Document:

<PAGE>

                                                                   EXHIBIT 10.79

                                 AMENDMENT NO. 8
                               PURCHASE AGREEMENT

This Amendment No. 8 ("the Amendment") to the Purchase Agreement (the
"Agreement") dated January 25, 2000 by and among Brocade Communications Systems,
Inc., a corporation organized under the laws of the State of Delaware, U.S.A.,
and having its principal place of business at 1745 Technology Drive, San Jose,
California 95110 ("Brocade-US"), and Brocade Communications Switzerland SarL, a
corporation organized under the laws of Geneva, and having its principal place
of business at 29-31 Route de l'Aeroport, Case Postale 105 CH-1215 Geneva 15,
Switzerland ("Brocade-Switzerland"), (collectively "SUPPLIER") and EMC
Corporation, ("EMC"), a Massachusetts corporation, is made this 19th day of July
2004 by and between SUPPLIER and EMC and commences on the last date accepted and
executed by SUPPLIER ("Effective Date"). [**]

WHEREAS, the parties wish to amend the Agreement [**];

NOW THEREFORE, in consideration of the above and the other respective promises
of the parties set forth herein, the parties hereto agree as follows:

1) Exhibit A, [**] is hereby deleted and replaced with the attached Exhibit A
[**].

2) No Other Changes. All Other terms and conditions of the Agreement shall
remain unchanged.

3) Counterparts. This Amendment may be executed in two or more counterparts, all
of which, taken together, shall be regarded as one and the same instrument.

IN WITNESS WHEREOF, the parties hereto have executed this Amendment No. 8 to OEM
Purchase and License Agreement by their duly authorized representatives. Such
execution of the Amendment may be in three counterparts, each of which shall be
an original and together which shall constitute one and the same instrument.

Executed and agreed to:                     Executed and agreed to:

BROCADE COMMUNICATIONS SYSTEMS, INC.        EMC CORPORATION
("Supplier")                                ("EMC")

Signature: /s/ MICHAEL KLAYKO               Signature: WILLIAM MONAGLE  10/13/04
           ------------------                          ---------------

Name: MICHAEL KLAYKO                        Name: WILLIAM MONAGLE

Title: VP                                   Title: VICE PRESIDENT
                                                   CORPORATE PROCUREMENT
                                                   EMC CORPORATION

Date: 11/1/04                               Date: _________________________

BROCADE COMMUNICATIONS SWITZERLAND, SARL.

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[**]Certain information on this page has been omitted and filed separately with
the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.

                            EMC/BROCADE CONFIDENTIAL
<PAGE>

("Supplier")

