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Exhibit 10.105
 OEM PURCHASE AGREEMENT
 SIXTH AMENDMENT
  RECITALS
 WHEREAS
 WHEREAS
 WHEREAS,
 WHEREAS,
 WHEREAS
 AGREEMENTS
 NOW THEREFORE,
 1.
    
    DEFINITIONS
 1.1
    
    All capitalized terms not defined in this Amendment shall have the same
meaning as set forth in the Agreement.1.2
    
    Customer shall mean the entity to which HP is obligated to provide Services
for Product(s) under the Service Agreement(s).1.3
    
    Power Pack Software shall mean the software products described in the
attached Exhibit A-7, which may be sold as a standalone software product or sold
bundled with hardware.
 
 [**]
    
    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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1.4
    
    Service Agreement shall mean agreements between HP and end-user Customers for
support services, Updates, and Upgrades for the Power Pack Software.1.5
    
    Services shall mean all services provided by HP to the Customers under a
Service Agreement related to the Power Pack Software.1.6
    
    [**]1.7
    
    Updates means any minor release of a Version including any Fix or
Workaround. As used in the definition of Version, Updates would be indicated by a
change in the z and/or a. [**]1.8
    
    Upgrade means any major release of a Version that includes new features or
functionality. As used in the definition of Version, Upgrades would be indicated by a
change in the x and/or y.1.9
    
    [**]
 2.
    
    [**]
 3.
    
    Except as expressly amended herein, all unmodified and remaining terms and conditions of the
Agreement shall remain in full force and effect. In the event of a conflict between the
Agreement and the Amendment, the terms of this Amendment shall govern.
 4.
    
    Brocade and HP agree that the Agreement is hereby amended to include the list of Power Pack
Software products attached to this Amendment, which shall be added to the Agreement as Exhibit
A-7. Such Power Pack Software will remain Software as defined in the Agreement.
 5.
    
    The Power Pack Software products listed in Exhibit A-7 will be supported according to the
terms of the Agreement including but not limited to Section 10 (Support Services) and Exhibit
D (Maintenance and Support).
 6.
    
    [**] Such HP launch shall include Service Agreements for the Power Pack Software products.
 7.
    
    Subject to the terms and conditions of the Agreement, [**] Such Exhibit C-1 is hereby made a
part of the Agreement.
 8.
    
    The parties hereby affirm that this Amendment does not apply to any other Software under the
Agreement that is not the subject matter of this Amendment, and the rights and obligations for
such other Software under the Agreement remain unaffected. [**]
 9.
    
    Prior to the Effective Date of this Amendment, the Power Pack Software has been sold by HP to
Customers as a stand alone software product and bundled with certain Brocade switches. [**]
 10.
    
    [**], for activities related to the support of Power Pack Software to Customers.
 
 [**]
    
    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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11.
    
    HP agrees to use reasonable commercial efforts to encourage Customers acquiring Power Pack
Software licenses also [**].
 12.
    
    Brocade agrees to use reasonable commercial efforts to market the HP Service Agreements as
part of Brocades HP related marketing materials developed after the Effective Date.
 13.
    
    [**]
 14.
    
    Within forty-five (45) days after the end of each HP fiscal quarter, HP shall send Brocade a
statement detailing the [**]. Each party will use the most current and efficient processes to
satisfy [**]
  a)
    
    [**]b)
    
    [**]
 16.
    
    [**] No [**] to Brocade from HP for any Power Pack Software that is under initial 13 month
product warranty, since the applicable [**]
 17.
    
    [**]
 18.
    
    HP will not [**] for licensing the Power Pack Software to HPs Authorized Service Providers
who are providing Services on behalf of HP to Customers provided however, that such licenses
shall be limited to providing support Services to Customers, and shall not be used by such
Authorized Service Providers as an end user of the Brocade products. Any Power Pack Software
licenses provided to such Authorized Service Providers beyond such Customer support Services
shall be subject to [**]
 19.
    
    Power Pack Software licenses [**] for development and support of Brocade products or HP
solutions using Brocade products and [**]
 
 [**]
    
    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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AGREED:BROCADE COMMUNICATIONS
SYSTEMS INC. (SUPPLIER)
    
    HEWLETT-PACKARD COMPANY
(HP)By:
    
    
    
    By::Name:
    
    
    Name:Title:
    
    
    Title:AGREED:BROCADE COMMUNICATIONS
SWITZERLAND, SARL. (SUPPLIER)
    
    HEWLETT-PACKARD COMPANY
(HP)By:
    
    
    
    By::Name:
    
    
    Name:Title:
    
    
    Title:
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Exhibit (A-7)
 Power Pack Software Products Definition
 Hardware Products
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 Software Products
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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.
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Exhibit  (C-1)
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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.
  Page 6 of 6