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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="right" style="font-size: 10pt; margin-top: 12pt">As filed with the Securities and Exchange Commission on December&nbsp;15, 2008<BR>
Registration No.&nbsp;333-<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U>
</DIV>


<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>




<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549<BR>
<DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM S-8</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>REGISTRATION STATEMENT<BR>
<i>Under<BR>
The Securities Act of 1933</i><BR>
<DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></B>
</DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>Brocade Communications Systems, Inc.</B>
</DIV>

<DIV align="center" style="font-size: 10pt"><B>(Exact name of Registrant as specified in its charter)</B>
<DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
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<TR valign="bottom">
    <TD align="center" valign="top"><B>Delaware</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>77-0409517</B></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><B>(State or other jurisdiction of</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>(I.R.S. Employer</B></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><B>incorporation or organization)</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>Identification Number)</B></TD>
</TR>
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</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>1745 Technology Drive<BR>
San Jose, California 95110<BR>
(Address, including zip code of Registrant&#146;s principal executive offices)</B><BR>
<DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Amended and Restated 1999 Stock Plan<BR>
Amended and Restated 1999 Employee Stock Purchase Plan</B></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>(Full title of the plan)</B><BR>
<DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Tyler Wall, Esq.<BR>
Vice President, General Counsel and Secretary<BR>
Brocade Communications Systems, Inc.<BR>
1745 Technology Drive<BR>
San Jose, California 95110<BR>
(408)&nbsp;333-8000<BR>
(Name, address, and telephone number, including area code, of agent for service)</B><BR>
<DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><I>Copy to:</I><BR>
<B>Katharine A. Martin, Esq.<BR>
Wilson, Sonsini, Goodrich &#038; Rosati<BR>
Professional Corporation<BR>
650 Page Mill Road<BR>
Palo Alto, CA 94304<BR>
(650)&nbsp;493-9300</B></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>

 <DIV align="left" style="font-size: 10pt; margin-top: 6pt">Indicate by check mark whether
the registrant is a large accelerated filer, an accelerated filer,
a non-accelerated filer, or a smaller reporting company.
See the definitions of &#147;large accelerated filer,&#148;
&#147;accelerated filer&#148; and &#147;smaller reporting company&#148;
in Rule 12b-2 of the Exchange Act. (Check one):</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="22%"></TD>
    <TD width="3%"></TD>
    <TD width="22%"></TD>
    <TD width="3%"></TD>
    <TD width="22%"></TD>
    <TD width="3%"></TD>
    <TD width="22%"></TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="left" valign="top" nowrap><FONT face="Wingdings">&#254;</FONT> Large accelerated filer
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" nowrap><FONT face="Wingdings">&#111;</FONT> Accelerated filer
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" nowrap><FONT face="Wingdings">&#111;</FONT> Non-accelerated filer
</TD>
    <TD>&nbsp;</TD>
    <TD align="right" valign="top" nowrap><FONT face="Wingdings">&#111;</FONT> Smaller reporting company</TD>
</TR>
<TR valign="bottom">
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD align="center" valign="top" colspan="3" nowrap>(Do not check if a smaller reporting company)</TD>

    <TD align="right" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">CALCULATION OF REGISTRATION FEE
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom" style="font-size: 1px">
    <TD width="1%">&nbsp;</TD>
    <TD width="51%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="11%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="4%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="14%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="10%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="15" style="border-bottom: 3px double #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Proposed</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Proposed</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Amount</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Offering</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Aggregate</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Amount of</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>Title of Securities to </B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>to be</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Price</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Offering</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Registration</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>be Registered</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Registered(1)</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Per Share (2)</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Price (2)</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Fee (2)</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
                    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Stock $0.001 par value per share,
to be issued under the Brocade
Communications Systems, Inc.
Amended and Restated 1999 Stock Plan</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">37,960,185</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">$3.18</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">$120,713,389</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>

