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<a name="wp1072177"> </a><h1 class="pTitle">
Guidelines and Limitations

</h1>
<a name="wp1080374"> </a><p class="pBody">
iSLB configuration has the following limits:

</p>
<div class="pSmartList1"><ul class="pSmartList1">
<a name="wp1080375"> </a><li class="pSmartList1">The maximum number of iSLB and iSCSI initiators supported in a fabric is 2000. 
</li>
<a name="wp1080376"> </a><li class="pSmartList1">The maximum number of iSLB and iSCSI sessions supported by an IPS port in either transparent or 
proxy initiator mode is 500.
</li>
<a name="wp1332259"> </a><li class="pSmartList1">The maximum number of iSLB  initiators supported in a fabric is 2000. 
</li>
<a name="wp1332263"> </a><li class="pSmartList1">  The maximum number of iSLB sessions per IPS port in either transparent or proxy initiator mode 
is 500.
</li>
<a name="wp1080386"> </a><li class="pSmartList1">The maximum number of switches in a fabric that can have iSLB with CFS distribution enabled is 
four. 
</li>
<a name="wp1080387"> </a><li class="pSmartList1">No more than 200 new iSLB initiators can be added to the pending configuration. Before adding 
more initiators, you must commit the configuration. 
</li>
<a name="wp1080388"> </a><li class="pSmartList1">You cannot disable iSCSI if you have more than 200 iSLB initiators in the running configuration. 
Reduce the number of iSLB initiators to fewer than 200 before disabling iSCSI.
</li>
<a name="wp1080390"> </a><li class="pSmartList1">iSLB can be used without CFS distribution but if iSLB auto-zone feature is used, traffic is disrupted 
when any zoneset is activated.
</li>
<a name="wp1080391"> </a><li class="pSmartList1">If IVR and iSLB features are enabled in the same fabric, you should have at least one switch in the 
fabric where both these features are enabled. Any zoning-related configuration and activation (for 
normal zones, IVR zones, or iSLB zones) must be performed on this switch. Otherwise, there may 
be traffic disruption in the fabric.
</li>
</ul></div>
<hr /><br><p class="pBody">Copyright 2010-2013, Cisco Systems, Inc. All rights reserved.</p> 

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