Exhibit 1.1

                               [6,500,000] Shares

                             EXTREME NETWORKS, INC.

                    Common Stock, par value $0.001 per share

                             UNDERWRITING AGREEMENT

                              [October] ___, 1999


                              [October] ___, 1999

Morgan Stanley & Co. Incorporated
BancBoston Robertson Stephens Inc.
Dain Rauscher Wessels,
  a division of Dain Rauscher Incorporated
Hambrecht & Quist LLC
SG Cowen Securities Corporation
Thomas Weisel Partners, LLC
c/o Morgan Stanley & Co. Incorporated
     1585 Broadway
     New York, NY 10036

Morgan Stanley & Co. International Limited
     25 Cabot Square
     Canary Wharf
     London E14 4QA
     England

     Dear Sirs and Mesdames:

     Extreme Networks, Inc., a Delaware corporation (the "Company"), proposes to
issue and sell to the several Underwriters named in Schedule II hereto (the
"U.S. Underwriters"), and certain stockholders of the Company (the "Selling
Stockholders") named in Schedule I hereto severally propose to sell to the
several U.S. Underwriters, an aggregate of [5,200,000] shares of the Company's
common stock, $0.001 par value per share (the "U.S. Firm Shares"), of which
_________ shares are to be issued and sold by the Company and ______ shares are
to be sold by the Selling Stockholders, in connection with the offering and sale
of such U.S. Firm Shares in the United States and Canada to United States and
Canadian Persons (as such terms are defined in the Agreement Between U.S. and
International Underwriters of even date herewith).  In addition, the Company
proposes to issue and sell to the several International Underwriters named in
Schedule II hereto (the "International Underwriters") and the Selling
Stockholders severally propose to sell to the several International
Underwriters, an aggregate of [1,300,000] shares of the Company's common stock,
$0.001 par value per share (the "International Firm Shares"), of which _________
shares are to be issued and sold by the Company and ______ shares are to be sold
by the Selling Stockholders, in connection with the offering and sale of such
International Firm Shares outside the United States and Canada to persons other
than United States and Canadian Persons.  Morgan Stanley & Co. Incorporated;
BancBoston Robertson Stephens Inc.; Dain Rauscher Wessels, a division of Dain
Rauscher Incorporated; Hambrecht & Quist LLC; SG Cowen Securities Corporation
and Thomas Weisel Partners LLC shall act as representatives (the "U.S.
Representatives") of the several U.S. Underwriters, and Morgan Stanley & Co.
International Limited; BancBoston Robertson Stephens International Limited; Dain
Rauscher Wessels, a division of Dain Rauscher Incorporated; Hambrecht & Quist
LLC, Societe Generale and Thomas Weisel


Partners LLC shall act as representatives (the "International Representatives")
of the several International Underwriters. The U.S. Underwriters and the
International Underwriters are hereinafter collectively referred to as the
"Underwriters." The U.S. Firm Shares and the International Firm Shares are
hereinafter collectively referred to as the "Firm Shares."

     The Company also proposes to sell to the several U.S. Underwriters not more
than an additional [975,000] shares of its common stock, $0.001 par value per
share (the "Additional Shares"), if and to the extent that the U.S.
Representatives shall have determined to exercise, on behalf of the U.S.
Underwriters, the right to purchase such shares of common stock granted to the
U.S. Underwriters in Section 3 hereof.  The Firm Shares and the Additional
Shares are hereinafter collectively referred to as the "Shares."  The shares of
the Company's common stock, $0.001 par value per share, to be outstanding after
giving effect to the sales contemplated hereby are hereinafter referred to as
the "Common Stock."  The Company and the Selling Stockholders are hereinafter
sometimes collectively referred to as the "Sellers."

     The Company has filed with the Securities and Exchange Commission (the
"Commission") a registration statement relating to the Shares.  The registration
statement contains two prospectuses to be used in connection with the offering
and sale of the Shares: the U.S. prospectus, to be used in connection with the
offering and sale of Shares in the United States and Canada to United States and
Canadian Persons, and the international prospectus, to be used in connection
with the offering and sale of Shares outside the United States and Canada to
persons other than United States and Canadian Persons.  The international
prospectus is identical to the U.S. prospectus except for the outside front
cover page.  The registration statement as amended at the time it becomes
effective, including the information (if any) deemed to be part of the
registration statement at the time of effectiveness pursuant to Rule 430A under
the Securities Act of 1933, as amended (the "Securities Act"), is hereinafter
referred to as the "Registration Statement;" the U.S. prospectus and the
international prospectus in the respective forms first used to confirm sales of
Shares are hereinafter collectively referred to as the "Prospectus."  If the
Company has filed an abbreviated registration statement to register additional
shares of Common Stock pursuant to Rule 462(b) under the Securities Act (the
"Rule 462 Registration Statement"), then any reference herein to the term
"Registration Statement" shall be deemed to include such Rule 462 Registration
Statement.

     1.   Representations and Warranties.  The Company represents and warrants
to and agrees with each of the Underwriters that:

          (a)  The Registration Statement has become effective; no stop order
suspending the effectiveness of the Registration Statement is in effect, and no
proceedings for such purpose are pending before or, to the best knowledge of the
Company, threatened by the Commission.

          (b)  (i) The Registration Statement, when it became effective, did not
contain and, as amended or supplemented, if applicable, will not contain any
untrue statement of a material fact or omit to state a material fact required to
be stated therein or necessary to make the statements therein not misleading,
(ii) the Registration Statement and the Prospectus comply and, as amended or
supplemented, if applicable, will comply in all material respects with the
Securities Act and the applicable rules and regulations of the Commission
thereunder and (iii) the Prospectus does not

                                      -2-


contain and, as amended or supplemented, if applicable, will not contain any
untrue statement of a material fact or omit to state a material fact necessary
to make the statements therein, in the light of the circumstances under which
they were made, not misleading, except that the representations and warranties
set forth in this paragraph (b) do not apply to statements or omissions in the
Registration Statement or the Prospectus based upon information relating to any
Underwriter furnished to the Company in writing by such Underwriter through you
expressly for use therein.

          (c)  The Company has been duly incorporated, is validly existing as a
corporation in good standing under the laws of the State of Delaware, has the
corporate power and authority to own its property and to conduct its business as
described in the Prospectus and is duly qualified to transact business and is in
good standing in each jurisdiction in which the conduct of its business or its
ownership or leasing of property requires such qualification, except to the
extent that the failure to be so qualified or be in good standing would not have
a material adverse effect on the Company and its subsidiaries, taken as a whole.

          (d)  Each subsidiary of the Company has been duly incorporated, is
validly existing as a corporation in good standing under the laws of the
jurisdiction of its incorporation, has the corporate power and authority to own
its property and to conduct its business as described in the Prospectus and is
duly qualified to transact business and is in good standing in each jurisdiction
in which the conduct of its business or its ownership or leasing of property
requires such qualification, except to the extent that the failure to be so
qualified or be in good standing would not have a material adverse effect on the
Company and its subsidiaries, taken as a whole; all of the issued shares of
capital stock of each subsidiary of the Company have been duly and validly
authorized and issued, are fully paid and non-assessable and are owned directly
by the Company, free and clear of all liens, encumbrances, equities or claims.
No subsidiary of the Company is a "significant subsidiary" as defined in Rule 1-
02 of Regulation S-X under the Securities Act.

          (e)  This Agreement has been duly authorized, executed and delivered
by the Company.

          (f)  The authorized capital stock of the Company conforms as to legal
matters to the description thereof contained in the Prospectus.

          (g)  The shares of Common Stock (including the Shares to be sold by
the Selling Stockholders) outstanding prior to the issuance of the Shares have
been duly authorized and are validly issued, fully paid and non-assessable.

          (h)  The Shares have been duly authorized and, when issued and
delivered in accordance with the terms of this Agreement, will be validly
issued, fully paid and non-assessable, and the issuance of such Shares will not
be subject to any preemptive or similar rights.

          (i)  The execution and delivery by the Company of, and the performance
by the Company of its obligations under, this Agreement will not contravene any
provision of applicable law or the certificate of incorporation or bylaws of the
Company or any agreement or other instrument binding upon the Company or any of
its subsidiaries that is material to the Company and

                                      -3-


its subsidiaries, taken as a whole, or any judgment, order or decree of any
governmental body, agency or court having jurisdiction over the Company or any
subsidiary, and no consent, approval, authorization or order of, or
qualification with, any governmental body or agency is required for the
performance by the Company of its obligations under this Agreement, except such
as may be required by the securities or Blue Sky laws of the various states in
connection with the offer and sale of the Shares by the U.S. Underwriters.

