

        9.5.  Notices. Any notices or other communications required or permitted
              hereunder shall be sufficiently given if in writing and delivered
              personally or sent by telecopier, Federal Express, or registered
              or certified mail, postage prepaid, addressed as follows:

              If to CSI,
                 to it at: Cabletron Systems, Inc.
                           35 Industrial Way
                           Building 36
                           Rochester, NH 03867
                           Attention:  Eric Jaeger and Chief Financial Officer
                           Telecopier No.:  (603) 337-1518

                                      -28-
<PAGE>

          with a copy to:  Ropes & Gray
                           One International Place
                           Boston, MA  02110
                           Attention:  David  A. Fine
                           Telecopier No.: (617) 951-7050

          If to Aprisma,
               to it at:  Aprisma Management Technologies, Inc.
                          121 Technology Drive
                          Durham, NH 03824
                          Attention:  President
                          Telecopier No.:  (603) 337-7784

          with a copy to:  Ropes & Gray
                           One International Place
                           Boston, MA  02110
                           Attention:  David  A. Fine
                           Telecopier No.: (617) 951-7050

          If to Enterasys,
                to it at:  Enterasys Networks, Inc.
                           35 Industrial Way
                           Building 36
                           Rochester, NH 03867
                           Attention:  President
                           Telecopier No.: (603) 337-1524


          with a copy to:  Ropes & Gray
                           One International Place
                           Boston, MA  02110
                           Attention:  David  A. Fine
                           Telecopier No.: (617) 951-7050

          If to GNTS,
              to it at:  GlobalNetwork Technology Services, Inc.
                         1330 Lake Robbins Drive
                         Suite 460
                         Woodlands, TX  77380
                         Attention:  President
                         Telecopier No.:  (281) 681-0442


                                      -29-
<PAGE>

              with a copy to:   Ropes & Gray
                                One International Place
                                Boston, MA  02110
                                Attention:  David  A. Fine
                                Telecopier No.: (617) 951-7050

              If to Riverstone,
                    to it at:   Riverstone Networks, Inc.
                                5200 Great America Parkway
                                Santa Clara, CA
                                Attention:  President
                                Telecopier No.:  (408) 878-6501

              with a copy to:   Ropes & Gray
                                One International Place
                                Boston, MA  02110
                                Attention:  David  A. Fine
                                Telecopier No.: (617) 951-7050

              Unless otherwise specified herein, such notices or other
              communications shall be deemed received (a) on the date delivered,
              if delivered personally, (b) two Business Days after being sent by
              Federal Express, if sent by Federal Express, (c) one Business Day
              after being delivered, if delivered by telecopier and (d) three
              Business Days after being sent, if sent by registered or certified
              mail. Each of the parties hereto shall be entitled to specify a
              different address by giving notice as aforesaid to each of the
              other parties hereto.

        9.6.  Interpretation. Section and subsection headings are not to be
              considered part of this Agreement, are included solely for
              convenience, are not intended to be full or accurate descriptions
              of the content thereof and shall not affect the construction
              hereof. No rule of strict construction shall apply to or be used
              against any party hereto.

        9.7.  Third Party Beneficiaries. Nothing in this Agreement is intended
              or shall be construed to entitle any person or entity other than
              the parties and their respective transferees and assigns permitted
              hereby to any claim, cause of action, remedy or right of any kind.

        9.8.  Counterparts. This Agreement may be executed in any number of
              counterparts, each of which shall be deemed an original, but all
              of which together shall constitute but one and the same
              instrument.

        9.9.  Governing Law. This Agreement shall be governed by and construed
              in accordance with the domestic substantive laws of the State of
              Delaware,

                                      -30-
<PAGE>

              without giving effect to any choice or conflict of law provision
              or rule that would cause the application of the laws of any other
              jurisdiction.

        10.   Termination. This Agreement and any Ancillary Agreements and
              agreements delivered pursuant hereto and thereto may be terminated
              with respect to any one or more or all Newcos and/or the
              Transformation abandoned at any time prior to the Closing by and
              in the sole discretion of CSI without the approval of any Newco.
              In the event of termination pursuant to this Section 10, no party
              shall have any liability of any kind to the other relevant party
              or parties to the extent of such termination.

                                      -31-
<PAGE>

     IN WITNESS WHEREOF, the undersigned have executed this instrument under
seal effective as of the date first written above.


                                    CABLETRON SYSTEMS, INC.

Dated:  November 8, 2000            By:  /s/  Piyush Patel
                                        ----------------------------
                                        Name:   Piyush Patel
                                        Title:  President, Chairman
                                                and CEO


                                    APRISMA MANAGEMENT
                                      TECHNOLOGIES, INC.

Dated:  November __, 2000           By:
                                        ----------------------------
                                        Name:
                                        Title:


                                    ENTRASYS NETWORKS, INC.

Dated:  November __, 2000           By:
                                        ----------------------------
                                        Name:
                                        Title:


                                    GLOBALNETWORK TECHNOLOGY
                                      SERVICES, INC.