<TD align="center" valign="bottom" style="border-top: 2px solid #000000">$4,744.04</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Stock $0.001 par value per share,
to be issued under the Brocade
Communications Systems, Inc.
Amended and Restated 1999 Employee
Stock Purchase Plan</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">18,980,092</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">$3.18</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">$60,356,693</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">$2,372.02</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Total</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">56,940,277</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">&#151;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">$181,070,082</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">$7,116.06</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="15" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 3pt; width: 18%; border-top: 0px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Plus such indeterminable number of additional shares as may be issued as a result of
an adjustment in the shares in the event of a stock split, stock dividend or similar capital
adjustment, as required by the Amended and Restated 1999 Employee Stock Purchase Plan and Amended
and Restated 1999 Stock Plan.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(2)</TD>
    <TD>&nbsp;</TD>
    <TD>Estimated in accordance with Rule 457(c) and 457(h) solely for the purpose of
calculating the filing fee on the basis of $3.18 per share, which represents the average of the
high and low prices of the Common Stock as reported on the NASDAQ Global Select Market on December
8, 2008.</TD>
</TR>

</TABLE>



<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>





<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">








<!-- TOC -->
<A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

<P><CENTER>
<TABLE border="0" width="90%" cellpadding="0" cellspacing="0">
<TR>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
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	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="76%"></TD>
</TR>
<TR><TD colspan="9"><A HREF="#000">PART II</A></TD></TR>
<TR><TD colspan="9"><A HREF="#001">Item&nbsp;3. Incorporation of Documents by Reference</A></TD></TR>
<TR><TD colspan="9"><A HREF="#002">Item&nbsp;4. Description of Securities</A></TD></TR>
<TR><TD colspan="9"><A HREF="#003">Item&nbsp;5. Interests of Named Experts and Counsel</A></TD></TR>
<TR><TD colspan="9"><A HREF="#004">Item&nbsp;6. Indemnification of Directors and Officers</A></TD></TR>
<TR><TD colspan="9"><A HREF="#005">Item&nbsp;7. Exemption from Registration Claimed</A></TD></TR>
<TR><TD colspan="9"><A HREF="#006">Item&nbsp;8. Exhibits</A></TD></TR>
<TR><TD colspan="9"><A HREF="#007">Item&nbsp;9. Undertakings</A></TD></TR>
<TR><TD colspan="9"><A HREF="#008">SIGNATURES</A></TD></TR>
<TR><TD colspan="9"><A HREF="#009">EXHIBIT INDEX</A></TD></TR>
<TR><TD colspan="9"><A HREF="f50859exv5w1.htm">EX-5.1</A></TD></TR>
<TR><TD colspan="9"><A HREF="f50859exv23w1.htm">EX-23.1</A></TD></TR>
</TABLE>
</CENTER>
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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>




<!-- link1 "PART II" -->
<DIV align="left"><A NAME="000"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART II</B>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B>
</DIV>

<!-- link1 "Item&nbsp;3. Incorporation of Documents by Reference" -->
<DIV align="left"><A NAME="001"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;3. Incorporation of Documents by Reference.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following documents have been filed by the Registrant with the Securities and Exchange
Commission (the &#147;Commission&#148;) and are incorporated herein by reference:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;The Registrant&#146;s Annual Report on Form 10-K for the fiscal year ended October&nbsp;25, 2008
filed with the Commission on December&nbsp;15, 2008;
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;The Registrant&#146;s Current Report on Form 8-K filed with the Commission on November&nbsp;12, 2008
(except Item&nbsp;2.02 and Item&nbsp;9.01 as it relates to Item&nbsp;2.02); and
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;The description of the Registrant&#146;s Common Stock contained in the Registrant&#146;s
Registration Statement on Form 8-A dated March&nbsp;19, 1999, and any further amendment or report filed
hereafter for the purpose of updating such description; and
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All documents subsequently filed by the Registrant pursuant to Sections&nbsp;13(a), 13(c), 14 and
15(d) of the Securities Exchange Act of 1934 (the &#147;Exchange Act&#148;), prior to the filing of a
post-effective amendment to the registration statement which indicates that all of the shares of
Common Stock offered have been sold or which deregisters all of such shares then remaining unsold,
shall be deemed to be incorporated by reference in this registration statement and to be a part
hereof from the date of the filing of such documents.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For purposes of this registration statement, any statement contained in a document
incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or
superseded to the extent that a statement contained herein or in any other subsequently filed
document which also is or is deemed to be incorporated by reference herein modifies or supersedes
such statement. Any such statement so modified or superseded shall not be deemed, except as so
modified or superseded, to constitute a part of this registration statement.
</DIV>

<!-- link1 "Item&nbsp;4. Description of Securities" -->
<DIV align="left"><A NAME="002"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;4. Description of Securities</B>.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>