          (j)  There has not occurred any material adverse change, or any
development involving a prospective material adverse change, in the condition,
financial or otherwise, or in the earnings, business or operations of the
Company and its subsidiaries, taken as a whole, from that set forth in the
Prospectus (exclusive of any amendments or supplements thereto subsequent to the
date of this Agreement).

          (k)  There are no legal or governmental proceedings pending or, to the
best knowledge of the Company threatened to which the Company or any of its
subsidiaries is a party or to which any of the properties of the Company or any
of its subsidiaries is subject that are required to be described in the
Registration Statement or the Prospectus and are not so described or any
statutes, regulations, contracts or other documents that are required to be
described in the Registration Statement or the Prospectus or to be filed as
exhibits to the Registration Statement that are not described or filed as
required.

          (l)  Each preliminary prospectus filed as part of the registration
statement as originally filed or as part of any amendment thereto, or filed
pursuant to Rule 424 under the Securities Act, complied when so filed in all
material respects with the Securities Act and the applicable rules and
regulations of the Commission thereunder.

          (m)  Subsequent to the respective dates as of which information is
given in the Registration Statement and the Prospectus, (1) the Company and its
subsidiaries have not incurred any material liability or obligation, direct or
contingent, nor entered into any material transaction not in the ordinary course
of business; (2) the Company has not purchased (except for the repurchase of
shares of Common Stock from employees, officers, directors, consultants or other
persons providing services to the Company or any of its subsidiaries pursuant to
agreements under which the Company has the option to repurchase such shares at
cost upon the occurrence of certain events, such as termination of employment)
any of its outstanding capital stock, nor declared, paid or otherwise made any
dividend or distribution of any kind on its capital stock other than ordinary
and customary dividends; and (3) there has not been any material change in the
capital stock, short-term debt or long-term debt of the Company and its
subsidiaries, except in each case as described in the Prospectus.

          (n)  The Company and its subsidiaries have good and marketable title
in fee simple to all real property and good and marketable title to all personal
property owned by them which is material to the business of the Company and its
subsidiaries, in each case free and clear of all liens, encumbrances and defects
except such as are described in the Prospectus or such as do not materially
affect the value of such property and do not interfere with the use made and
proposed to be made of such property by the Company and its subsidiaries; and
any real property and buildings

                                      -4-


held under lease by the Company and its subsidiaries are held by them under
valid, subsisting and enforceable leases with such exceptions as are not
material and do not interfere with the use made and proposed to be made of such
property and buildings by the Company and its subsidiaries, in each case except
as described in the Prospectus.

          (o)  The Company and its subsidiaries own or possess, or can acquire
on reasonable terms, all trademarks, service marks, trade names, copyrights,
license rights, know-how (including trade secrets and other unpatented and/or
unpatentable proprietary or confidential information, system or procedure) and
other similar intellectual property rights, and to the best of the Company's
knowledge, all patents and patent rights necessary to carry on their business in
all material respects as described in the Prospectus and currently employed by
them in connection with the business now operated by them, and, except as
described in the Prospectus, neither the Company nor any of its subsidiaries has
received any notice of infringement of or conflict with asserted rights of
others with respect to any of the foregoing which, singly or in the aggregate,
if the subject of an unfavorable decision, ruling or finding, would have a
material adverse effect on the Company and its subsidiaries, taken as a whole.

          (p)  No material labor dispute with the employees of the Company or
any of its subsidiaries exists, except as described in the Prospectus, or, to
the knowledge of the Company, is imminent; and the Company is not aware of any
existing, threatened or imminent labor disturbance by the employees of any of
its principal suppliers, manufacturers or contractors that could have a material
adverse effect on the Company and its subsidiaries, taken as a whole.

          (q)  The Company and its subsidiaries are insured by insurers of
recognized financial responsibility against such losses and risks and in such
amounts as are prudent and customary in the businesses in which they are
engaged; neither the Company nor any of its subsidiaries has been refused any
insurance coverage sought or applied for; and neither the Company nor any of its
subsidiaries has any reason to believe that it will not be able to renew its
existing insurance coverage as and when such coverage expires or to obtain
similar coverage from similar insurers as may be necessary to continue its
business at a cost that would not have a material adverse effect on the Company
and its subsidiaries, taken as a whole, except as described in the Prospectus.

          (r)  The Company and its subsidiaries have complied and are in
material compliance with all federal, state, local and foreign statutes,
executive orders, proclamations, regulations, rules, directives, decrees,
ordinances and similar provisions having the force or effect of law and all
judicial and administrative orders, rulings, determinations and common law
concerning the importation of merchandise, the export or reexport of products,
services and technology, and the terms and conduct of international transactions
applicable to the Company and its subsidiaries in connection with the conduct of
the Company's or any subsidiary's business (including as the same relates to
record keeping requirements) ("International Trade Laws and Regulations");
neither the Company nor any of its subsidiaries has made or provided any
material false statement or material omission to any agency of any federal,
state or local government, purchasers of products, or foreign government or
foreign agency, in connection with the exportation of merchandise (including
with respect to export licenses, exceptions and other export authorizations and
any filings required for or

                                      -5-


related to exportation of any item), the importation of merchandise or other
approvals required by a foreign government or agency or any other requirement
relating to any International Trade Laws and Regulations; neither the Company
nor any of its subsidiaries has made any payment, offer, gift, promise to give,
or authorized or otherwise participated in, assisted or facilitated any payment
or gift related to the Company's or any subsidiary's business that is prohibited
by the United States Foreign Corrupt Practices Act.

          (s)  The Company and its subsidiaries possess all certificates,
authorizations and permits issued by the appropriate federal, state or foreign
regulatory authorities necessary to conduct their respective business, and
neither the Company nor any of its subsidiaries has received any notice of
proceedings relating to the revocation or modification of any such certificate,
authorization or permit which, singly or in the aggregate, if the subject of an
unfavorable decision, ruling or finding, would have a material adverse effect on
the Company and its subsidiaries, taken as a whole, except as described the
Prospectus.

          (t)  The Company and each of its subsidiaries maintain a system of
internal accounting controls sufficient to provide reasonable assurance that (1)
transactions are executed in accordance with management's general or specific
authorizations; (2) transactions are recorded as necessary to permit preparation
of financial statements in conformity with generally accepted accounting
principles and to maintain asset accountability; (3) access to assets is
permitted only in accordance with management's general or specific
authorization; and (4) the recorded accountability for assets is compared with
the existing assets at reasonable intervals and appropriate action is taken with
respect to any differences.

          (u)  Ernst & Young LLP are independent public accountants with respect
to the Company and its subsidiaries as required by the Securities Act.

          (v)  The consolidated financial statements included in the
Registration Statement and the Prospectus (and any amendment or supplement
thereto), together with related schedules and notes, present fairly the
consolidated financial position, results of operations and changes in financial
position of the Company and its subsidiaries on the basis stated therein at the
respective dates or for the respective periods to which they apply; such
statements and related schedules and notes have been prepared in accordance with
generally accepted accounting principles consistently applied throughout the
periods involved, except as disclosed therein; the supporting schedules, if any,
included in the Registration Statement present fairly in accordance with
generally accepted accounting principles the information required to be stated
therein; and the other financial and statistical information and data set forth
in the Registration Statement and the Prospectus (and any amendment or
supplement thereto) are, in all material respects, accurately presented and
prepared on a basis consistent with such financial statements and the books and
records of the Company.

          (w)  The Company is not and, after giving effect to the offering and
sale of the Shares and the application of the proceeds thereof as described in
the Prospectus, will not be an "investment company" as such term is defined in
the Investment Company Act of 1940, as amended.

                                      -6-


          (x)  The Company and its subsidiaries (i) are in compliance with any
and all applicable foreign, federal, state and local laws and regulations
relating to the protection of human health and safety, the environment or
hazardous or toxic substances or wastes, pollutants or contaminants
("Environmental Laws"), (ii) have received all permits, licenses or other
approvals required of them under applicable Environmental Laws to conduct their
respective businesses and (iii) are in compliance with all terms and conditions
of any such permit, license or approval, except where such noncompliance with
Environmental Laws, failure to receive required permits, licenses or other
approvals or failure to comply with the terms and conditions of such permits,
licenses or approvals would not, singly or in the aggregate, have a material
adverse effect on the Company and its subsidiaries, taken as a whole.

          (y)  To the best knowledge of the Company, there are no costs or
liabilities associated with Environmental Laws (including, without limitation,
any capital or operating expenditures required for clean-up, closure of
properties or compliance with Environmental Laws or any permit, license or
approval, any related constraints on operating activities and any potential
liabilities to third parties) which would, singly or in the aggregate, have a
material adverse effect on the Company and its subsidiaries, taken as a whole.

          (z)  There are no contracts, agreements or understandings between the
Company and any person granting such person the right to require the Company to
file a registration statement under the Securities Act with respect to any
securities of the Company or to require the Company to include such securities
with the Shares registered pursuant to the Registration Statement, except such
as have been validly waived.