Signature: /s/ IAN WHITING
           ---------------

Name: Ian Whiting

Title: Vice President - EMEA

Place: Geneva, Switzerland

                            EMC/BROCADE CONFIDENTIAL
<PAGE>

                                    EXHIBIT A

                              PRODUCTS AND PRICING

                            EMC/BROCADE CONFIDENTIAL
<PAGE>

EMC EXHIBIT A: PRODUCT PRICE SHEET - REVISED 9/22/04
REVISIONS: Q3 PRICE REDUCTIONS EFFECTIVE 10/1/04

<TABLE>
<CAPTION>
BRCD PN#   EMC PN#   REV    EMC MODEL#                            DESCRIPTION                                   PRICE
--------   -------   ----   ----------    ----------------------------------------------------------------     --------
<S>        <C>       <C>    <C>           <C>                                                                  <C>
  [**]       [**]    A02       [**]       2GB, 8 PORT SW3200 ENTRY-FABRIC SWITCH                                   [**]
  [**]       [**]    A01       [**]       2GB, 8 PORT SW3200 FULL-FABRIC SWITCH                                    [**]
  [**]       [**]    A01       [**]       2GB, 8 PORT SW3250 ENTRY-FABRIC SWITCH (GENERAL)                     (A) [**]
  [**]       [**]    A01       [**]       2GB, 8 PORT SW3250 ENTRY-FABRIC SWITCH (US FED ONLY)                 (A) [**]
  [**]       [**]    A01       [**]       2GB, 8 PORT 3250-VL2E EZSWITCH (GENERAL)                             (A) [**]
  [**]       [**]    A01       [**]       2GB, 8 PORT 3250-VL2E EZSWITCH (US FED ONLY)                         (A) [**]
  [**]       [**]    A01       [**]       2GB, 8 PORT SW3250 FULL-FABRIC SWITCH (US FED ONLY)                      [**]
  [**]       [**]    AO1       [**]       2GB, 8 PORT SW3250 FULL-FABRIC SWITCH (GENERAL)                          [**]
  [**]       [**]    A01       [**]       SW32X0 OPTIONAL SOFTWARE, TRUNKING                                       [**]
  [**]       [**]    A01       [**]       SW32X0 OPTIONAL SOFTWARE, FABRIC WATCH                                   [**]
  [**]       [**]    A01       [**]       SW32X0 OPTIONAL SOFTWARE, EXTENDED FABRIC                                [**]
  [**]       [**]    A01       [**]       SW32X0 OPTIONAL SOFTWARE, PERFORMANCE MONITOR                            [**]
  [**]       [**]    A01       [**]       SW3220 OPTIONAL SOFTWARE, QUICKLOOP                                      [**]
  [**]       [**]    A01       [**]       SW32X0 OPTIONAL SOFTWARE, EMC BUNDLE (TRK, FWH, EXF, PRF)                [**]
  [**]       [**]    A01       [**]       SW3220 OPTIONAL SOFTWARE UPGRADE ENTRY-FULL: BUNDLED                     [**]
  [**]       [**]    A01       [**]       SW3220 OPTIONAL SOFTWARE UPGRADE ENTRY-FULL: POST SALE                   [**]
  [**]       [**]    A01       [**]       SW32X0 OPTIONAL SOFTWARE, SECURE OS                                      [**]
  [**]       [**]    A01       [**]       SW3252 TWO DOMAIN TO FULL FABRIC UPGRADE LICENSE KEY - POST SALE         [**]
  [**]       [**]    A01       [**]       SW3252 TWO DOMAIN TO FULL FABRIC UPGRADE LICENSE KEY - BUNDLED           [**]
</TABLE>

Note (A): The [**] Software Maintenance is [**]. The above price includes the
purchase of Software Maintenance for an [**], commencing on the date of
purchase, and [**]. Fees for Software Maintenance [**] are non-refundable.
Thereafter, Software Maintenance may be renewed [**], at EMC's discretion, for
[**]. The above price also [**]for [**].

<TABLE>
<S>          <C>     <C>       <C>        <C>                                                                  <C>
  [**]       [**]    A08       [**]       2GB, 16 PORT SW3800 FULL-FABRIC SWITCH                                   [**]
  [**]       [**]    [**]      [**]       [**]                                                                 (B) [**]
  [**]       [**]    [**]      [**]       [**]                                                                 (B) [**]
</TABLE>

[**] Certain information on this page has been omitted and filed separately with
the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.