<!-- link1 "Item&nbsp;5. Interests of Named Experts and Counsel" -->
<DIV align="left"><A NAME="003"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;5. Interests of Named Experts and Counsel.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">



<!-- link1 "Item&nbsp;6. Indemnification of Directors and Officers" -->
<DIV align="left"><A NAME="004"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;6. Indemnification of Directors and Officers.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;145(a) of the Delaware General Corporation Law (the &#147;DGCL&#148;) provides in relevant
part that &#147;&#091;a&#093; corporation shall have power to indemnify any person who was or is a party or is
threatened to be made a party to any threatened, pending or completed action, suit or proceeding,
whether civil, criminal, administrative or investigative (other than an action by or in the right
of the corporation) by reason of the fact that the person is or was a director, officer, employee
or agent of the corporation, or is or was serving at the request of the corporation as a director,
officer, employee or agent of another corporation, partnership, joint venture, trust or other
enterprise, against expenses (including attorneys&#146; fees), judgments, fines and amounts paid in
settlement actually and reasonably incurred by the person in connection with such action, suit or
proceeding if the person acted in good faith and in a manner the person reasonably believed to be
in or not opposed to the best interests of the corporation, and, with respect to any criminal
action or proceeding, had no reasonable cause to believe the person&#146;s conduct was unlawful.&#148; With
respect to derivative actions, Section 145(b) of the DGCL provides in relevant part that &#147;&#091;a&#093;
corporation shall have power to indemnify any person who was or is a party or is threatened to be
made a party to any threatened, pending or completed action or suit by or in the right of the
corporation to procure a judgment in its favor...&#091;by reason of the person&#146;s service in one of the
capacities specified in the preceding sentence&#093; against expenses (including attorneys&#146; fees)
actually and reasonably incurred by the person in connection with the defense or settlement of such
action or suit if the person acted in good faith and in a manner the person reasonably believed to
be in or not opposed to the best interests of the corporation and except that no indemnification
shall be made in respect of any claim, issue or matter as to which such person shall have been
adjudged to be liable to the corporation unless and only to the extent that the Court of Chancery
or the court in which such action or suit was brought shall determine upon application that,
despite the adjudication of liability but in view of all the circumstances of the case, such person
is fairly and reasonably entitled to indemnity for such expenses which the Court of Chancery or
such other court shall deem proper.&#148;
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant&#146;s Amended and Restated Certificate of Incorporation provides that
 the Registrant shall indemnify to the fullest extent permitted by law any person made or
threatened to be made a party to an action or proceeding, whether criminal, civil, administrative
or investigative, by reason of the fact that he, his testator or intestate is or was a director,
officer or employee of the Registrant or any predecessor of the Registrant or serves or served at
any other enterprise as a director, officer, or employee at the request of the Registrant or any
predecessor to the Registrant. The Amended and Restated Certificate of Incorporation also provides
that no amendment or repeal of any provision of Article XI of the
Amended and Restated Certificate of Incorporation shall apply to or have any effect on the right to
indemnification permitted thereunder with respect to claims arising from acts or omissions
occurring in whole or in part before the effective date of such amendment or repeal whether
asserted before or after such amendment or repeal.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant&#146;s bylaws provide for the indemnification of officers, directors and third
parties acting on behalf of the Registrant if such person acted in good faith and in a manner
reasonably believed to be in and not opposed to the best interest of the Registrant, and, with
respect to any criminal action or proceeding, the indemnified party had no reason to believe his or
her conduct was unlawful. The Registrant has entered into indemnification agreements with its
directors and executive officers and intends to enter into indemnification agreements with any new
directors and executive officers in the future.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant carries officer and director liability insurance with respect to certain
matters, including matters arising under the Securities Act.
</DIV>
<!-- link1 "Item&nbsp;7. Exemption from Registration Claimed" -->
<DIV align="left"><A NAME="005"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;7. Exemption from Registration Claimed.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable.
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">