          (aa) The Company has reviewed its operations and the operations of its
subsidiaries to evaluate the extent to which the business or operations of the
Company or any of its subsidiaries will be affected by the Year 2000 Problem. As
a result of such review, the Company has no reason to believe, and does not
believe, that the Year 2000 Problem will have a material adverse effect on the
Company and its subsidiaries taken as a whole. The "Year 2000 Problem" as used
herein means any significant risk that the computer hardware or software used in
the receipt, transmission, storage, retrieval, retransmission or other
utilization of data or in the operation of mechanical or electrical systems of
any kind will not, in the case of dates or time periods occurring after December
31, 1999, function at least as effectively as in the case of dates or time
periods occurring prior to January 1, 2000.

          (bb) The Company has complied with all provisions of Section 517.075,
Florida Statutes relating to doing business with the Government of Cuba or with
any person or affiliate located in Cuba.

          (cc) The Nasdaq Stock Market, Inc. has approved the Common Stock for
listing on the Nasdaq National Market, subject only to official notice of
issuance.

          (dd) [Except for the Shares [and approximately [27,822,000] shares of
Common Stock currently outstanding], all outstanding shares of Common Stock, and
all securities convertible into or exercisable or exchangeable for Common Stock,
are subject to valid and binding agreements

                                      -7-


(collectively, the "Lock-up Agreements") that restrict the holders thereof from
selling, making any short sale of, granting any option for the purchase of, or
otherwise transferring or disposing of, any of such shares of Common Stock, or
any such securities convertible into or exercisable or exchangeable for Common
Stock, for a period of 90 days after the date of the Prospectus without the
prior written consent of Morgan Stanley & Co. Incorporated or the Company.]

          (ee) There are no contracts, agreements or understandings between the
Company and any person granting such person the right to require the Company to
file a registration statement under the Securities Act with respect to any
securities of the Company or to require the Company to include such securities
with the Shares registered pursuant to the Registration Statement other than as
described in the Registration Statement and as have been waived in writing in
connection with the offering contemplated hereby.

     2.   Representations and Warranties of the Selling Stockholders.

          (a)  Each of the Selling Stockholders represents and warrants to and
agrees with each of the Underwriters that:

               (i)  This Agreement has been duly authorized, executed and
delivered by or on behalf of such Selling Stockholder.

               (ii) The execution and delivery by such Selling Stockholder of,
and the performance by such Selling Stockholder of its obligations under, this
Agreement, the Custody Agreement signed by such Selling Stockholder and
ChaseMellon Shareholder Services, L.L.C., as Custodian, relating to the deposit
of the Shares to be sold by such Selling Stockholder (the "Custody Agreement")
and the Power of Attorney appointing certain individuals as such Selling
Stockholder's attorneys-in-fact to the extent set forth therein, relating to the
transactions contemplated hereby and by the Registration Statement (the "Power
of Attorney") will not contravene any provision of applicable law, or the
certificate of incorporation or by-laws of such Selling Stockholder (if such
Selling Stockholder is a corporation), or any agreement or other instrument
binding upon such Selling Stockholder or any judgment, order or decree of any
governmental body, agency or court having jurisdiction over such Selling
Stockholder, and no consent, approval, authorization or order of, or
qualification with, any governmental body or agency is required for the
performance by such Selling Stockholder of its obligations under this Agreement
or the Custody Agreement or Power of Attorney of such Selling Stockholder,
except such as may be required by the securities or Blue Sky laws of the various
states in connection with the offer and sale of the Shares by the U.S.
Underwriters.

               (iii)  Such Selling Stockholder has, and on the Closing Date will
have, valid title to the Shares to be sold by such Selling Stockholder and the
legal right and power, and all authorization and approval required by law, to
enter into this Agreement, the Custody Agreement and the Power of Attorney and
to sell, transfer and deliver the Shares to be sold by such Selling Stockholder.

                                      -8-


               (iv) The Custody Agreement and the Power of Attorney have been
duly authorized, executed and delivered by such Selling Stockholder and are
valid and binding agreements of such Selling Stockholder.

               (v)  Delivery of the Shares to be sold

               (vi) Such Selling Stockholder has no knowledge of any material
fact, condition or information not disclosed in the Registration Statement which
has adversely affected or may adversely affect the business of the Company and
its subsidiaries, taken as a whole; and the sale of the Shares by such Selling
Stockholder pursuant hereto is not prompted by any material information
concerning the Company or any of its subsidiaries which is not set forth in the
Registration Statement or the documents incorporated by reference therein.

          (b)  In addition to the representations and warranties set forth in
Section 2(a) above, Gordon L. Stitt represents, warrants and agrees with each of
the Underwriters that (i) the Registration Statement, when it became effective,
did not contain and, as amended or supplemented, if applicable, will not contain
any untrue statement of a material fact or omit to state a material fact
required to be stated therein or necessary to make the statements therein not
misleading, (ii) the Registration Statement and the Prospectus comply and, as
amended or supplemented, if applicable, will comply in all material respects
with the Securities Act and the applicable rules and regulations of the
Commission thereunder and (iii) the Prospectus does not contain and, as amended
or supplemented, if applicable, will not contain any untrue statement of a
material fact or omit to state a material fact necessary to make the statements
therein, in the light of the circumstances under which they were made, not
misleading, except that the representations and warranties set forth in this
paragraph 2(b) do not apply to statements or omissions in the Registration
Statement or the Prospectus based upon information relating to any Underwriter
furnished to the Company in writing by such Underwriter through you expressly
for use therein.

     3.  Agreements to Sell and Purchase.  Each Seller, severally and not
jointly, hereby agrees to sell to the several Underwriters, and each
Underwriter, upon the basis of the representations and warranties herein
contained, but subject to the conditions hereinafter stated, agrees, severally
and not jointly, to purchase from such Seller at U.S. $_____ a share (the
"Purchase Price") the number of Firm Shares (subject to such adjustments to
eliminate fractional shares as you may determine) that bears the same proportion
to the number of Firm Shares to be sold by such Seller as the number of Firm
Shares set forth in Schedules II and III hereto opposite the name of such
Underwriter bears to the total number of Firm Shares.

     On the basis of the representations and warranties contained in this
Agreement, and subject to its terms and conditions, each Selling Stockholder,
severally and not jointly, hereby agrees to sell to the several U.S.
Underwriters the Additional Shares, and the U.S. Underwriters shall have a one-
time right to purchase, severally and not jointly, the Additional Shares at the
Purchase Price.  If the U.S. Representatives, on behalf of the U.S.
Underwriters, elect to exercise such option, the U.S. Representatives shall so
notify each Selling Stockholder in writing not later than 30 days after the

                                      -9-


date of this Agreement, which notice shall specify the number of Additional
Shares to be purchased from such Selling Stockholder by the U.S. Underwriters
and the date on which such Additional Shares are to be purchased. Such date may
be the same as the Closing Date (as defined below) but not earlier than the
Closing Date nor later than ten business days after the date of such notice.
Additional Shares may be purchased as provided in Section 5 hereof solely for
the purpose of covering over-allotments made in connection with the offering of
the Firm Shares. If any Additional Shares are to be purchased, each U.S.
Underwriter agrees, severally and not jointly, to purchase the number of
Additional Shares (subject to such adjustments to eliminate fractional shares as
the U.S. Representatives may determine) that bears the same proportion to the
total number of Additional Shares to be purchased as the number of U.S. Firm
Shares set forth in Schedule II hereto opposite the name of such U.S.
Underwriter bears to the total number of U.S. Firm Shares.

     Each Seller hereby agrees that, without the prior written consent of Morgan
Stanley on behalf of the Underwriters, it will not, during the period ending 90
days after the date of the Prospectus, (i) offer, pledge, sell, contract to
sell, sell any option or contract to purchase, purchase any option or contract
to sell, grant any option, right or warrant to purchase, lend, or otherwise
transfer or dispose of, directly or indirectly, any shares of Common Stock or
any securities convertible into or exercisable or exchangeable for Common Stock
or (ii) enter into any swap or other arrangement that transfers to another, in
whole or in part, any of the economic consequences of ownership of the Common
Stock, whether any such transaction described in clause (i) or (ii) above is to
be settled by delivery of Common Stock or such other securities, in cash or
otherwise.  The foregoing sentence shall not apply to (A) the Shares to be sold
hereunder, (B) the issuance by the Company of shares of Common Stock upon the
exercise of an option or warrant or the conversion of a security outstanding on
the date hereof as described in the Registration Statement or of which the
Underwriters have been advised in writing, (C) the grant of options to purchase
Common Stock pursuant to the Option Plan, (D) the issuance by the Company of
shares of Common Stock pursuant to the Company's 1999 Employee Stock Purchase
Plan and (E) Shares not otherwise subject to lock-up agreements with other
Representatives or Morgan Stanley.  In addition, each Selling Stockholder,
agrees that, without the prior written consent of Morgan Stanley & Co.
Incorporated on behalf of the Underwriters, it will not, during the period
ending 90 days after the date of the Prospectus, make any demand for, or
exercise any right with respect to, the registration of any shares of Common
Stock or any security convertible into or exercisable or exchangeable for Common
Stock.

