April 21, 2008 Mr. Michael Harrison Brocade Communications Systems, Inc. 1745 Technology Drive San Jose, CA 95110 Subject: Amendment 33 to SOW#1 of the IBM/Brocade Goods Agreement ROC-P-68

Exhibit 10.4

0000 Xxxxxxxxxx Xxxx
XXX, XX 00000

April 21, 2008

Mr. Xxxxxxx Xxxxxxxx
Brocade Communications Systems, Inc.
0000 Xxxxxxxxxx Xxxxx
Xxx Xxxx, XX 00000

Subject: Amendment 33 to SOW#1 of the IBM/Brocade Goods Agreement ROC-P-68

This letter (the “Amendment”) serves as Amendment Number 33 to SOW#1, including all amendments thereto (“SOW#1”) of the Goods Agreement ROC-P-68 (the “Agreement”), which the parties hereto do mutually agree to amend as follows

1. Delete the table in its entirety in Section 1.1, “Specifications” and replace with the following

IBM Specification/Attachments
(if applicable)		Engineering Change Level		Description
[**]		[**]		[**]
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[**] Certain information on this page has been omitted and filed separately with the Securities and Exhange Commission. Confidential treatment has been requested with respect to the omitted portions.

Page 1 of 28

IBM Specification/Attachments
(if applicable)		Engineering Change Level		Description
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2. Exhibit A of the SOW#1 is hereby deleted in its entirety and replaced with Exhibit A attached hereto.

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

Page 2 of 28

The effective date of this Amendment shall be the date on the top of this Amendment (the “Effective Date”).

The parties acknowledge that they have read this Amendment, understand it, and agree to be bound by its terms and conditions. All capitalized terms not defined herein shall have the meaning set forth in the Goods Agreement or the SOW #1. All other terms and conditions of the Goods Agreement and SOW#1 that are unaffected by the revisions set forth in this Amendment shall remain in full force and effect. Further, the parties agree that this Amendment and the Goods Agreement and SOW#1 are the complete and exclusive statement of the agreement between the parties, superseding all proposals or other prior agreement, oral or written, and all other communications between the parties relating to this subject.

Accepted and Agreed To:

Accepted and Agreed To:

International Business Machines Corporation

Brocade Communications Systems, Inc.

By:

By:

Authorized Signature

Date

Authorized Signature

Date

Type or Print Name

Type or Print Name

Title & Organization

Title & Organization

Address:

Address:     0000 Xxxxxxxxxx Xxxxx                     Xxx Xxxx, XX 00000

Accepted and Agreed To:

Brocade Communications Switzerland, SarL

By:

Authorized Signature                 Date

Xxxxxx Plechschmid

Type or Print Name

Vice President, EMEA

Title & Organization

Page 3 of 28

AMENDMENT #33 to SOW-1
EXHIBIT A

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Description

Unit Price

price of product)

Pricing

1Gbit/sec Switch Products and Software

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

Page 4 of 28

**13 months

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IBM

Maintenance

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Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

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FC #

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Description

Unit Price

price of product)

Pricing

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

Page 5 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

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Description

Unit Price

price of product)

Pricing

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

Page 6 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

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Description

Unit Price

price of product)

Pricing

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

Page 7 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

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Description

Unit Price

price of product)

Pricing

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

Page 8 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

NUMA-Q PN

Description

Unit Price

price of product)

Pricing

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Page 9 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

NUMA-Q PN

Description

Unit Price

price of product)

Pricing

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

Page 10 of 28

**13 months

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Software

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IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

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price of product)

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Page 11 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

NUMA-Q PN

Description

Unit Price

price of product)

Pricing

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Page 12 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

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Warranty

Model

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FC #

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Description

Unit Price

price of product)

Pricing

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SW7420

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Page 13 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

NUMA-Q PN

Description

Unit Price

price of product)

Pricing

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Page 14 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

NUMA-Q PN

Description

Unit Price

price of product)

Pricing

DIRECTOR PRODUCTS AND SOFTWARE

SW12000

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Page 15 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

NUMA-Q PN

Description

Unit Price

price of product)

Pricing

DIRECTOR PRODUCTS AND SOFTWARE

SW12000

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Page 16 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