<!-- link1 "Item&nbsp;8. Exhibits" -->
<DIV align="left"><A NAME="006"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;8. Exhibits.</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="6%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="92%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;&nbsp;5.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of Wilson Sonsini Goodrich &#038; Rosati, Professional Corporation.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.1 (1)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated 1999 Stock Plan.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.2 (2)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated 1999 Employee Stock Purchase Plan.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Independent  Registered Public Accounting Firm.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Wilson Sonsini Goodrich &#038; Rosati, Professional Corporation
(included in Exhibit&nbsp;5.1).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">24.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Power of Attorney (included on the signature page).</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Incorporated by reference to Exhibit&nbsp;10.2 from Brocade&#146;s Quarterly Report on Form 10-Q for the
quarter ended April&nbsp;26, 2008, filed with the Commission on June&nbsp;4, 2008.<BR></TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(2)</TD>
    <TD>&nbsp;</TD>
    <TD>Incorporated by reference to Exhibit&nbsp;10.7 to the Company&#146;s Quarterly Report on Form 10-Q for
the quarter ended July&nbsp;30, 2005, filed with the Commission on November&nbsp;14, 2005.</TD>
</TR>

</TABLE>


<!-- link1 "Item&nbsp;9. Undertakings" -->
<DIV align="left"><A NAME="007"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;9. Undertakings.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;The undersigned Registrant hereby undertakes:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;To file, during any period in which offers or sales are being made, a post-effective
amendment to this registration statement:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)&nbsp;To include any prospectus required by section 10(a)(3) of the Securities Act of 1933 (the
&#147;Securities Act&#148;);
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)&nbsp;To reflect in the prospectus any facts or events arising after the effective date of the
registration statement (or the most recent post-effective amendment thereof) which, individually or
in the aggregate, represent a fundamental change in the information set forth in the registration
statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered
(if the total dollar value of securities offered would not exceed that which was registered) and
any deviation from the low or high end of the estimated maximum offering range may be reflected in
the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the
changes in volume and price represent no more than a 20% change in the maximum aggregate offering
price set forth in the &#147;Calculation of Registration Fee&#148; table in the effective registration
statement;
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii)&nbsp;To include any material information with respect to the plan of distribution not
previously disclosed in the registration statement or any material change to such information in
the registration statement.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information
required to be included in a post-effective amendment by those paragraphs is contained in reports
filed or furnished by the Registrant pursuant to Section&nbsp;13 or Section 15(d) of the Exchange Act
that are incorporated by reference in the registration statement.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;That, for the purpose of determining any liability under the Securities Act, each such
post-effective amendment shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;To remove from registration by means of a post-effective amendment any of the securities
being registered which remain unsold at the termination of the offering.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;The undersigned Registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act, each filing of the Registrant&#146;s annual report pursuant to
Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an
employee benefit plan&#146;s annual report pursuant to Section 15(d) of the Exchange Act) that is
incorporated by reference in the registration statement shall be deemed to be a new registration
statement relating to the securities offered therein, and the offering of such securities at that
time shall be deemed to be the initial bona fide offering thereof.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;Insofar as indemnification for liabilities arising under the Securities Act may be
permitted to directors, officers and controlling persons of the Registrant pursuant to the
foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the
Commission such indemnification is against public policy as expressed in the Act and is, therefore,
unenforceable. In the event that a claim for indemnification against such liabilities (other than
the payment by the Registrant of expenses incurred or paid by a director, officer or controlling
person of the Registrant in the successful defense of any action, suit or proceeding) is asserted
by such director, officer or controlling person in connection with the securities being registered,
the Registrant will, unless in the opinion of its counsel the matter has been settled by
controlling precedent, submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities Act and will be
governed by the final adjudication of such issue.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link1 "SIGNATURES" -->
<DIV align="left"><A NAME="008"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the requirements for
filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by
the undersigned, thereunto duly authorized, in the City of San Jose, State of California on
December&nbsp;11, 2008.
</DIV>


