SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of
the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 2, 2005

BROCADE COMMUNICATIONS SYSTEMS, INC.

(Exact name of Registrant as specified in its charter)

Delaware
(State or other jurisdiction of
incorporation or organization) 000-25601
(Commission File Number) 77-0409517
(I.R.S. Employer
Identification Number)

1745 Technology Drive
San Jose, CA 95110

(Address, including zip code, of principal executive offices)

(408) 333-8000

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

TABLE OF CONTENTS

	Item 2.02 Results of Operations and Financial Condition.
	Item 9.01 Financial Statements and Exhibits.
EXHIBIT INDEX
EXHIBIT 99.1

Item 2.02 Results of Operations and Financial Condition.

     On August 2, 2005, Brocade Communications Systems, Inc. issued a press release announcing its preliminary financial results for the third fiscal quarter ended on July 30, 2005. A copy of the press release is attached as Exhibit 99.1, and the information in Exhibit 99.1 is incorporated herein by reference.

     The information in Item 2.02 and Item 9.01 in this Current Report on Form 8-K and the exhibit attached hereto shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended.

     The attached press release provides sell through information which includes sell through associated with OEM activity. Sell through provides a measure of OEM and channel partner sales to end-users. The Company does not record revenue based upon OEM sell through information and this measure is not intended to be viewed as a substitute for reported revenue.

Item 9.01 Financial Statements and Exhibits.

(c)	Exhibits
99.1	Press release, dated August 2, 2005, announcing preliminary financial results of Brocade Communications Systems, Inc. for the third fiscal quarter ended on July 30, 2005.

     Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	BROCADE COMMUNICATIONS SYSTEMS, INC.
Dated: August 2, 2005	By:	/s/ Michael Klayko
		Michael Klayko
		Chief Executive Officer

EXHIBIT INDEX

Exhibit Number	Description
99.1	Press release, dated August 2, 2005, announcing preliminary financial results of Brocade Communications Systems, Inc. for the third fiscal quarter ended on July 30, 2005.