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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 B5AbfqrqQR2Qoaol6X2rBZW4//jZQBkkEQxfhnnSliBVwqVFrYQpBmHUNJt4MdHP
 7qDHDJfVwOec+gxVVuBLDA==

<SEC-DOCUMENT>0001209191-03-011659.txt : 20030711
<SEC-HEADER>0001209191-03-011659.hdr.sgml : 20030711
<ACCEPTANCE-DATETIME>20030711132256
ACCESSION NUMBER:		0001209191-03-011659
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030710
FILED AS OF DATE:		20030711

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			REYES GREG
		CENTRAL INDEX KEY:			0001191071

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-25601
		FILM NUMBER:		03783360

	MAIL ADDRESS:	
		STREET 1:		1745 TECHNOLOGY DRIVE
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95110

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BROCADE COMMUNICATIONS SYSTEMS INC
		CENTRAL INDEX KEY:			0001009626
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER COMMUNICATIONS EQUIPMENT [3576]
		IRS NUMBER:				770409517
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1028

	BUSINESS ADDRESS:	
		STREET 1:		1745 TECHNOLOGY DRIVE
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95110

	MAIL ADDRESS:	
		STREET 1:		1745 TECHNOLOGY DRIVE
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95110
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>bpa91420_bpa1gr.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0101</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-07-10</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0001009626</issuerCik><issuerName>BROCADE COMMUNICATIONS SYSTEMS INC</issuerName>        <issuerTradingSymbol>BRCD</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001191071</rptOwnerCik><rptOwnerName>REYES GREG</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>  </rptOwnerStreet1><rptOwnerStreet2>  </rptOwnerStreet2><rptOwnerCity>  </rptOwnerCity><rptOwnerState>  </rptOwnerState><rptOwnerZipCode>  </rptOwnerZipCode></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Chairman and CEO</officerTitle></reportingOwnerRelationship></reportingOwner><derivativeSecurity><securityTitle><value>Non-qualified stock option (right to
 buy)</value></securityTitle><conversionOrExercisePrice><value>6.54</value></conversionOrExercisePrice><transactionDate><value>2003-07-10</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>100000</value></transactionShares><transactionValue><value>0.00</value><footnoteId id="F1" /></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2003-07-10</value><footnoteId id="F1" /></exerciseDate><expirationDate><value>2013-07-10</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>100000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>100000</value></sharesOwnedFollowingTransactio
n></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeSecurity><derivativeSecurity><securityTitle><value>Non-qualified stock option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>6.54</value></conversionOrExercisePrice><transactionDate><value>2003-07-10</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>480000</value></transactionShares><transactionValue><value>0.00</value><footnoteId id="F2" /></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2003-07-10</value><footnoteId id="F2" /></exerciseDate><expirationDate><value>2013-07-10</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value
></underlyingSecurityTitle><underlyingSecurityShares><value>480000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>480000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeSecurity><derivativeSecurity><securityTitle><value>Non-qualified stock option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>6.54</value></conversionOrExercisePrice><transactionDate><value>2003-07-10</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>16144</value></transactionShares><transactionValue><value>0.00</value><footnoteId id="F3" /></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposed
Code></transactionAmounts><exerciseDate><value>2003-07-10</value><footnoteId id="F3" /></exerciseDate><expirationDate><value>2013-07-10</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>16144</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>16144</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeSecurity><derivativeSecurity><securityTitle><value>Non-qualified stock option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>6.54</value></conversionOrExercisePrice><transactionDate><value>2003-07-10</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><trans
actionAmounts><transactionShares><value>380858</value></transactionShares><transactionValue><value>0.00</value><footnoteId id="F4" /></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2003-07-10</value><footnoteId id="F4" /></exerciseDate><expirationDate><value>2013-07-10</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>380858</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>380858</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeSecurity><derivativeSecurity><securityTitle><value>Non-qualified stock option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>6.54</value></conversionOrExerciseP
rice><transactionDate><value>2003-07-10</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>1212</value></transactionShares><transactionValue><value>0.00</value><footnoteId id="F5" /></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2003-07-10</value><footnoteId id="F5" /></exerciseDate><expirationDate><value>2013-07-10</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>1212</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>1212</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirec
tOwnership></ownershipNature></derivativeSecurity><derivativeSecurity><securityTitle><value>Non-qualified stock option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>6.54</value></conversionOrExercisePrice><transactionDate><value>2003-07-10</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>125000</value></transactionShares><transactionValue><value>0.00</value><footnoteId id="F6" /></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2003-07-10</value><footnoteId id="F6" /></exerciseDate><expirationDate><value>2013-07-10</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>125000</value></underlyingSecurityShares></u
nderlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>125000</value><footnoteId id="F7" /></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeSecurity><footnotes><footnote id="F1">Options granted in accordance with a voluntary stock option exchange program offered to all employees. 66,666 options vest on July 10, 2003; 33,334 options vest monthly from August 1, 2003 through November 1, 2003.</footnote><footnote id="F2">Options granted in accordance with a voluntary stock option exchange program offered to all employees. 26,666 options vest on July 10, 2003; 133,334 options vest monthly from August 1, 2003 through November 1, 2006; 320,000 options vest monthly from November 1, 2005 through November 1, 2006.</footnote><footnote id="F3">Options granted in accordance with a voluntary stock option exchange program offered to all employees. 10,969 options vest on 
July 10, 2003; 5,175 options vest monthly from August 1, 2003 through November 1, 2003.</footnote><footnote id="F4">Options granted in accordance with a voluntary stock option exchange program offered to all employees. 21,158 options vest on July 10, 2003; 105,794 options vest monthly from August 1, 2003 through November 1, 2006; 253,906 options vest monthly from November 1, 2005 through November 1, 2006.</footnote><footnote id="F5">Options granted in accordance with a voluntary stock option exchange program offered to all employees. 1,212 options vest on July 10, 2003.</footnote><footnote id="F6">Options granted in accordance with a voluntary stock option exchange program offered to all employees. 54,687 options vest on July 10, 2003; 70,313 options vest monthly from August 1, 2003 through October 1, 2005.</footnote><footnote id="F7">Reporting Person also beneficially holds the following non-derivative securities:  4,052,879 shares held by the Reyes Family Trust DTD 4/30/95, over which the Reporting Person 
and his spouse exercise investment and voting control;  1,000,000 shares held by the Reyes Family Foundation.</footnote></footnotes><ownerSignature><signatureName>/s/ Gregory L. Reyes</signatureName><signatureDate>2003-07-11</signatureDate></ownerSignature></ownershipDocument>

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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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