<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">BROCADE COMMUNICATIONS SYSTEMS, INC.<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/Richard Deranleau
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Richard Deranleau&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Chief Financial Officer&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>POWER OF ATTORNEY</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes
and appoints Michael Klayko and Richard Deranleau, and each of them, his or her attorneys-in fact,
each with the power of substitution, for him or her in any and all capacities, to sign any and all
amendments to this registration statement (including post-effective statements), and to sign any
registration statement for the same offering covered by this registration statement that is to be
effective upon filing pursuant to Rule 462(b) promulgated under the Securities Act of 1933, as
amended, and all post-effective amendments thereto, and to file the same, with exhibits thereto and
other documents in connection therewith, with the Securities and Exchange Commission, granting unto
said attorneys-in-fact and agents, and each of them, full power and authority to do and perform
each and every act and thing requisite and necessary to be done in and about the premises, as fully
to all intents and purposes as he or she might or could do in person, hereby ratifying and
confirming all that such attorneys-in-fact, or his or her or their substitute or substitutes, may
lawfully do or cause to be done by virtue hereof. This Power of Attorney may be signed in several
counterparts.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, as amended, this registration
statement has been signed by the following persons in the capacities and on the date indicated.
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="32%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="36%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="28%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Signature</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Title</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Date</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Michael Klayko
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Michael Klayko
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Chief Executive Officer<br>&nbsp;(Principal
Executive Officer and Director)
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">December&nbsp;5, 2008</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Richard Deranleau
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Richard Deranleau
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" nowrap>Chief Financial Officer and Vice President, Finance<br>&nbsp;(Principal
Financial and Accounting Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">December&nbsp;11, 2008</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ David L. House
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
David L. House
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Chairman of the Board of Directors&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">December&nbsp;5, 2008</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Renato A. DiPentima
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ John W. Gerdelman
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
John W. Gerdelman
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">December&nbsp;5, 2008</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Glenn Jones
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Glenn Jones
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">December&nbsp;5, 2008</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ L. William Krause
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
L. William Krause
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">December&nbsp;5, 2008</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Sanjay Vaswani
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Sanjay Vaswani
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">December&nbsp;5, 2008</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- link1 "EXHIBIT INDEX" -->
<DIV align="left"><A NAME="009"></A></DIV>
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>EXHIBIT INDEX</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
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    <TD width="92%">&nbsp;</TD>
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<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Number</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Document Description</B></TD>
</TR>

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    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;&nbsp;5.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of Wilson Sonsini Goodrich &#038; Rosati, Professional Corporation.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.1 (1)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated 1999 Stock Plan.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.2 (2)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated 1999 Employee Stock Purchase Plan.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Independent  Registered Public Accounting Firm.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Wilson Sonsini Goodrich &#038; Rosati, Professional Corporation
(included in Exhibit&nbsp;5.1).</TD>
</TR>
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    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">24.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Power of Attorney (included on the signature page).</TD>
</TR>
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    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Incorporated by reference to Exhibit&nbsp;10.2 from Brocade&#146;s Quarterly Report on Form 10-Q for the
quarter ended April&nbsp;26, 2008, filed with the Commission on June&nbsp;4, 2008.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(2)</TD>
    <TD>&nbsp;</TD>
    <TD>Incorporated by reference to Exhibit&nbsp;10.7 to the Company&#146;s Quarterly Report on Form 10-Q for
the quarter ended July&nbsp;30, 2005, filed with the Commission on November&nbsp;14, 2005.</TD>
</TR>

