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    <title>About Device Alias Modes </title>
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<a name="wp1074963"> </a><h1 class="pTitle">
About Device Alias Modes

</h1>
<a name="wp1072640"> </a><p class="pBody">
Device alias supports two modes: basic and enhanced mode. 

</p>
<div class="pSmartList1"><ul class="pSmartList1">
<a name="wp1072641"> </a><li class="pSmartList1">When device alias runs in the basic mode, all applications function like the applications on the Cisco 
SAN-OS Release 3.0 switches. When you configure the basic mode using device aliases, the 
application immediately expands to pWWNs. This operation continues until the mode is changed to 
enhanced.
</li>
<a name="wp1072642"> </a><li class="pSmartList1">	When device alias runs in the enhanced mode, all applications accept the device-alias configuration 
in the native format. The applications store the device alias name in the configuration and distribute 
it in the device alias format instead of expanding to pWWN. The applications track the device alias 
database changes and take actions to enforce it.
</li>
</ul></div>
<a name="wp1072643"> </a><p class="pBody">
A native device-alias configuration is not accepted in the interop mode VSAN. IVR zoneset activation 
will fail in interop mode VSANs if the corresponding twilight zones being injected are native device 
alias members.

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

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