<PAGE>

<TABLE>
<S>          <C>     <C>       <C>        <C>                                                                      <C>
  [**]       [**]    [**]      [**]       [**]                                                                     [**]
  [**]       [**]    [**]      [**]       [**]                                                                     [**]
  [**]       [**]    00        [**]       SW3800 FRU, POWER SUPPLY                                                 [**]
  [**]       [**]    00        [**]       SW3800 FRU, FAN                                                          [**]
  [**]       [**]    A01       [**]       SW38XX OPTIONAL SOFTWARE, TRUNKING                                       [**]
  [**]       [**]    A01       [**]       SW38XX OPTIONAL SOFTWARE, FABRIC WATCH                                   [**]
  [**]       [**]    A01       [**]       SW38XX OPTIONAL SOFTWARE, EXTENDED FABRIC                                [**]
  [**]       [**]    A01       [**]       SW38XX OPTIONAL SOFTWARE, PERFORMANCE MONITOR                            [**]
  [**]       [**]    A01       [**]       SW3800 OPTIONAL SOFTWARE, QUICKLOOP                                      [**]
  [**]       [**]    NA        [**]       SW38XX OPTIONAL SOFTWARE, EMC BUNDLE (TRK, FWH, EXF, PRF)                [**]
  [**]       [**]    A01       [**]       SW38XX OPTIONAL SOFTWARE, SECURE OS                                      [**]
  [**]       [**]    A01       [**]       SW3852 TWO DOMAIN TO FULL FABRIC UPGRADE LICENSE KEY - BUNDLED           [**]
</TABLE>

Note (B): The [**] Software Maintenance is [**] . The above price includes the
purchase of Software Maintenance for an [**] , commencing on the date of
purchase, [**] . Fees for Software Maintenance [**] are non-refundable.
Thereafter, Software Maintenance may be renewed [**] , at EMC's discretion, for
[**] . The above price also [**] for [**] .

<TABLE>
<S>          <C>     <C>       <C>        <C>                                                                  <C>
  [**]       [**]    [**]      [**]       [**]                                                                 (C) [**]
  [**]       [**]    A01       [**]       FRU, POWER SUPPLY                                                        [**]
  [**]       [**]    A01       [**]       FRU, FAN                                                                 [**]
  [**]       [**]    A00       [**]       FRU, SFP, SWL, 1PK (FINISAR ONLY)                                        [**]
  [**]       [**]    A01       [**]       FRU, SFP, LWL, 1PK (FINISAR ONLY)                                        [**]
  [**]       [**]    A01       [**]       OPTIONAL SOFTWARE, TRUNKING                                              [**]
  [**]       [**]    A01       [**]       OPTIONAL SOFTWARE, FABRIC WATCH                                          [**]
  [**]       [**]    A01       [**]       OPTIONAL SOFTWARE, EXTENDED FABRIC                                       [**]
  [**]       [**]    A01       [**]       OPTIONAL SOFTWARE, PERFORMANCE MONITOR                                   [**]
  [**]       [**]    A01       [**]       OPTIONAL SOFTWARE, EMC BUNDLE (TRK, FWH, EXF, PRF)                       [**]
  [**]       [**]    A01       [**]       OPTIONAL SOFTWARE, SECURE OS                                             [**]
</TABLE>

[**] Certain information on this page has been omitted and filed separately with
the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.

<PAGE>

Note (C): The [**] Software Maintenance is [**] . The above price includes the
purchase of Software Maintenance for an [**] , commencing on the date of
purchase, and [**]. Fees for Software Maintenance [**] are non-refundable.
Thereafter, Software Maintenance may be renewed [**] , at EMC's discretion, for
[**] .