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sv8
Table of Contents
As filed with the Securities and Exchange Commission on December 15, 2008
Registration No. 333-
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
Under
The Securities Act of 1933
Brocade Communications Systems, Inc.
(Exact name of Registrant as specified in its charter)
Delaware
77-0409517
(State or other jurisdiction of
(I.R.S. Employer
incorporation or organization)
Identification Number)
1745 Technology Drive
San Jose, California 95110
(Address, including zip code of Registrant's principal executive offices)
Amended and Restated 1999 Stock Plan
Amended and Restated 1999 Employee Stock Purchase Plan
(Full title of the plan)
Tyler Wall, Esq.
Vice President, General Counsel and Secretary
Brocade Communications Systems, Inc.
1745 Technology Drive
San Jose, California 95110
(408) 333-8000
(Name, address, and telephone number, including area code, of agent for service)
Copy to:
Katharine A. Martin, Esq.
Wilson, Sonsini, Goodrich & Rosati
Professional Corporation
650 Page Mill Road
Palo Alto, CA 94304
(650) 493-9300
Indicate by check mark whether
the registrant is a large accelerated filer, an accelerated filer,
a non-accelerated filer, or a smaller reporting company.
See the definitions of "large accelerated filer,"
"accelerated filer" and "smaller reporting company"
in Rule 12b-2 of the Exchange Act. (Check one):
þ
Large accelerated filer
o
Accelerated filer
o
Non-accelerated filer
o
Smaller reporting company
(Do not check if a smaller reporting company)
CALCULATION OF REGISTRATION FEE
Proposed
Proposed
Maximum
Maximum
Amount
Offering
Aggregate
Amount of
Title of Securities to
to be
Price
Offering
Registration
be Registered
Registered(1)
Per Share (2)
Price (2)
Fee (2)
Common Stock $0.001 par value per share,
to be issued under the Brocade
Communications Systems, Inc.
Amended and Restated 1999 Stock Plan
37,960,185
$3.18
$120,713,389
$4,744.04
Common Stock $0.001 par value per share,
to be issued under the Brocade
Communications Systems, Inc.
Amended and Restated 1999 Employee
Stock Purchase Plan
18,980,092
$3.18
$60,356,693
$2,372.02
Total
56,940,277
—
$181,070,082
$7,116.06
(1)
Plus such indeterminable number of additional shares as may be issued as a result of
an adjustment in the shares in the event of a stock split, stock dividend or similar capital
adjustment, as required by the Amended and Restated 1999 Employee Stock Purchase Plan and Amended
and Restated 1999 Stock Plan.
(2)
Estimated in accordance with Rule 457(c) and 457(h) solely for the purpose of
calculating the filing fee on the basis of $3.18 per share, which represents the average of the
high and low prices of the Common Stock as reported on the NASDAQ Global Select Market on December
8, 2008.
TABLE OF CONTENTS
PART II
Item 3. Incorporation of Documents by Reference
Item 4. Description of Securities
Item 5. Interests of Named Experts and Counsel
Item 6. Indemnification of Directors and Officers
Item 7. Exemption from Registration Claimed
Item 8. Exhibits
Item 9. Undertakings
SIGNATURES
EXHIBIT INDEX
EX-5.1
EX-23.1
Table of Contents
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3. Incorporation of Documents by Reference.
The following documents have been filed by the Registrant with the Securities and Exchange
Commission (the "Commission") and are incorporated herein by reference:
(a) The Registrant's Annual Report on Form 10-K for the fiscal year ended October 25, 2008
filed with the Commission on December 15, 2008;
(b) The Registrant's Current Report on Form 8-K filed with the Commission on November 12, 2008
(except Item 2.02 and Item 9.01 as it relates to Item 2.02); and
(c) The description of the Registrant's Common Stock contained in the Registrant's
Registration Statement on Form 8-A dated March 19, 1999, and any further amendment or report filed
hereafter for the purpose of updating such description; and
All documents subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and
15(d) of the Securities Exchange Act of 1934 (the "Exchange Act"), prior to the filing of a
post-effective amendment to the registration statement which indicates that all of the shares of
Common Stock offered have been sold or which deregisters all of such shares then remaining unsold,
shall be deemed to be incorporated by reference in this registration statement and to be a part
hereof from the date of the filing of such documents.
For purposes of this registration statement, any statement contained in a document
incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or
superseded to the extent that a statement contained herein or in any other subsequently filed
document which also is or is deemed to be incorporated by reference herein modifies or supersedes
such statement. Any such statement so modified or superseded shall not be deemed, except as so
modified or superseded, to constitute a part of this registration statement.
Item 4. Description of Securities
.
Not applicable.
Item 5. Interests of Named Experts and Counsel.
Not applicable.
Table of Contents
Item 6. Indemnification of Directors and Officers.
Section 145(a) of the Delaware General Corporation Law (the "DGCL") provides in relevant
part that "[a] corporation shall have power to indemnify any person who was or is a party or is
threatened to be made a party to any threatened, pending or completed action, suit or proceeding,
whether civil, criminal, administrative or investigative (other than an action by or in the right
of the corporation) by reason of the fact that the person is or was a director, officer, employee
or agent of the corporation, or is or was serving at the request of the corporation as a director,
