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    <title>Mapping pWWN to Virtual pWWN </title>
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<a name="wp1073074"> </a><h1 class="pTitle">
Mapping pWWN to Virtual pWWN

</h1>
<a name="wp1073075"> </a><p class="pBody">
You can configure virtual pWWNs through real pWWNs. This process is required for NPIV hosts 
containing multiple pWWNs, of which only FLOGI is mapped to the virtual pWWN. Subsequent 
FDSIDs will have different mappings.

</p>
<a name="wp1073076"> </a><p class="pBody">
Several checks are done by the NPV core to ensure the uniqueness of virtual pWWNs in the switch across 
the NPV switches. When duplicate virtual pWWNs are configured, the subsequent logins are rejected by 
the NPV core switch.

</p>
<a name="wp1078461"> </a><h2 class="pHeading2">
Prerequisites
</h2>
<div class="pSmartList1"><ul class="pSmartList1">
<a name="wp1078384"> </a><li class="pSmartList1">The interface must be in a shut state and the specified virtual pWWN should not be logged in.
</li>
</ul></div>
<a name="wp1082665"> </a><h2 class="pHeading2">
Restrictions
</h2>
<div class="pSmartList1"><ul class="pSmartList1">
<a name="wp1082743"> </a><li class="pSmartList1">The specified virtual pWWN and the real pWWN must not be logged in.
</li>
</ul></div>
<a name="wp1073356"> </a><h2 class="pHeading2">
Detailed Steps
</h2>
<a name="wp1105162"> </a><p class="pBody">
To map pWWN to virtual pWWN, follow these steps:

</p>
<div class="pSmartList1"><ol type="1" class="pSmartList1">
<a name="wp1105163"> </a><li class="pSmartList1">In the Physical Attributes pane, expand <b class="cBold">Switches&#160;&gt;&#160;FC Services&#160;&gt;&#160;N_Port Virtualizer (NPV)&#160;&gt;&#160;Flex 
Attach</b>. 
</li>
<a name="wp1105164"> </a><li class="pSmartList1">In the FlexAttach window, click the <b class="cBold">Physical to Virtual pWWNs</b> tab.
</li>
<a name="wp1105165"> </a><p class="pListBodyLevel1">
You see the <b class="cBold">Physical to Virtual pWWNs</b> tab view. 

</p>
</ol></div>
<a name="wp1105166"> </a><p class="pBody">
The LastChange<b class="cBold"> </b>field displays the time when the virtual pWWN was changed.

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

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