<TABLE>
<S>          <C>     <C>       <C>        <C>                                                                  <C>
  [**]       [**]    A04       [**]       2GB, 64 PORT ENTERPRISE (WEBTOOLS, ZONING)                           (D) [**]
  [**]       [**]    [**]      [**]       [**]                                                                 (E) [**]
  [**]       [**]              [**]       UPGRADE KIT, SW12000 TO 24000 CONSISTS OF 2CPs                       (F) [**]
  [**]       [**]    A01       [**]       FRU, SW12000 CHASSIS                                                     [**]
  [**]       [**]    A01       [**]       FRU, DIRECTOR UNIVERSAL CHASSIS                                          [**]
  [**]       [**]    A00       [**]       FRU, SW12000 PORT CARD WITH OPTICS                                       [**]
  [**]       [**]    [**]      [**]       [**]                                                                     [**]
  [**]       [**]    A00       [**]       FRU, SW12000 CP                                                          [**]
  [**]       [**]    A00       [**]       FRU, SW24000 CP                                                          [**]
  [**]       [**]    A00       [**]       FRU, POWER SUPPLY                                                        [**]
  [**]       [**]    NA        [**]       FRU, POWER CORD, NO AMERICAN                                             [**]
  [**]       [**]    NA        [**]       FRU, POWER CORD, UK/IRE                                                  [**]
  [**]       [**]    NA        [**]       FRU, POWER CORD, CONT EU                                                 [**]
  [**]       [**]    NA        [**]       FRU, POWER CORD, AUST/NZ                                                 [**]
  [**]       [**]    NA        [**]       FRU, POWER CORD, OTHER 230V                                              [**]
  [**]       [**]    NA        [**]       FRU, BROCADE RACKMOUNT KIT                                               [**]
  [**]       [**]    A00       [**]       FRU, BLOWER                                                              [**]
  [**]       [**]    NA        [**]       FRU, WWN BEZEL                                                           [**]
  [**]       [**]    A00       [**]       FRU, WWN CARD                                                            [**]
  [**]       [**]    NA        [**]       FRU, CHASSIS DOOR                                                        [**]
  [**]       [**]    NA        [**]       FRU, PORT CARD SLOT FILLER                                               [**]
  [**]       [**]    NA        [**]       FRU, POWER SUPPLY SLOT FILLER                                            [**]
  [**]       [**]    NA        [**]       FRU, CABLE MANAGEMENT TRAY                                               [**]
  [**]       [**]    NA        [**]       FRU, BLADE BOX PACKAGING ONLY                                            [**]
  [**]       [**]    NA        [**]       FRU, BLOWER BOX PACKAGING ONLY                                           [**]
  [**]       [**]    A03       [**]       FRU, EMC CUSTOM DOOR KIT SW12000                                         [**]
  [**]       [**]    A03       [**]       FRU, EMC CUSTOM DOOR KIT SW24000                                         [**]
  [**]       [**]    NA        [**]       OPTIONAL SOFTWARE, TRUNKING                                              [**]
  [**]       [**]    NA        [**]       OPTIONAL SOFTWARE, FABRIC WATCH                                          [**]
  [**]       [**]    NA        [**]       OPTIONAL SOFTWARE, EXTENDED FABRIC                                       [**]
  [**]       [**]    NA        [**]       OPTIONAL SOFTWARE, PERFORMANCE MONITOR                                   [**]
  [**]       [**]    NA        [**]       OPTIONAL SOFTWARE, EMC BUNDLE (TRK, FWH, EXF, PRF)                       [**]
  [**]       [**]    A01       [**]       OPTIONAL SOFTWARE, SECURE OS                                             [**]
</TABLE>

Note (D): The [**] Software Maintenance is [**] . The above price includes the
purchase of Software Maintenance for an [**] , commencing on the date of
purchase, and [**] . Fees for Software Maintenance [**] are non-refundable.
Thereafter, Software Maintenance may be renewed [**] , at EMC's discretion, for
[**] .

Note (E): The [**] Software Maintenance is [**] . The above price includes the
purchase of Software Maintenance for an [**] , commencing on the date of
purchase, and [**] . Fees for Software Maintenance [**] are non-refundable.
Thereafter, Software Maintenance may be renewed [**] , at EMC's discretion, for
[**] . The above price also [**] for [**] .

[**] Certain information on this page has been omitted and filed separately with
the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.

<PAGE>

Note (F): The [**] Software Maintenance is [**] . The above price includes the
purchase of Software Maintenance for an [**] , commencing on the date of
purchase, and [**] . Fees for Software Maintenance [**] are non-refundable.
Thereafter, Software Maintenance may be renewed [**] , at EMC's discretion, for
[**] . The above price also [**] for [**] .