NUMA-Q PN

Description

Unit Price

price of product)

Pricing

DIRECTOR PRODUCTS AND SOFTWARE

SW12000

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Page 17 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

NUMA-Q PN

Description

Unit Price

price of product)

Pricing

SW24000

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

Page 18 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

NUMA-Q PN

Description

Unit Price

price of product)

Pricing

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

Page 19 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

NUMA-Q PN

Description

Unit Price

price of product)

Pricing

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BROCADE DCX (DATA CENTER BACKBONE)

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

Page 20 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

NUMA-Q PN

Description

Unit Price

price of product)

Pricing

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Page 21 of 28

**13 months

Buyer Part Number

Software

Supplier Part Number

IBM

Maintenance

Out of

Brocade

Model or

IBM PN /

(included in unit

Warranty

Model

Brocade P/N

FC #

NUMA-Q PN

Description

Unit Price

price of product)

Pricing

[**]

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FABRIC MANAGER

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Supplier Part Number				Buyer Part Number
Brocade				IBM		IBM PN /
Model		Brocade P/N		Model or FC #		NUMA-Q PN		Description		Out of Warranty
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[**] Certain information on this page has been omitted and filed separately with the Securities and Exhange Commission. Confidential treatment has been requested with respect to the omitted portions.

Page 22 of 28

Supplier Part Number				Buyer Part Number
				IBM
Brocade				Model or FC		IBM PN /
Model		Brocade P/N		#		NUMA-Q PN		Description		Out of Warranty
		[**]						[**]		[**]
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		[**]						[**]		[**]
		[**]						[**]		[**]

** For purpose of calculating the fees for the annual Software Maintenance Support Program as described in Section 9.4, the annual Software Maintenance Fee per Unit for each part number where it is applicable as follows:

Supplier Part Number				Buyer Part Number
				IBM		IBM PN /
Brocade				Model or		NUMA-Q				Annual Software
Model		Brocade P/N		FC #		PN		Product Description		Maintenance Fee per Unit
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[**] Certain information on this page has been omitted and filed separately with the Securities and Exhange Commission. Confidential treatment has been requested with respect to the omitted portions.

Page 23 of 28

Supplier Part Number				Buyer Part Number
				IBM		IBM PN /
Brocade				Model or		NUMA-Q				Annual Software
Model		Brocade P/N		FC #		PN		Product Description		Maintenance Fee per Unit
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[**] Certain information on this page has been omitted and filed separately with the Securities and Exhange Commission. Confidential treatment has been requested with respect to the omitted portions.

Page 24 of 28

Supplier Part Number				Buyer Part Number
				IBM		IBM PN /
Brocade				Model or		NUMA-Q				Annual Software
Model		Brocade P/N		FC #		PN		Product Description		Maintenance Fee per Unit
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[**] Certain information on this page has been omitted and filed separately with the Securities and Exhange Commission. Confidential treatment has been requested with respect to the omitted portions.

Page 25 of 28

Supplier Part Number				Buyer Part Number
				IBM		IBM PN /
Brocade				Model or		NUMA-Q				Annual Software
Model		Brocade P/N		FC #		PN		Product Description		Maintenance Fee per Unit
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[**] Certain information on this page has been omitted and filed separately with the Securities and Exhange Commission. Confidential treatment has been requested with respect to the omitted portions.

Page 26 of 28

Supplier Part Number				Buyer Part Number
				IBM		IBM PN /
Brocade				Model or		NUMA-Q				Annual Software
Model		Brocade P/N		FC #		PN		Product Description		Maintenance Fee per Unit
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[**] Certain information on this page has been omitted and filed separately with the Securities and Exhange Commission. Confidential treatment has been requested with respect to the omitted portions.

Page 27 of 28

Supplier Part Number				Buyer Part Number
				IBM		IBM PN /
Brocade				Model or		NUMA-Q				Annual Software
Model		Brocade P/N		FC #		PN		Product Description		Maintenance Fee per Unit
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[**] Certain information on this page has been omitted and filed separately with the Securities and Exhange Commission. Confidential treatment has been requested with respect to the omitted portions.

Page 28 of 28