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    <title>FlexAttach Virtual pWWN CFS Distribution </title>
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<a name="wp1072574"> </a><h1 class="pTitle">
FlexAttach Virtual pWWN CFS Distribution

</h1>
<a name="wp1072575"> </a><p class="pBody">
The FlexAttach virtual pWWN configuration is distributed for CFS through IPv4, and is enabled by 
default. The FlexAttach virtual pWWN distribution, by default, is on CFS region 201. The CFS region 
201 links only to the NPV-enabled switches. Other CFS features such as syslog is on region 0. Region 0 
will be linked through IPv4 for all NPV switches on the same physical fabric. If CFS has an option to 
link through IPv4 or ISL, then CFS will select the ISL path.

</p>
<a name="wp1072576"> </a><p class="pBodyAutonumNoRule">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> NPV switches do not have ISL (E or TE ports) and are linked through IPv4.

</p>
<hr /><br><p class="pBody">Copyright 2010-2013, Cisco Systems, Inc. All rights reserved.</p> 

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