ROUTER

<TABLE>
<S>          <C>     <C>       <C>        <C>                                                                  <C>
  [**]       [**]    A01       [**]       16 PORT SILKWORM MULTI-PROTOCOL ROUTER, 2PS, 16 SWL SFP,
                                          SOFTWARE UPDATES, 2YR                                                (G) [**]
  [**]       [**]    A00       [**]       ROUTER FAN FRU                                                           [**]
  [**]       [**]    A00       [**]       ROUTER POWER SUPPLY FRU                                                  [**]
  [**]       [**]    NA        [**]       XPATH FCIP                                                               [**]
  [**]       [**]    NA        [**]       XPATH FIBRE CHANNEL ROUTING SERVICE                                      [**]
  [**]       [**]    NA        [**]       ROUTER/FCIP BUNDLE                                                       [**]
  [**]       [**]    A01                  ROUTER RAILKIT                                                           [**]
</TABLE>

Note (G): The [**] the purchase of Software Maintenance for an [**] , commencing
on the date of purchase, and [**] . Fees for Software Maintenance during [**]
are non-refundable. Thereafter, Software Maintenance may be renewed [**], at
EMC's discretion, for [**] as follows: [**]

FABRIC MANAGER

<TABLE>
<S>          <C>     <C>       <C>        <C>                                                                      <C>
  [**]       [**]    NA        [**]       FM 4.0 BASE                                                              [**]
  [**]       [**]    NA        [**]       FM 4.0 STANDARD                                                          [**]
  [**]       [**]    NA        [**]       FM 4.0 ENTERPRISE                                                        [**]
  [**]       [**]    NA        [**]       FM 3.0 UPGRADE                                                           [**]
  [**]       [**]    NA        [**]       FM 4.0 BASE TO STANDARD UPGRADE                                          [**]
  [**]       [**]    NA        [**]       FM 4.0 BASE TO ENTERPRISE UPGRADE                                        [**]
  [**]       [**]    NA        [**]       FM 4.0 STANDARD TO ENTERPRISE UPGRADE                                    [**]
</TABLE>

Note: The [**] the purchase of Software Maintenance for an [**], commencing on
the date of purchase, and [**]. Fees for Software Maintenance during [**] are
non-refundable. Thereafter, Software Maintenance may be renewed [**], at EMC's
discretion, for [**] as follows: [**].

[**] Certain information on this page has been omitted and filed separately with
the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.<PAGE>

                                                                   EXHIBIT 10.80

                             OEM PURCHASE AGREEMENT

                                 FIRST AMENDMENT

This FIRST Amendment ("Amendment") effective as of the 1st day of April 2004 ,
(the "Effective Date") amends the OEM Purchase Agreement (the "Agreement") dated
December 16, 2002, by and between HEWLETT-PACKARD COMPANY, a Delaware
corporation having its principal place of business at 3000 Hanover Street, Palo
Alto, California 94304 ("HP") and BROCADE COMMUNICATIONS SYSTEMS, INC. a
Delaware corporation having its principal place of business at 1745 Technology
Drive, San Jose, California 95110, and BROCADE COMMUNICATIONS SYSTEMS
SWITZERLAND SARL., a corporation organized under the laws of Geneva, and having
its principal place of business at 29 Route de l'Aeroport Case Postale 105,
CH-1215 Geneva 15, Switzerland (collectively "Supplier").

RECITALS

WHEREAS, HP and Supplier entered into an OEM Purchase Agreement ("OEM Purchase
Agreement") with an effective date of December 16, 2002 which specified the
terms and conditions under which Supplier sells, licenses and supports certain
OEM Products identified therein;

WHEREAS, HP and Supplier desire to enter into this Amendment to amend certain
provisions of the Agreement.

AGREEMENTS

NOW, THEREFORE, in consideration of the mutual covenants contained herein, and
for other good and valuable consideration the receipt and sufficiency of which
are hereby acknowledged, HP and Supplier agree as follows:

1.    DEFINITIONS. Terms used in this Amendment that are not defined herein
      shall have the meaning given thereto in the Agreement.