     4.  Terms of Public Offering.  The Sellers are advised by you that the
Underwriters propose to make a public offering of their respective portions of
the Shares as soon after the Registration Statement and this Agreement have
become effective as in your judgment is advisable.  The Sellers are further
advised by you that the Shares are to be offered to the public initially at U.S.
$____ a share (the "Public Offering Price") and to certain dealers selected by
you at a price that represents a concession not in excess of U.S. $____ a share
under the Public Offering Price, and that any Underwriter may allow, and such
dealers may reallow, a concession, not in excess of U.S. $____ a share, to any
Underwriter or to certain other dealers.

     5.  Payment and Delivery.  Payment for the Firm Shares to be sold by each
Seller shall be made to such Seller in Federal or other funds immediately
available in New York City against

                                      -10-


delivery of such Firm Shares for the respective accounts of the several
Underwriters at 10:00 a.m., New York City time, on [ ] ___, 1999, or at such
other time on the same or such other date, not later than [ ] ___, 1999, as
shall be designated in writing by you. The time and date of such payment are
hereinafter referred to as the "Closing Date."

     Payment for any Additional Shares to be sold by a Selling Stockholder shall
be made to such Selling Stockholder in Federal or other funds immediately
available in New York City against delivery of such Additional Shares for the
respective accounts of the several Underwriters at 10:00 a.m., New York City
time, on the date specified in the notice described in Section 3 or at such
other time on the same or such other date, in any event not later than ________
____, 1999, as shall be designated in writing by you.  The time and date of such
payment are hereinafter referred to as the "Option Closing Date."

     Certificates for the Firm Shares and Additional Shares shall be in
definitive form and registered in such names and in such denominations as you
shall request in writing not later than two full business days prior to the
Closing Date or the Option Closing Date, as the case may be.  The certificates
evidencing the Firm Shares and Additional Shares shall be delivered to you on
the Closing Date or the Option Closing Date, as the case may be, for the
respective accounts of the several Underwriters, with any transfer taxes payable
in connection with the transfer of the Shares to the Underwriters duly paid,
against payment of the Purchase Price therefor.

     6.  Conditions to the Underwriters' Obligations.  The obligations of the
Sellers to sell the Shares to the Underwriters and the several obligations of
the Underwriters to purchase and pay for the Shares on the Closing Date are
subject to the condition that the Registration Statement shall have become
effective not later than [ ] p.m. (New York City time) on the date hereof.

     The several obligations of the Underwriters are subject to the following
further conditions:

          (a)  Subsequent to the execution and delivery of this Agreement and
prior to the Closing Date:

               (i)  there shall not have occurred any downgrading, nor shall any
notice have been given of any intended or potential downgrading or of any review
for a possible change that does not indicate the direction of the possible
change, in the rating accorded any of the Company's securities by any
"nationally recognized statistical rating organization," as such term is defined
for purposes of Rule 436(g)(2) under the Securities Act; and

               (ii) there shall not have occurred any change, or any development
involving a prospective change, in the condition, financial or otherwise, or in
the earnings, business or operations of the Company and its subsidiaries, taken
as a whole, from that set forth in the Prospectus (exclusive of any amendments
or supplements thereto subsequent to the date of this Agreement) that, in your
judgment, is material and adverse and that makes it, in your judgment,
impracticable to market the Shares on the terms and in the manner contemplated
in the Prospectus.

                                      -11-


          (b)  The Underwriters shall have received on the Closing Date a
certificate, dated the Closing Date and signed by an executive officer of the
Company, to the effect set forth in Section 5(a)(i) above and to the effect that
the representations and warranties of the Company contained in this Agreement
are true and correct as of the Closing Date and that the Company has complied in
all material respects with all of the agreements and satisfied all of the
conditions on its part to be performed or satisfied hereunder on or before the
Closing Date.

     The officer signing and delivering such certificate may rely upon the best
of his or her knowledge as to proceedings threatened.

          (c)  The Underwriters shall have received on the Closing Date an
opinion of Gray Cary Ware & Freidenrich LLP, outside counsel to the Company,
dated the Closing Date, to the effect that:

               (i)  the Company has been duly incorporated, is validly existing
as a corporation in good standing under the laws of the State of Delaware, has
the corporate power and authority to own its property and to conduct its
business as described in the Prospectus and is duly qualified to transact
business and is in good standing in each jurisdiction in which the conduct of
its business or its ownership or leasing of property requires such
qualification, except to the extent that the failure to be so qualified or be in
good standing would not have a material adverse effect on the Company and its
subsidiaries, taken as a whole;

               (ii) the authorized capital stock of the Company conforms as to
legal matters to the description thereof contained in the Prospectus;

               (iii)  the shares of Common Stock outstanding prior to the
issuance of the Shares have been duly authorized and are validly issued, fully
paid and non-assessable;

               (iv) the Shares have been duly authorized and, when issued and
delivered in accordance with the terms of this Agreement, will be validly
issued, fully paid and non-assessable, and the issuance of such Shares will not
be subject to any preemptive or similar rights;

               (v)  this Agreement has been duly authorized, executed and
delivered by the Company;

               (vi) the execution and delivery by the Company of, and the
performance by the Company of its obligations under, this Agreement will not
contravene any provision of applicable law or the certificate of incorporation
or bylaws of the Company or, to such counsel's knowledge, any agreement or other
instrument binding upon the Company or any of its subsidiaries that is material
to the Company and its subsidiaries, taken as a whole, or, to such counsel's
knowledge, any judgment, order or decree of any governmental body, agency or
court having jurisdiction over the Company or any subsidiary, and no consent,
approval, authorization or order of, or qualification with, any governmental
body or agency is required for the performance by the Company of its obligations
under this Agreement, except such as may be required by the

                                      -12-


securities or Blue Sky laws of the various states in connection with the offer
and sale of the Shares by the U.S. Underwriters;

               (vii)  the statements (A) in the Prospectus under the captions
"Risk Factors--Provisions in Extreme's Charter or Agreements May Delay or
Prevent a Change of Control," "Risk Factors--Substantial Future Sales of
Extreme's Common Stock in the Public Market Could Cause Its Stock Price to
Fall," "Management--Change of Control Arrangements," "Management--Amended 1996
Stock Option Plan," "Management--1999 Employee Stock Purchase Plan,"
"Management--Limitation of Liability and Indemnification," "Certain
Transactions," "Description of Capital Stock," "Shares Eligible for Future Sale"
and "Underwriters" and (B) in the Registration Statement in Items 14 and 15, in
each case insofar as such statements constitute summaries of the legal matters,
documents or proceedings referred to therein, fairly present the information
called for with respect to such legal matters, documents and proceedings and
fairly summarize the matters referred to therein;

               (viii)  after due inquiry, such counsel does not know of any
legal or governmental proceedings pending or, to such counsel's knowledge,
threatened to which the Company or any of its subsidiaries is a party or to
which any of the properties of the Company or any of its subsidiaries is subject
that are required to be described in the Registration Statement or the
Prospectus and are not so described or of any statutes, regulations, contracts
or other documents that are required to be described in the Registration
Statement or the Prospectus or to be filed as exhibits to the Registration
Statement that are not described or filed as required;

               (ix)   the Company is not and, after giving effect to the
offering and sale of the Shares and the application of the proceeds thereof as
described in the Prospectus, will not be an "investment company" as such term is
defined in the Investment Company Act of 1940, as amended;

               (x)  such counsel (A) is of the opinion that the Registration
Statement and Prospectus (except for financial statements and schedules included
therein and financial and statistical data included therein and derived
therefrom, as to which such counsel need not express any opinion) comply as to
form in all material respects with the Securities Act and the applicable rules
and regulations of the Commission thereunder, (B) has no reason to believe that
(except for financial statements and schedules included therein and financial
and statistical data included therein and derived therefrom, as to which such
counsel need not express any belief) the Registration Statement and the
prospectus included therein at the time the Registration Statement became
effective contained any untrue statement of a material fact or omitted to state
a material fact required to be stated therein or necessary to make the
statements therein not misleading and (C) has no reason to believe that (except
for financial statements and schedules included therein and financial and
statistical data included therein and derived therefrom, as to which such
counsel need not express any belief) the Prospectus contains any untrue
statement of a material fact or omits to state a material fact necessary in
order to make the statements therein, in the light of the circumstances under
which they were made, not misleading.

