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    <title>About the Reserved FICON Port Numbering Scheme </title>
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<a name="wp1073477"> </a><h1 class="pTitle">
About the Reserved FICON Port Numbering Scheme

</h1>
<a name="wp1073481"> </a><p class="pBody">
A range of 250 port numbers are available for you to assign to all the ports on a switch. <a href="ficon35.html#wp1079802">Table&#160;25-3</a> shows 
that you can have more than 250 physical ports on a switch and the excess ports do not have port numbers 
in the default numbering scheme. When you have more than 250 physical ports on your switch, you can 
have ports without a port number assigned if they are not in a FICON VSAN, or you can assign duplicate 
port numbers if they are not used in the same FICON VSAN. For example, you can configure port 
number 1 on interface fc1/1 in FICON VSAN 10 and fc10/1 in FICON VSAN 20.

</p>
<a name="wp1073482"> </a><p class="pBodyAutonumNoRule">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> A VSAN can have a maximum of 250 port numbers.

</p>
<a name="wp1073483"> </a><p class="pBodyAutonumNoRule">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> FICON port numbers are not changed for ports that are active. You must first disable the interfaces using 
the <b class="cBold">shutdown</b> command.

</p>
<a name="wp1073484"> </a><p class="pBodyAutonumNoRule">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> You can configure port numbers even when no module is installed in the slot.

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

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