2.    CONFIRMATION AND RATIFICATION. Except as expressly amended herein all
      unmodified and remaining terms and conditions of the Agreement shall
      remain in full force and effect. All capitalized terms not defined in this
      Amendment shall have the meaning set forth in the Agreement. In the event
      a conflict between the Agreement and this Amendment, the terms of this
      Amendment shall govern.

3.    AMENDMENTS . HP and Supplier hereby agree that the Agreement is hereby
      amended as follows:

      3.1.  Add new Exhibit [**] that defines the current process by which
            Brocade ships and HP receives software license upgrades for
            installation in Brocade's Fibre Channel switches.

4.    COUNTERPARTS. This Amendment may be executed in counterparts, each of
      which will be deemed an original, but both of which together will
      constitute one and the same instrument. The parties agree that facsimile
      signatures of the parties will be binding.

----------
[**] Certain information on this page has been omitted and filed separately with
the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.

<PAGE>

IN WITNESS WHEREOF, HP and Supplier have entered into this Amendment as of the
Effective Date as provided above.

AGREED:

BROCADE COMMUNICATIONS                      HEWLETT-PACKARD COMPANY
SYSTEMS INC. ("SUPPLIER")                   ("HP")

By: /s/ MICHAEL KLAYKO                      By: /s/ RICHARD GENTILINI
    ------------------                          ---------------------

Name: MICHAEL KLAYKO                        Name: RICHARD GENTILINI

Title: VP   11/2/04                         Title: DIRECTOR, SWD PROCUREMENT

BROCADE COMMUNICATIONS
SWITZERLAND, SARL. ("SUPPLIER")

By: /s/ IAN WHITING
    ---------------

Name: IAN WHITING

Title: VICE PRESIDENT EMEA

<PAGE>

                                  EXHIBIT L OF
                                 FIRST AMENDMENT

                       BROCADE SOFTWARE LICENSE REDEMPTION
                             PRINT ON DEMAND PROCESS

The following is a detail of the current Print-on-Demand process.

DEFINITIONS:

ENTITLEMENT CERTIFICATE - A document that is created by [**], which contains the
REGISTRATION NUMBER, an HP part number, and a description of the software
license.

HP - The [**].

LICENSE KEY - A string of characters that can be applied to a unique switch to
enable a license feature or set of features, that have been purchased by HP,
along with the corresponding switch. A License Key is only valid on a unique
switch and cannot be directly transferred between switches. A License Key can be
reinstalled on the switch but will only enable the same feature. This is
provided by Brocade to [**] when a customer presents a REGISTRATION NUMBER for
REDEMPTION TO [**].

[**] - Third party supplier who manages HP customers' license redemptions.
Tracks License Key detail as it moves from Brocade to HP, as well as when the
customer redeems their license.

PAPER PACK - The final product that is manufactured by HP, which contains the
ENTITLEMENT CERTIFICATE, a software license agreement, and instructions to the
customer on how to redeem the Brocade software license. Consists of two pieces
of paper, folded in half and enclosed in a cardboard envelope.

[**] - Process that HP uses to convert an ENTITLEMENT CERTIFICATE to a PAPER
PACK.

REDEMPTION - Customer presents an ENTITLEMENT CERTIFICATE to [**] to activate a
Brocade software license feature.

REGIONS - HP stocking locations where inventory is kept. [**].

REGISTRATION NUMBER - A unique number that [**]creates to correspond with each
unique TRANSACTION KEY. This is the only information that HP or customers see
when Brocade software is purchased from HP, and is the first string of numbers
that is used to initiate a REDEMPTION of a Brocade software license.

REPAIR KEY - A TRANSACTION KEY provided to HP/[**] [**]to be used only by HP
service personnel to transfer an after market license from a defective Brocade
switch to a field replaced switch. Brocade has the right to periodically audit
the use of the repair licenses. During the course of such audit, if Brocade
finds that a REPAIR KEY is used on switches that are not part of a defective
switch replacement, Brocade will [**]. The charge will be based on the current
contractual price for a Transaction Key.

