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    <title>Guidelines to Configure VSANs as a Source </title>
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<a name="wp1493608"> </a><h1 class="pTitle">
Guidelines to Configure VSANs as a Source

</h1>
<a name="wp1493609"> </a><p class="pBody">
The following guidelines apply when configuring VSANs as a source:

</p>
<div class="pSmartList1"><ul class="pSmartList1">
<a name="wp1493610"> </a><li class="pSmartList1">Traffic on all interfaces included in a source VSAN is spanned only in the ingress direction.
</li>
<a name="wp1493611"> </a><li class="pSmartList1">If a VSAN is specified as a source, you cannot perform interface-level SPAN configuration on the 
interfaces that are included in the VSAN. Previously configured SPAN-specific interface 
information is discarded.
</li>
<a name="wp1493612"> </a><li class="pSmartList1">If an interface in a VSAN is configured as a source, you cannot configure that VSAN as a source. 
You must first remove the existing SPAN configurations on such interfaces before configuring 
VSAN as a source.
</li>
<div class="pSmartList2"><ul class="pSmartList2">
<a name="wp1493617"> </a><li class="pSmartList2">Interfaces are only included as sources when the port VSAN matches the source VSAN.  ports in the switch are in VSAN 1 except fc1/1.</li>
<a name="wp1493618"> </a><li class="pSmartList2">Interface fc1/1 is the TE port with port VSAN 2. VSANs 1, 2, and 3 are configured in the allowed list.</li>
<a name="wp1493619"> </a><li class="pSmartList2">VSAN 1 and VSAN 2 are configured as SPAN sources. </li>
<a name="wp1493626"> </a><p class="pBodyRelative">

</p>
</ul></div>
<a name="wp1493627"> </a><p class="pListBodyLevel1">
For this configuration, the following apply:

</p>
<div class="pSmartList2"><ul class="pSmartList2">
<a name="wp1493628"> </a><li class="pSmartList2">VSAN 2 as a source includes only the TE port fc1/1 that has port VSAN 2.</li>
</ul></div>
<a name="wp1493601"> </a><li class="pSmartList1">VSAN 1 as a source does not include the TE port fc1/1 because the port VSAN does not match 
VSAN 1.
</li>
</ul></div>
<hr /><br><p class="pBody">Copyright 2010-2013, Cisco Systems, Inc. All rights reserved.</p> 

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