officer, employee or agent of another corporation, partnership, joint venture, trust or other
enterprise, against expenses (including attorneys' fees), judgments, fines and amounts paid in
settlement actually and reasonably incurred by the person in connection with such action, suit or
proceeding if the person acted in good faith and in a manner the person reasonably believed to be
in or not opposed to the best interests of the corporation, and, with respect to any criminal
action or proceeding, had no reasonable cause to believe the person's conduct was unlawful." With
respect to derivative actions, Section 145(b) of the DGCL provides in relevant part that "[a]
corporation shall have power to indemnify any person who was or is a party or is threatened to be
made a party to any threatened, pending or completed action or suit by or in the right of the
corporation to procure a judgment in its favor...[by reason of the person's service in one of the
capacities specified in the preceding sentence] against expenses (including attorneys' fees)
actually and reasonably incurred by the person in connection with the defense or settlement of such
action or suit if the person acted in good faith and in a manner the person reasonably believed to
be in or not opposed to the best interests of the corporation and except that no indemnification
shall be made in respect of any claim, issue or matter as to which such person shall have been
adjudged to be liable to the corporation unless and only to the extent that the Court of Chancery
or the court in which such action or suit was brought shall determine upon application that,
despite the adjudication of liability but in view of all the circumstances of the case, such person
is fairly and reasonably entitled to indemnity for such expenses which the Court of Chancery or
such other court shall deem proper."
The Registrant's Amended and Restated Certificate of Incorporation provides that
 the Registrant shall indemnify to the fullest extent permitted by law any person made or
threatened to be made a party to an action or proceeding, whether criminal, civil, administrative
or investigative, by reason of the fact that he, his testator or intestate is or was a director,
officer or employee of the Registrant or any predecessor of the Registrant or serves or served at
any other enterprise as a director, officer, or employee at the request of the Registrant or any
predecessor to the Registrant. The Amended and Restated Certificate of Incorporation also provides
that no amendment or repeal of any provision of Article XI of the
Amended and Restated Certificate of Incorporation shall apply to or have any effect on the right to
indemnification permitted thereunder with respect to claims arising from acts or omissions
occurring in whole or in part before the effective date of such amendment or repeal whether
asserted before or after such amendment or repeal.
The Registrant's bylaws provide for the indemnification of officers, directors and third
parties acting on behalf of the Registrant if such person acted in good faith and in a manner
reasonably believed to be in and not opposed to the best interest of the Registrant, and, with
respect to any criminal action or proceeding, the indemnified party had no reason to believe his or
her conduct was unlawful. The Registrant has entered into indemnification agreements with its
directors and executive officers and intends to enter into indemnification agreements with any new
directors and executive officers in the future.
The Registrant carries officer and director liability insurance with respect to certain
matters, including matters arising under the Securities Act.
Item 7. Exemption from Registration Claimed.
Not Applicable.
Table of Contents
Item 8. Exhibits.
5.1
Opinion of Wilson Sonsini Goodrich & Rosati, Professional Corporation.
10.1 (1)
Amended and Restated 1999 Stock Plan.
10.2 (2)
Amended and Restated 1999 Employee Stock Purchase Plan.
23.1
Consent of Independent  Registered Public Accounting Firm.
23.2
Consent of Wilson Sonsini Goodrich & Rosati, Professional Corporation
(included in Exhibit 5.1).
24.1
Power of Attorney (included on the signature page).
(1)
Incorporated by reference to Exhibit 10.2 from Brocade's Quarterly Report on Form 10-Q for the
quarter ended April 26, 2008, filed with the Commission on June 4, 2008.
(2)
Incorporated by reference to Exhibit 10.7 to the Company's Quarterly Report on Form 10-Q for
the quarter ended July 30, 2005, filed with the Commission on November 14, 2005.
Item 9. Undertakings.
(a) The undersigned Registrant hereby undertakes:
(1) To file, during any period in which offers or sales are being made, a post-effective
amendment to this registration statement:
(i) To include any prospectus required by section 10(a)(3) of the Securities Act of 1933 (the
"Securities Act");
(ii) To reflect in the prospectus any facts or events arising after the effective date of the
registration statement (or the most recent post-effective amendment thereof) which, individually or
in the aggregate, represent a fundamental change in the information set forth in the registration
statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered
(if the total dollar value of securities offered would not exceed that which was registered) and
any deviation from the low or high end of the estimated maximum offering range may be reflected in
the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the
changes in volume and price represent no more than a 20% change in the maximum aggregate offering
price set forth in the "Calculation of Registration Fee" table in the effective registration
