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    <title>Resolving Merge and Device Alias Mode Mismatch </title>
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<a name="wp1072658"> </a><h1 class="pTitle">
Resolving Merge and Device Alias Mode Mismatch

</h1>
<a name="wp1072659"> </a><p class="pBody">
If two fabrics are running in different modes and the device alias merge fails between the fabrics, the 
conflict can be resolved by selecting one mode or the other. If you choose the enhanced mode, ensure 
that all the switches are running at least the Cisco SAN-OS Release 3.1. Otherwise, the enhanced mode 
cannot be turned on. If you choose the basic mode, the applications running on the enhanced fabric have 
to comply with the device alias merge.

</p>
<a name="wp1072660"> </a><p class="pBody">
The device alias merge fails because of mode mismatch, but the application merge succeeds if it does 
not have any native device alias configurations. 

</p>
<a name="wp1072661"> </a><p class="pBody">
If the native device alias configuration is attempted on an application from a Release 3.1 switch, the 
commit must be rejected because of device alias mode mismatch on some of the applications. 

</p>
<a name="wp1072662"> </a><p class="pBodyAutonumNoRule">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> The applications should not accept any native device alias configuration over SNMP if the device alias 
is running in the basic mode on that particular switch. 

</p>
<a name="wp1072663"> </a><p class="pBodyAutonumNoRule">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> Confcheck is added when the enhanced mode is turned on and removed when it is turned off. 
Applications have to add confcheck if they have a device alias configuration in the native format. They 
have to remove confcheck once the configuration is removed.

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

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