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<a name="wp1072739"> </a><h1 class="pTitle">
TL Port

</h1>
<a name="wp1072740"> </a><p class="pBody">
In translative loop port (TL port) mode, an interface functions as a translative loop port. It may be 
connected to one or more private loop devices (NL ports). TL ports are specific to Cisco MDS 9000 
Family switches and have similar properties as FL ports. TL ports enable communication between a 
private loop device and one of the following devices:

</p>
<div class="pSmartList1"><ul class="pSmartList1">
<a name="wp1072741"> </a><li class="pSmartList1">A device attached to any switch on the fabric 
</li>
<a name="wp1072742"> </a><li class="pSmartList1">A device on a public loop anywhere in the fabric
</li>
<a name="wp1072743"> </a><li class="pSmartList1">A device on a different private loop anywhere in the fabric
</li>
<a name="wp1072744"> </a><li class="pSmartList1">A device on the same private loop
</li>
</ul></div>
<a name="wp1072746"> </a><p class="pBody">
TL ports support class 2 and class 3 services.

</p>
<a name="wp1072747"> </a><p class="pBody">
Private loop devices refer to legacy devices that reside on arbitrated loops. These devices are not aware 
of a switch fabric because they only communicate with devices on the same physical loop (see the <a href="intf29.html">&quot;TL 
Port ALPA Caches&quot; topic</a>).

</p>
<a name="wp1072751"> </a><p class="pBodyAutonumRel">
<strong>Tip	&nbsp;&nbsp;&nbsp;</strong> We recommend configuring devices attached to TL ports in zones that have up to 64 zone members. 

</p>
<a name="wp1072752"> </a><p class="pBodyAutonumNoRule">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> TL port mode is not supported on Generation 2 switching module interfaces.

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

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