statement;
(iii) To include any material information with respect to the plan of distribution not
previously disclosed in the registration statement or any material change to such information in
the registration statement.
Provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information
required to be included in a post-effective amendment by those paragraphs is contained in reports
filed or furnished by the Registrant pursuant to Section 13 or Section 15(d) of the Exchange Act
that are incorporated by reference in the registration statement.
Table of Contents
(2) That, for the purpose of determining any liability under the Securities Act, each such
post-effective amendment shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.
(3) To remove from registration by means of a post-effective amendment any of the securities
being registered which remain unsold at the termination of the offering.
(b) The undersigned Registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act, each filing of the Registrant's annual report pursuant to
Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that is
incorporated by reference in the registration statement shall be deemed to be a new registration
statement relating to the securities offered therein, and the offering of such securities at that
time shall be deemed to be the initial bona fide offering thereof.
(c) Insofar as indemnification for liabilities arising under the Securities Act may be
permitted to directors, officers and controlling persons of the Registrant pursuant to the
foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the
Commission such indemnification is against public policy as expressed in the Act and is, therefore,
unenforceable. In the event that a claim for indemnification against such liabilities (other than
the payment by the Registrant of expenses incurred or paid by a director, officer or controlling
person of the Registrant in the successful defense of any action, suit or proceeding) is asserted
by such director, officer or controlling person in connection with the securities being registered,
the Registrant will, unless in the opinion of its counsel the matter has been settled by
controlling precedent, submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities Act and will be
governed by the final adjudication of such issue.
Table of Contents
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the requirements for
filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by
the undersigned, thereunto duly authorized, in the City of San Jose, State of California on
December 11, 2008.
BROCADE COMMUNICATIONS SYSTEMS, INC.
By:
/s/Richard Deranleau
Richard Deranleau
Chief Financial Officer
POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes
and appoints Michael Klayko and Richard Deranleau, and each of them, his or her attorneys-in fact,
each with the power of substitution, for him or her in any and all capacities, to sign any and all
amendments to this registration statement (including post-effective statements), and to sign any
registration statement for the same offering covered by this registration statement that is to be
effective upon filing pursuant to Rule 462(b) promulgated under the Securities Act of 1933, as
amended, and all post-effective amendments thereto, and to file the same, with exhibits thereto and
other documents in connection therewith, with the Securities and Exchange Commission, granting unto
said attorneys-in-fact and agents, and each of them, full power and authority to do and perform
each and every act and thing requisite and necessary to be done in and about the premises, as fully
to all intents and purposes as he or she might or could do in person, hereby ratifying and
confirming all that such attorneys-in-fact, or his or her or their substitute or substitutes, may
lawfully do or cause to be done by virtue hereof. This Power of Attorney may be signed in several
counterparts.
Pursuant to the requirements of the Securities Act of 1933, as amended, this registration
statement has been signed by the following persons in the capacities and on the date indicated.
Signature
Title
Date
/s/ Michael Klayko
Michael Klayko
Chief Executive Officer
(Principal
Executive Officer and Director)
December 5, 2008
/s/ Richard Deranleau
Richard Deranleau
Chief Financial Officer and Vice President, Finance
(Principal
Financial and Accounting Officer)
December 11, 2008
/s/ David L. House
David L. House
Chairman of the Board of Directors
December 5, 2008
Director
Renato A. DiPentima
/s/ John W. Gerdelman
John W. Gerdelman
Director
December 5, 2008
/s/ Glenn Jones
Glenn Jones
Director
December 5, 2008
/s/ L. William Krause
L. William Krause
Director
December 5, 2008
/s/ Sanjay Vaswani
Sanjay Vaswani
Director
December 5, 2008
Table of Contents
EXHIBIT INDEX
Exhibit
Number
Document Description
5.1
Opinion of Wilson Sonsini Goodrich & Rosati, Professional Corporation.
10.1 (1)
Amended and Restated 1999 Stock Plan.
10.2 (2)
Amended and Restated 1999 Employee Stock Purchase Plan.
23.1
Consent of Independent  Registered Public Accounting Firm.
23.2
Consent of Wilson Sonsini Goodrich & Rosati, Professional Corporation
(included in Exhibit 5.1).
24.1
Power of Attorney (included on the signature page).
(1)
Incorporated by reference to Exhibit 10.2 from Brocade's Quarterly Report on Form 10-Q for the
quarter ended April 26, 2008, filed with the Commission on June 4, 2008.
(2)
Incorporated by reference to Exhibit 10.7 to the Company's Quarterly Report on Form 10-Q for
the quarter ended July 30, 2005, filed with the Commission on November 14, 2005.