                                      -13-


          (d)  The Underwriters shall have received on the Closing Date an
opinion of Blakely, Sokoloff, Taylor and Zafman LLP, intellectual property
counsel to the Company, dated the Closing Date, with respect to certain
intellectual property matters, to the effect that:

               (i)  The Company owns all patents, trademarks, trademark
registrations, service marks, service mark registrations, trade names,
copyrights, licenses, inventions, trade secrets and rights described in the
Prospectus as being owned by it, and such counsel is not aware of any claim to
the contrary or any challenge by any other person to the rights of the Company
with respect to the foregoing other than those identified in the Prospectus;

               (ii) Such counsel is not aware of any legal actions, claims or
proceedings pending or threatened against the Company its manufacturers,
suppliers or customers other than those identified in the Prospectus alleging
that the Company is infringing or otherwise violating any patents, trademarks,
trademark registrations, service marks, service mark registrations, trade names,
copyrights, licenses, inventions or trade secrets owned by others;

               (iii)  Such counsel has reviewed the descriptions of patents and
patent applications under the captions "Risk Factors--We May Not Adequately
Protect Our Intellectual Property and Our Products May Infringe on the
Intellectual Property Rights of Third Parties" and "Business--Intellectual
Property" in the Registration Statement and Prospectus, and, to the extent they
constitute matters of law or legal conclusions, these descriptions are accurate
and fairly and completely present the patent situation of the Company;

               (iv) For each copyrightable product described in the Prospectus,
the Company either (i) has registered all copyrights for such product and has
obtained and properly recorded written assignments of all rights and title
therein to the Company from all authors and owners of such copyrights other than
the Company, including without limitation any and all independent contractors;
or (ii) was vested with original title to all copyrights for such product and no
written assignments for such copyrights are required to perfect Company's rights
and title thereto; and

               (v)  With respect to the patent protection on the Company's
technology for each patent or patent application described in the Prospectus as
being owned by the Company, such counsel is aware of nothing that causes such
counsel to believe that, as of the date of the Registration Statement became
effective and as of the date of such opinion, the description of patents and
patent applications under the captions "Risk Factors--We May Not Adequately
Protect Our Intellectual Property and Our Products May Infringe on the
Intellectual Property Rights of Third Parties" and "Business--Intellectual
Property" in the Registration Statement and Prospectus contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements made therein, in light of the circumstances under which they were
made, not misleading, including without limitation, any undisclosed material
issue with respect to the subsequent validity or enforceability of such patent
or patent issuing from any such pending patent application.

                                      -14-


          (e)  The Underwriters shall have received on the Closing Date an
opinion of [Gray Cary Ware & Freidenrich LLP], counsel for the Selling
Stockholders, dated the Closing Date, to the effect that:

               (i)  this Agreement has been duly authorized, executed and
delivered by or on behalf of each of the Selling Stockholders;

               (ii) the execution and delivery by each Selling Stockholder of,
and the performance by such Selling Stockholder of its obligations under, this
Agreement and the Custody Agreement and Powers of Attorney of such Selling
Stockholder will not contravene any provision of applicable law, or the
certificate of incorporation or by-laws of such Selling Stockholder (if such
Selling Stockholder is a corporation), or, to the best of such counsel's
knowledge, any agreement or other instrument binding upon such Selling
Stockholder or, to the best of such counsel's knowledge, any judgment, order or
decree of any governmental body, agency or court having jurisdiction over such
Selling Stockholder, and no consent, approval, authorization or order of, or
qualification with, any governmental body or agency is required for the
performance by such Selling Stockholder of its obligations under this Agreement
or the Custody Agreement or Power of Attorney of such Selling Stockholder,
except such as may be required by the securities or Blue Sky laws of the various
states in connection with offer and sale of the Shares by the U.S. Underwriters;

               (iii) each of the Selling Stockholders has valid title to the
Shares to be sold by such Selling Stockholder and the legal right and power, and
all authorization and approval required by law, to enter into this Agreement and
the Custody Agreement and Power of Attorney of such Selling Stockholder and to
sell, transfer and deliver the Shares to be sold by such Selling Stockholder;

               (iv) the Custody Agreement and the Power of Attorney of each
Selling Stockholder have been duly authorized, executed and delivered by such
Selling Stockholder and are valid and binding agreements of such Selling
Stockholder;

               (v)  delivery of the Shares to be sold by each Selling
Stockholder pursuant to this Agreement will pass title to such Shares free and
clear of any security interests, claims, liens, equities and other encumbrances;
and

               (vi) such counsel (A) is of the opinion that the Registration
Statement and Prospectus (except for financial statements and schedules and
other financial and statistical data included therein as to which such counsel
need not express any opinion) comply as to form in all material respects with
the Securities Act and the applicable rules and regulations of the Commission
thereunder, (B) has no reason to believe that (except for financial statements
and schedules and other financial and statistical data as to which such counsel
need not express any belief) the Registration Statement and the prospectus
included therein at the time the Registration Statement became effective
contained any untrue statement of a material fact or omitted to state a material
fact required to be stated therein or necessary to make the statements therein
not misleading and (C) has no reason to believe that (except for financial
statements and schedules and other

                                      -15-


financial and statistical data as to which such counsel need not express any
belief) the Prospectus contains any untrue statement of a material fact or omits
to state a material fact necessary in order to make the statements therein, in
the light of the circumstances under which they were made, not misleading.

          (f)  The Underwriters shall have received on the Closing Date an
opinion of Wilson Sonsini Goodrich & Rosati, Professional Corporation, counsel
for the Underwriters, dated the Closing Date, covering the matters referred to
in Sections 6(c)(iv), 6(c)(v), 6(c)(vii) (but only as to the statements in the
Prospectus under "Description of Capital Stock" and "Underwriters") and 6(c)(x)
above.

     With respect to Section 6(c)(x) above, Gray Cary Ware & Freidenrich LLP and
Wilson Sonsini Goodrich & Rosati, Professional Corporation, and with respect to
Section 6(e)(vi) above, Gray Cary Ware & Freidenrich LLP, may state that their
opinion and belief are based upon their participation in the preparation of the
Registration Statement and Prospectus and any amendments or supplements thereto
and review and discussion of the contents thereof, but are without independent
check or verification, except as specified. With respect to Section 6(e) above,
Gray Cary Ware & Freidenrich LLP may rely upon an opinion or opinions of counsel
for any Selling Stockholders and, with respect to factual matters and to the
extent such counsel deems appropriate, upon the representations of each Selling
Stockholder contained herein and in the Custody Agreement and Power of Attorney
of such Selling Stockholder and in other documents and instruments; provided
that (A) each such counsel for the Selling Stockholders is satisfactory to your
counsel, (B) a copy of each opinion so relied upon is delivered to you and is in
form and substance satisfactory to your counsel, (C) copies of such Custody
Agreements and Powers of Attorney and of any such other documents and
instruments shall be delivered to you and shall be in form and substance
satisfactory to your counsel and (D) Gray Cary Ware & Freidenrich LLP shall
state in their opinion that they are justified in relying on each such other
opinion.

     The opinions of Gray Cary Ware & Freidenrich LLP described in Sections 6(c)
and 6(e) above (and any opinions of counsel for any Selling Stockholder referred
to in the immediately preceding paragraph) shall be rendered to the Underwriters
at the request of the Company or one or more of the Selling Stockholders, as the
case may be, and shall so state therein.

          (g)  The Underwriters shall have received, on each of the date hereof
and the Closing Date, a letter dated the date hereof or the Closing Date, as the
case may be, in form and substance satisfactory to the Underwriters, from Ernst
& Young LLP, independent public accountants, containing statements and
information of the type ordinarily included in accountants' "comfort letters" to
underwriters with respect to the financial statements and certain financial
information contained in the Registration Statement and the Prospectus; provided
that the letter delivered on the Closing Date shall use a "cut-off date" not
earlier than the date hereof.

          (h)  The "lock-up" agreements, each substantially in the form of
Exhibit A hereto, between you and certain securityholders, officers and
directors of the Company covering at least [ ]% of the outstanding shares of
Common Stock or securities convertible into Common Stock of the Company relating
to sales and certain other dispositions of shares of Common Stock or certain

                                      -16-


other securities, delivered to you on or before the date hereof, shall be in
full force and effect on the Closing Date.

     The several obligations of the U.S. Underwriters to purchase Additional
Shares hereunder are subject to the delivery to the U.S. Underwriters on the
Option Closing Date of such documents as the U.S. Underwriters may reasonably
request with respect to the good standing of the Company, the due authorization
and issuance of the Additional Shares and other matters related to the issuance
of the Additional Shares.