Dated:  November __, 2000           By:
                                        ----------------------------
                                        Name:
                                        Title:


                                    RIVERSTONE NETWORKS, INC.

Dated:  November __, 2000           By:
                                        ----------------------------
                                        Name:
                                        Title:


<PAGE>

     IN WITNESS WHEREOF, the undersigned have executed this instrument under
seal effective as of the date first written above.


                                    CABLETRON SYSTEMS, INC.

Dated:  November __, 2000           By:
                                        ----------------------------
                                        Name:
                                        Title:


                                    APRISMA MANAGEMENT
                                      TECHNOLOGIES, INC.

Dated:  November 8, 2000            By:  /s/  Michael Skubisz
                                         ---------------------------
                                        Name:  Michael Skubisz
                                        Title: President


                                    ENTRASYS NETWORKS, INC.

Dated:  November __, 2000           By:
                                        ----------------------------
                                        Name:
                                        Title:


                                    GLOBALNETWORK TECHNOLOGY
                                      SERVICES, INC.

Dated:  November __, 2000           By:
                                        ----------------------------
                                        Name:
                                        Title:


                                    RIVERSTONE NETWORKS, INC.

Dated:  November __, 2000           By:
                                        ----------------------------
                                        Name:
                                        Title:


<PAGE>

     IN WITNESS WHEREOF, the undersigned have executed this instrument under
seal effective as of the date first written above.


                                        CABLETRON SYSTEMS, INC.

Dated:  November __, 2000               By: __________________________
                                            Name:
                                            Title:


                                        APRISMA MANAGEMENT
                                          TECHNOLOGIES, INC.

Dated:  November __, 2000               By: __________________________
                                            Name:
                                            Title:


                                        ENTRASYS NETWORKS, INC.

Dated:  November 8, 2000                By:  /s/  Enrique Fiallo
                                            --------------------------
                                            Name:  Enrique Fiallo
                                            Title: President


                                        GLOBALNETWORK TECHNOLOGY
                                          SERVICES, INC.

Dated:  November __, 2000               By: __________________________
                                            Name:
                                            Title:


                                        RIVERSTONE NETWORKS, INC.

Dated:  November __, 2000               By: __________________________
                                            Name:
                                            Title:

<PAGE>

     IN WITNESS WHEREOF, the undersigned have executed this instrument under
seal effective as of the date first written above.


                                        CABLETRON SYSTEMS, INC.

Dated:  November __, 2000               By: __________________________
                                            Name:
                                            Title:


                                        APRISMA MANAGEMENT
                                          TECHNOLOGIES, INC.

Dated:  November __, 2000               By: __________________________
                                            Name:
                                            Title:


                                        ENTRASYS NETWORKS, INC.

Dated:  November __, 2000               By: __________________________
                                            Name:
                                            Title:


                                        GLOBALNETWORK TECHNOLOGY
                                          SERVICES, INC.

Dated:  November 8, 2000                By: /s/  Earle Humphreys
                                            --------------------------
                                            Name:  Earle Humphreys
                                            Title: President


                                        RIVERSTONE NETWORKS, INC.

Dated:  November __, 2000               By: __________________________
                                            Name:
                                            Title:

<PAGE>

     IN WITNESS WHEREOF, the undersigned have executed this instrument under
seal effective as of the date first written above.


                                    CABLETRON SYSTEMS, INC.

Dated:  November __, 2000               By:
                                             -----------------------
                                             Name:
                                             Title:


                                    APRISMA MANAGEMENT
                                      TECHNOLOGIES, INC.

Dated:  November __, 2000               By:
                                             -----------------------
                                             Name:
                                             Title:


                                    ENTRASYS NETWORKS, INC.

Dated:  November __, 2000               By:
                                             -----------------------
                                             Name:
                                             Title:


                                    GLOBALNETWORK TECHNOLOGY
                                      SERVICES, INC.

Dated:  November __, 2000               By:
                                             -----------------------
                                             Name:
                                             Title:


                                    RIVERSTONE NETWORKS, INC.

Dated:  November 8, 2000                By:   /s/  Romulus Pereira
                                             ----------------------
                                             Name:  Romulus Pereira
                                             Title: President and CEO

<PAGE>

         Exhibits to the Amended and Restated Transformation Agreement
         -------------------------------------------------------------

Exhibit A-1  Amended and Restated Aprisma Contribution Agreement

Exhibit A-2  Amended and Restated Enterasys Contribution Agreement

Exhibit A-3  Amended and Restated GNTS Contribution Agreement

Exhibit A-4  Amended and Restated Riverstone Contribution Agreement

Exhibit B-1  A-E Intercompany Agreement

Exhibit B-2  A-G Intercompany Agreement

Exhibit B-3  A-R Intercompany Agreement

Exhibit B-4  E-G Intercompany Agreement

Exhibit B-5  E-R Intercompany Agreement

Exhibit B-6  G-R Intercompany Agreement

Exhibit C    Tax Sharing Agreement

Exhibit D    Manufactured Products Agreement

Exhibit E    Amended and Restated Securities Purchase Agreement



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