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<a name="wp1077646"> </a><h1 class="pTitle">
Port Swapping 

</h1>
<a name="wp1077647"> </a><p class="pBody">
The FICON port-swapping feature is only provided for maintenance purposes.

</p>
<a name="wp1077649"> </a><p class="pBody">
The FICON port-swapping feature causes all configurations associated with <em style="font-style: italic; font-weight: normal">old-port-number </em>and <em style="font-style: italic; font-weight: normal">new 
port-number </em>to be swapped, including VSAN configurations. 

</p>
<a name="wp1077650"> </a><p class="pBody">
Cisco MDS switches allow port swapping for nonexistent ports as follows:

</p>
<div class="pSmartList1"><ul class="pSmartList1">
<a name="wp1077651"> </a><li class="pSmartList1">Only FICON-specific configurations (prohibit, block, and port address mapping) are swapped. 
</li>
<a name="wp1077652"> </a><li class="pSmartList1">No other system configuration is swapped. 
</li>
<a name="wp1077653"> </a><li class="pSmartList1">All other system configurations are only maintained for existing ports.
</li>
<a name="wp1077654"> </a><li class="pSmartList1">If you swap a port in a module that has unlimited oversubscription ratios enabled with a port in a 
module that has limited oversubscription ratios, then you may experience a degradation in 
bandwidth.
</li>
<a name="wp1077655"> </a><p class="pBodyAutonumRel">
<strong>Tip	&nbsp;&nbsp;&nbsp;</strong> If you check the <b style="font-weight: normal" class="cBold">Active=Saved</b><b class="cBold"> </b>check box <b class="cBold">active equals saved </b>is enabled on any FICON VSAN, then 
the swapped configuration is automatically saved to startup. Otherwise, you must explicitly save the 
running configuration immediately after swapping the ports.

</p>
</ul></div>
<a name="wp1077656"> </a><p class="pBody">
Once you swap ports, the switch automatically performs the following actions:

</p>
<div class="pSmartList1"><ul class="pSmartList1">
<a name="wp1077657"> </a><li class="pSmartList1">Shuts down both the old and new ports.
</li>
<a name="wp1077658"> </a><li class="pSmartList1">Swaps the port configuration.
</li>
</ul></div>
<a name="wp1077659"> </a><p class="pBody">
If you attempt to bring the port up, you must explicitly shut down the port to resume traffic.

</p>
<a name="wp1153549"> </a><p class="pBodyAutonumNoRule">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> To view the latest FICON information, you must click the <span style="font-weight: bold">Refresh</span> button. See the <a href="ficon49.html">&quot;Automatically 
Saving the Running Configuration&quot; topic</a>.

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

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