     7.  Covenants of the Company.  In further consideration of the agreements
of the Underwriters herein contained, the Company covenants with each
Underwriter as follows:

          (a)  To furnish to you, without charge, [five (5)] signed copies of
the Registration Statement (including exhibits thereto) and for delivery to each
other Underwriter a conformed copy of the Registration Statement (without
exhibits thereto) and to furnish to you in New York City, without charge, prior
to 10:00 a.m. New York City time on the business day next succeeding the date of
this Agreement and during the period mentioned in Section 7(c) below, as many
copies of the Prospectus and any supplements and amendments thereto or to the
Registration Statement as you may reasonably request.

          (b)  Before amending or supplementing the Registration Statement or
the Prospectus, to furnish to you a copy of each such proposed amendment or
supplement and not to file any such proposed amendment or supplement to which
you reasonably object, and to file with the Commission within the applicable
period specified in Rule 424(b) under the Securities Act any prospectus required
to be filed pursuant to such Rule.

          (c)  If, during such period after the first date of the public
offering of the Shares as in the opinion of counsel for the Underwriters the
Prospectus is required by law to be delivered in connection with sales by an
Underwriter or dealer, any event shall occur or condition exist as a result of
which it is necessary to amend or supplement the Prospectus in order to make the
statements therein, in the light of the circumstances when the Prospectus is
delivered to a purchaser, not misleading, or if, in the opinion of counsel for
the Underwriters, it is necessary to amend or supplement the Prospectus to
comply with applicable law, forthwith to prepare, file with the Commission and
furnish, at its own expense, to the Underwriters and to the dealers (whose names
and addresses you will furnish to the Company) to which Shares may have been
sold by you on behalf of the Underwriters and to any other dealers upon request,
either amendments or supplements to the Prospectus so that the statements in the
Prospectus as so amended or supplemented will not, in the light of the
circumstances when the Prospectus is delivered to a purchaser, be misleading or
so that the Prospectus, as amended or supplemented, will comply with law.

          (d)  To endeavor to qualify the Shares for offer and sale under the
securities or Blue Sky laws of such jurisdictions as you shall reasonably
request.

          (e)  To make generally available to the Company's security holders and
to you as soon as practicable an earning statement covering the twelve-month
period ending September 30,

                                      -17-


2000 that satisfies the provisions of Section 11(a) of the Securities Act and
the rules and regulations of the Commission thereunder.

     8.  Expenses.  Whether or not the transactions contemplated in this
Agreement are consummated or this Agreement is terminated, the Company agrees to
pay or cause to be paid all expenses incident to the performance of its
obligations under this Agreement, including: (i) the fees, disbursements and
expenses of the Company's counsel, the Company's accountants and counsel for the
Selling Stockholders in connection with the registration and delivery of the
Shares under the Securities Act and all other fees or expenses in connection
with the preparation and filing of the Registration Statement, any preliminary
prospectus, the Prospectus and amendments and supplements to any of the
foregoing, including all printing costs associated therewith, and the mailing
and delivering of copies thereof to the Underwriters and dealers, in the
quantities hereinabove specified, (ii) all costs and expenses related to the
transfer and delivery of the Shares to the Underwriters, including any transfer
or other taxes payable thereon, (iii) the cost of printing or producing any Blue
Sky or Legal Investment memorandum in connection with the offer and sale of the
Shares under state securities laws and all expenses in connection with the
qualification of the Shares for offer and sale under state securities laws as
provided in Section 7(d) hereof, including filing fees and the reasonable fees
and disbursements of counsel for the Underwriters in connection with such
qualification and in connection with the Blue Sky or Legal Investment
memorandum, (iv) all filing fees and the reasonable fees and disbursements of
counsel to the Underwriters incurred in connection with the review and
qualification of the offering of the Shares by the National Association of
Securities Dealers, Inc. (the "NASD"), (v) all fees and expenses in connection
with the preparation and filing of the registration statement on Form 8-A
relating to the Common Stock and all costs and expenses incident to listing the
Shares on the Nasdaq National Market, (vi) the cost of printing certificates
representing the Shares, (vii) the costs and charges of any transfer agent,
registrar or depositary, (viii) the costs and expenses of the Company relating
to investor presentations on any "road show" undertaken in connection with the
marketing of the offering of the Shares, including, without limitation, expenses
associated with the production of road show slides and graphics, fees and
expenses of any consultants engaged in connection with the road show
presentations with the prior approval of the Company, travel and lodging
expenses of the representatives and officers of the Company and any such
consultants, and the cost of any aircraft chartered in connection with the road
show, and (ix) all other costs and expenses incident to the performance of the
obligations of the Company hereunder for which provision is not otherwise made
in this Section. It is understood, however, that except as provided in this
Section, Section 9 entitled "Indemnity and Contribution," and the last paragraph
of Section 11 below, the Underwriters will pay all of their costs and expenses,
including fees and disbursements of their counsel, stock transfer taxes payable
on resale of any of the Shares by them and any advertising expenses connected
with any offers they may make.

     The provisions of this Section shall not supersede or otherwise affect any
agreement that the Sellers may otherwise have for the allocation of such
expenses among themselves.

                                      -18-


     9.  Indemnity and Contribution.

          (a)  The Company and Gordon L. Stitt, agree, jointly and severally, to
indemnify and hold harmless each Underwriter and each person, if any, who
controls any Underwriter within the meaning of either Section 15 of the
Securities Act or Section 20 of the Securities Exchange Act of 1934, as amended
(the "Exchange Act"), from and against any and all losses, claims, damages and
liabilities (including, without limitation, any legal or other expenses
reasonably incurred in connection with defending or investigating any such
action or claim) caused by any untrue statement or alleged untrue statement of a
material fact contained in the Registration Statement or any amendment thereof,
any preliminary prospectus or the Prospectus (as amended or supplemented if the
Company shall have furnished any amendments or supplements thereto), or caused
by any omission or alleged omission to state therein a material fact required to
be stated therein or necessary to make the statements therein not misleading,
except insofar as such losses, claims, damages or liabilities are caused by any
such untrue statement or omission or alleged untrue statement or omission based
upon information relating to any Underwriter furnished to the Company in writing
by such Underwriter through you expressly for use therein. Notwithstanding
anything herein to the contrary, the Underwriters agree that they shall not seek
indemnification under this Section 9(a) from Gordon L. Stitt unless the
Underwriters shall first have sought indemnity from the Company under Section
9(a) and the Company has not agreed to satisfy such request for indemnification
in full within 30 days; provided, however, that the Underwriters shall not be
                        --------  -------
required to effect such initial demand upon the Company and wait such 30-day
period if it would prejudice their right to indemnification from Gordon L.
Stitt; and provided, further, that liability to Gordon L. Stitt under this
           --------  -------  ----
Section 9(a) shall be limited to an amount equal to the gross proceeds to such
Selling Stockholder from the sale of Offered Securities sold by such Selling
Stockholder under this agreement.

          (b)  Each Selling Stockholder agrees, severally and not jointly, to
indemnify and hold harmless the Company, its directors, its officers who sign
the Registration Statement and each person, if any, who controls the Company
within the meaning of either Section 15 of the Securities Act or Section 20 of
the Exchange Act, from and against any all losses, claims, damages and
liabilities (including, without limitation, any legal or other expenses
reasonably incurred in connection with defending or investigating any such
action or claim) caused by any untrue statement or alleged untrue statement of a
material fact contained in the Registration Statement or any amendment thereof,
any preliminary prospectus or the Prospectus (as amended or supplemented if the
Company shall have furnished any amendments or supplements thereto), or caused
by any omission or alleged omission to state therein a material fact required to
be stated therein or necessary to make the statements therein not misleading,
but only with reference to information relating to such Selling Stockholder
furnished in writing by or on behalf of such Selling Stockholder expressly for
use in the Registration Statement, any preliminary prospectus, the Prospectus or
any amendments or supplements thereto.

          (c)  Each Underwriter agrees, severally and not jointly, to indemnify
and hold harmless the Company, the Selling Stockholders, the directors of the
Company, the officers of the Company who sign the Registration Statement and
each person, if any, who controls the Company

                                      -19-


within the meaning of either Section 15 of the Securities Act or Section 20 of
the Exchange Act to the same extent as the foregoing indemnity set forth in
paragraph (a) above from the Sellers to such Underwriter, but only with
reference to information relating to such Underwriter furnished to the Company
in writing by such Underwriter through you expressly for use in the Registration
Statement, any preliminary prospectus, the Prospectus or any amendments or
supplements thereto.