TRANSACTION KEY - A unique serial number that is provided by Brocade to HP
whenever HP purchases a software feature license for a Brocade product. A
Transaction Key can be provided either in paper form or electronically and
entitles HP to obtain a License Key for a single or a set of licensed features
on a specific

----------
[**] Certain information on this page has been omitted and filed separately with
the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.

<PAGE>

class of switch. A single Transaction Key can only be applied for a single
switch (designated by its WWN). A Transaction Key is submitted to a "web site
application" with a switch serial number and WWN. This operation generates a
license key, which is then installed to the switch. A Transaction Key can only
be used once and will no longer be valid once a License Key has been issued in
exchange.

PROCESS FLOW:

1.    HP provides Brocade with a purchase order for invoicing purposes for each
part number.

2.    [**] places [**] order with Brocade for Transaction Keys, based on HP
[**]previously established.

3.    Brocade electronically sends Transaction Keys to [**].

4.    [**] creates a corresponding Registration Number for each Transaction Key
and stores in a database that tracks the details of the movement of that key as
it routes through [**].

5.    HP places an order with [**]for an Entitlement Certificate.

6.    [**] creates and sends Entitlement Certificates to HP. [**]. [**] batches
the Entitlement Certificates for [**] and sends them to Brocade. [**].

7.    HP manufactures a Paper Pack, which contains the Entitlement Certificate,
a software license agreement, and instructions for Redemption of the software
license.

8.    Customer contacts [**] to redeem software license, using the Entitlement
Certificate with a Registration Number they have received in the Paper Pack.

9.    [**] cross references the Registration Number to the Transaction Key
number and asks Brocade for a License Key. [**] provides Brocade with the
worldwide name and serial number of the switch, so that the license can be
associated with a specific switch.

10.   Brocade will make available to [**] a License Key redemption code on its
website. [**] redeems the License Key via the Brocade website for processing to
the customer.

----------
[**]Certain information on this page has been omitted and filed separately with
the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.

<PAGE>

                            ATTACHMENT A TO EXHIBIT L

                     BUSINESS AND TECHNICAL SUPPORT CONTACTS

THE FOLLOWING PERSONS ARE DESIGNATED TO SERVE AS BUSINESS SUPPORT CONTACTS:

SUPPLIER:                                   HP:
--------                                    ---
NAME:  [**]                         NAME:   [**]
HP Account Manager                          Commodity Manager
ADDRESS:   Brocade Communications           ADDRESS: Hewlett-Packard Company
1745 Technology Drive                       8000 Foothills Blvd.
San Jose, CA 95110                          Roseville, Ca  95747
PHONE: 408-333-[**]                         PHONE: 916-[**]
FAX:  408-487-[**]                          FAX:   916-[**]
EMAIL:[**]                                  EMAIL: [**]

SUPPLIER:
NAME:  [**]
HP/Brocade Account Manager
ADDRESS:  [**]
[**]
[**]
PHONE: 801-434-[**]
EMAIL: [**]

THE FOLLOWING PERSONS ARE DESIGNATED AS TECHNICAL SUPPORT CONTACTS:

SUPPLIER:                                   HP:
--------                                    ---
NAME:  [**]                         NAME:   [**]
Brocade Customer Support                    Total Customer Experience Support
ADDRESS:   Brocade Communications           ADDRESS: Hewlett-Packard Company
1745 Technology Drive                       8000 Foothills Blvd.
San Jose, CA 95110                          Roseville, Ca  95747
PHONE:  800-ATFIBRE                         PHONE:  916-[**]
EMAIL: support@brocade.com                  EMAIL:  [**]

----------
[**]Certain information on this page has been omitted and filed separately with
the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.

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