          (d)  In case any proceeding (including any governmental investigation)
shall be instituted involving any person in respect of which indemnity may be
sought pursuant to Section 9(a) or 9(b), such person (the "indemnified party")
shall promptly notify the person against whom such indemnity may be sought (the
"indemnifying party") in writing and the indemnifying party, upon request of the
indemnified party, shall retain counsel reasonably satisfactory to the
indemnified party to represent the indemnified party and any others the
indemnifying party may designate in such proceeding and shall pay the fees and
disbursements of such counsel related to such proceeding. In any such
proceeding, any indemnified party shall have the right to retain its own
counsel, but the fees and expenses of such counsel shall be at the expense of
such indemnified party unless (i) the indemnifying party and the indemnified
party shall have mutually agreed to the retention of such counsel or (ii) the
named parties to any such proceeding (including any impleaded parties) include
both the indemnifying party and the indemnified party and representation of both
parties by the same counsel would be inappropriate due to actual or potential
differing interests between them. It is understood that the indemnifying party
shall not, in respect of the legal expenses of any indemnified party in
connection with any proceeding or related proceedings in the same jurisdiction,
be liable for the fees and expenses of more than one separate firm (in addition
to any local counsel) for all such indemnified parties and that all such fees
and expenses shall be reimbursed as they are incurred. Such firm shall be
designated in writing by Morgan Stanley, in the case of parties indemnified
pursuant to Section 9(a), and by the Company, in the case of parties indemnified
pursuant to Section 9(b). The indemnifying party shall not be liable for any
settlement of any proceeding effected without its written consent, but if
settled with such consent or if there be a final judgment for the plaintiff, the
indemnifying party agrees to indemnify the indemnified party from and against
any loss or liability by reason of such settlement or judgment. No indemnifying
party shall, without the prior written consent of the indemnified party, effect
any settlement of any pending or threatened proceeding in respect of which any
indemnified party is or could have been a party and indemnity could have been
sought hereunder by such indemnified party, unless such settlement includes an
unconditional release of such indemnified party from all liability on claims
that are the subject matter of such proceeding.

          (e)  To the extent the indemnification provided for in Section 9(a) or
9(b) is unavailable to an indemnified party or insufficient in respect of any
losses, claims, damages or liabilities referred to therein, then each
indemnifying party under such paragraph, in lieu of indemnifying such
indemnified party thereunder, shall contribute to the amount paid or payable by
such indemnified party as a result of such losses, claims, damages or
liabilities (i) in such proportion as is appropriate to reflect the relative
benefits received by the Company on the one hand and the Underwriters on the
other hand from the offering of the Shares or (ii) if the allocation provided by
clause 9(e)(i) above is not permitted by applicable law, in such proportion as
is appropriate to reflect not only the relative benefits referred to in clause
9(e)(i) above but also the relative fault of the

                                      -20-


Company on the one hand and of the Underwriters on the other hand in connection
with the statements or omissions that resulted in such losses, claims, damages
or liabilities, as well as any other relevant equitable considerations. The
relative benefits received by the Sellers on the one hand and the Underwriters
on the other hand in connection with the offering of the Shares shall be deemed
to be in the same respective proportions as the net proceeds from the offering
of the Shares (before deducting expenses) received by the Sellers and the total
underwriting discounts and commissions received by the Underwriters, in each
case as set forth in the table on the cover of the Prospectus, bear to the
aggregate Public Offering Price of the Shares. The relative fault of the Sellers
on the one hand and the Underwriters on the other hand shall be determined by
reference to, among other things, whether the untrue or alleged untrue statement
of a material fact or the omission or alleged omission to state a material fact
relates to information supplied by the Sellers or by the Underwriters and the
parties' relative intent, knowledge, access to information and opportunity to
correct or prevent such statement or omission. The Underwriters' respective
obligations to contribute pursuant to this Section 9 are several in proportion
to the respective number of Shares they have purchased hereunder, and not joint.

          (f)  The Sellers and the Underwriters agree that it would not be just
or equitable if contribution pursuant to this Section 9 were determined by pro
rata allocation (even if the Underwriters were treated as one entity for such
purpose) or by any other method of allocation that does not take account of the
equitable considerations referred to in Section 9(e). The amount paid or payable
by an indemnified party as a result of the losses, claims, damages and
liabilities referred to in the immediately preceding paragraph shall be deemed
to include, subject to the limitations set forth above, any legal or other
expenses reasonably incurred by such indemnified party in connection with
investigating or defending any such action or claim. Notwithstanding the
provisions of this Section 9, no Underwriter shall be required to contribute any
amount in excess of the amount by which the total price at which the Shares
underwritten by it and distributed to the public were offered to the public
exceeds the amount of any damages that such Underwriter has otherwise been
required to pay by reason of such untrue or alleged untrue statement or omission
or alleged omission. No person guilty of fraudulent misrepresentation (within
the meaning of Section 11(f) of the Securities Act) shall be entitled to
contribution from any person who was not guilty of such fraudulent
misrepresentation. The remedies provided for in this Section 9 are not exclusive
and shall not limit any rights or remedies which may otherwise be available to
any indemnified party at law or in equity.

          (g)  The indemnity and contribution provisions contained in this
Section 9 and the representations, warranties and other statements of the
Company and the Selling Stockholders contained in this Agreement shall remain
operative and in full force and effect regardless of (i) any termination of this
Agreement, (ii) any investigation made by or on behalf of any Underwriter or any
person controlling any Underwriter, any Selling Stockholder or any person
controlling any Selling Stockholder, or the Company, its officers or directors
or any person controlling the Company and (iii) acceptance of and payment for
any of the Shares.

     10.  Termination.  This Agreement shall be subject to termination by notice
given by you to the Company, if (a) after the execution and delivery of this
Agreement and prior to the Closing Date

                                      -21-


(i) trading generally shall have been suspended or materially limited on or by,
as the case may be, any of the New York Stock Exchange, the American Stock
Exchange, the National Association of Securities Dealers, Inc., the Chicago
Board of Options Exchange, the Chicago Mercantile Exchange or the Chicago Board
of Trade, (ii) trading of any securities of the Company shall have been
suspended on any exchange or in any over-the-counter market, (iii) a general
moratorium on commercial banking activities in New York shall have been declared
by either Federal or New York State authorities or (iv) there shall have
occurred any outbreak or escalation of hostilities or any change in financial
markets or any calamity or crisis that, in your judgment, is material and
adverse and (b) in the case of any of the events specified in clauses 10(a)(i)
through 10(a)(iv), such event, singly or together with any other such event,
makes it, in your judgment, impracticable to market the Shares on the terms and
in the manner contemplated in the Prospectus.

     11.  Effectiveness; Defaulting Underwriters.  This Agreement shall become
effective upon the execution and delivery hereof by the parties hereto.

     If, on the Closing Date or the Option Closing Date, as the case may be, any
one or more of the Underwriters shall fail or refuse to purchase Shares that it
has or they have agreed to purchase hereunder on such date, and the aggregate
number of Shares which such defaulting Underwriter or Underwriters agreed but
failed or refused to purchase is not more than one-tenth of the aggregate number
of the Shares to be purchased on such date, the other Underwriters shall be
obligated severally in the proportions that the number of Firm Shares set forth
opposite their respective names in Schedules II and III bears to the aggregate
number of Firm Shares set forth opposite the names of all such non-defaulting
Underwriters, or in such other proportions as you may specify, to purchase the
Shares which such defaulting Underwriter or Underwriters agreed but failed or
refused to purchase on such date; provided that in no event shall the number of
Shares that any Underwriter has agreed to purchase pursuant to this Agreement be
increased pursuant to this Section 11 by an amount in excess of one-ninth of
such number of Shares without the written consent of such Underwriter.  If, on
the Closing Date, any Underwriter or Underwriters shall fail or refuse to
purchase Firm Shares and the aggregate number of Firm Shares with respect to
which such default occurs is more than one-tenth of the aggregate number of Firm
Shares to be purchased,  and arrangements satisfactory to you, the Company and
the Selling Stockholders for the purchase of such Firm Shares are not made
within 36 hours after such default, this Agreement shall terminate without
liability on the part of any non-defaulting Underwriter, the Company or the
Selling Stockholders.  In any such case either you or the Company shall have the
right to postpone the Closing Date, but in no event for longer than seven days,
in order that the required changes, if any, in the Registration Statement and in
the Prospectus or in any other documents or arrangements may be effected.  If,
on the Option Closing Date, any Underwriter or Underwriters shall fail or refuse
to purchase Additional Shares and the aggregate number of Additional Shares with
respect to which such default occurs is more than one-tenth of the aggregate
number of Additional Shares to be purchased, the non-defaulting Underwriters
shall have the option (i) to terminate their obligation hereunder to purchase
Additional Shares or (ii) to purchase not less than the number of Additional
Shares that such non-defaulting Underwriters would have been obligated to
purchase in the absence of such default.  Any action taken under this paragraph
shall not relieve any defaulting Underwriter from liability in respect of any
default of such Underwriter under this Agreement.

                                      -22-


     If this Agreement shall be terminated by the Underwriters, or any of them,
because of any failure or refusal on the part of any Seller to comply with the
terms or to fulfill any of the conditions of this Agreement, or if for any
reason any Seller shall be unable to perform its obligations under this
Agreement, the Sellers will reimburse the Underwriters or such Underwriters as
have so terminated this Agreement with respect to themselves, severally, for all
out-of-pocket expenses (including the fees and disbursements of their counsel)
reasonably incurred by such Underwriters in connection with this Agreement or
the offering contemplated hereunder.

     12.  Counterparts.  This Agreement may be signed in two or more
counterparts, each of which shall be an original, with the same effect as if the
signatures thereto and hereto were upon the same instrument.

     13.  Applicable Law.  This Agreement shall be governed by and construed in
accordance with the internal laws of the State of New York.

     14.  Headings.  The headings of the sections of this Agreement have been
inserted for convenience of reference only and shall not be deemed a part of
this Agreement.

                                    Very truly yours,

                                    EXTREME NETWORKS, INC.

                                    By:  _______________________________
                                         Gordon L. Stitt
                                         President and Chief Executive Officer

                                    The Selling Stockholders
                                    named in Schedule I hereto,
                                    acting severally

                                    By:  _______________________________
                                         Attorney-in-Fact

                                      -23-


Accepted as of the date hereof

Morgan Stanley & Co. Incorporated
BancBoston Robertson Stephens Inc.
Dain Rauscher Wessels,
  a division of Dain Rauscher Incorporated
Hambrecht & Quist LLC
SG Cowen Securities Corporation
Thomas Weisel Partners LLC

Acting severally on behalf
  of themselves and the
  several Underwriters named
  in Schedule II hereto.

By: Morgan Stanley & Co. Incorporated

By: __________________________
Name:
Title:

Morgan Stanley & Co. International Limited
BancBoston Robertson Stephens International Limited
Dain Rauscher Wessels, a division of Dain Rauscher Incorporated
Hambrecht & Quist LLC
Societe Generale
Thomas Weisel Partners LLC

Acting severally on behalf
  of themselves and the
  several International Underwriters
  named in Schedule III hereto.

By: Morgan Stanley & Co. International Limited

By: __________________________
Name:
Title:

                                      -24-


                                                                      SCHEDULE I

                              SELLING STOCKHOLDERS



              Selling Stockholder                            Number of Shares to be Sold
- ------------------------------------------------  -------------------------------------------------
                                               





                                                              --------------------
Total
                                                              ====================



                                      -25-


                                                                     SCHEDULE II

                               U.S. UNDERWRITERS



                  Underwriter                        Number of U.S. Firm Shares to be Purchased
- ------------------------------------------------  -------------------------------------------------
                                               
Morgan Stanley & Co. Incorporated
BancBoston Robertson Stephens Inc.
Dain Rauscher Wessels,
    a division of Dain Rauscher Incorporated
Hambrecht & Quist LLC
SG Cowen Securities Corporation
Thomas Weisel Partners LLC
                                                               -------------------
         Total U.S. Firm Shares
                                                               ===================


                                      -26-


                                                                    SCHEDULE III

                           INTERNATIONAL UNDERWRITERS



                                                      Number of International Firm Shares to be
                  Underwriter                                         Purchased
- ------------------------------------------------  -------------------------------------------------
                                               
Morgan Stanley & Co. International Limited
BancBoston Robertson Stephens International
 Limited
Dain Rauscher Wessels,
    a division of Dain Rauscher Incorporated
Hambrecht & Quist LLC
Societe Generale
Thomas Weisel Partners LLC
                                                                 ------------------
         Total International Firm Shares
                                                                 ==================


                                      -27-


                                                                       Exhibit A

                             FORM OF LOCK-UP LETTER

                            ______________ ___, 1999

Morgan Stanley & Co. Incorporated
BancBoston Robertson Stephens Inc.
Dain Rauscher Wessels,
       a division of Dain Rauscher Incorporated
Hambrecht & Quist LLC
SG Cowen Securities Corporation
Thomas Weisel Partners LLC
c/o Morgan Stanley & Co. Incorporated
        1585 Broadway
        New York, NY 10036

Morgan Stanley & Co. International Limited
        25 Cabot Square
        Canary Wharf
        London E14 4QA
        England

     Dear Sirs and Mesdames:

     The undersigned understands that Morgan Stanley & Co. Incorporated
("Morgan Stanley") and Morgan Stanley & Co. International Limited ("MSIL")
propose to enter into an Underwriting Agreement (the "Underwriting Agreement")
with Extreme Networks, a Delaware corporation (the "Company"), providing for the
public offering (the "Public Offering") by the several Underwriters, including
Morgan Stanley and MSIL (the "Underwriters"), of  shares (the "Shares") of the
Common Stock, par value $0.001 per share, of the Company (the "Common Stock").
The undersigned further understands that in connection with the proposed Public
Offering, the Company intends to file with the Securities and Exchange
Commission a registration statement (the "Registration Statement") relating to
the Shares.

     To induce the Underwriters that may participate in the Public Offering to
continue their efforts in connection with the Public Offering, the undersigned
hereby agrees that, without the prior written consent of Morgan Stanley on
behalf of the Underwriters, it will not, during the period commencing on the
date hereof and ending 90 days after the date of the final prospectus relating
to the Public Offering (the "Prospectus"), (1) offer, pledge, sell, contract to
sell, sell any option or contract to purchase, purchase any option or contract
to sell, grant any option, right or warrant to purchase, lend, or otherwise
transfer or dispose of, directly or indirectly, any shares of Common Stock or
any securities convertible into or exercisable or exchangeable for Common Stock,
or (2) enter into any swap or other arrangement that transfers to another, in
whole or in part, any of the


economic consequences of ownership of the Common Stock, whether any such
transaction described in clause (1) or (2) above is to be settled by delivery of
Common Stock or such other securities, in cash or otherwise. The foregoing
sentence shall not apply to (a) the sale of any Shares to the Underwriters
pursuant to the Underwriting Agreement, (b) transactions relating to shares of
Common Stock or other securities acquired in open market transactions after the
completion of the Public Offering or (c) the sale of any Shares previously
released from the Lock-up Agreement entered into by the undersigned in
connection with the Company's initial public offering on April 8, 1999. In
addition, the undersigned agrees that, without the prior written consent of
Morgan Stanley on behalf of the Underwriters, it will not, during the period
commencing on the date hereof and ending 90 days after the date of the
Prospectus, make any demand for or exercise any right with respect to, the
registration of any shares of Common Stock or any security convertible into or
exercisable or exchangeable for Common Stock.

     Notwithstanding the foregoing, if the undersigned is an individual, he or
she may transfer any shares of Common Stock or securities convertible into or
exchangeable or exercisable for Common Stock either during his or her lifetime
or on death by will or intestacy to his or her immediate family or to a trust
the beneficiaries of which are exclusively the undersigned and/or a member or
members of his or her immediate family; provided further, if the undersigned is
a partnership, it may transfer any shares of Common Stock or securities
convertible into or exchangeable or exercisable for Common Stock to a partner of
such partnership or a retired partner of such partnership who retires after the
date hereof, or to the estate of any such partner or retired partner, and any
partner who is an individual may transfer such shares of Common Stock or
securities convertible into or exchangeable or exercisable for Common Stock
either during his or her lifetime or on death by will or intestacy to his or her
immediate family or to a trust the beneficiaries of which are exclusively the
undersigned and/or a member or members of his or her immediate family; provided,
however, that prior to any transfer pursuant to this paragraph, each transferee
shall execute an agreement, satisfactory to Morgan Stanley, pursuant to which
each transferee shall agree to receive and hold such shares of Common Stock, or
securities convertible into or exchangeable or exercisable for Common Stock,
subject to the provisions hereof, and there shall be no further transfer except
in accordance with the provisions hereof.  For the purposes of this paragraph,
"immediate family" shall mean spouse, lineal descendant, father, mother, brother
or sister of the transferor.

     Whether or not the Public Offering actually occurs depends on a number of
factors, including market conditions.  Any Public Offering will only be made
pursuant to an Underwriting Agreement, the terms of which are subject to
negotiation between the Company and the Underwriters.

                                      -2-


     This letter shall expire and be of no further force or effect upon the
earliest to occur of  (i) October 31, 1999, in the event that the Registration
Statement shall not have been declared effective on or before such date, (ii)
October 6, 1999, in the event that the Registration Statement shall not have
been filed on or before such date, and (iii) on such date as the Company and the
Underwriters have abandoned plans to have the Registration Statement declared
effective.

     Very truly yours,


     ---------------------------------------
     (Name of Stockholder)


     ---------------------------------------
     (Signature of Authorized Signatory)


     ---------------------------------------
     (Address)