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    <title>CFS Merge Process </title>
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<a name="wp1087653"> </a><h1 class="pTitle">
CFS Merge Process

</h1>
<a name="wp1087654"> </a><p class="pBody">
When two fabrics merge, CFS attempts to merge the iSLB configuration from both the fabrics. A 
designated switch (called the <em class="cEmphasis">dominant switch</em>) in one fabric sends its iSLB configuration to a designated 
switch (called the <em class="cEmphasis">subordinate switch</em>) in the other fabric. The subordinate switch compares its running 
configuration to the received configuration for any conflicts. If no conflicts are detected, it merges the 
two configurations and sends it to all the switches in both the fabrics. Each switch then validates the 
configuration. This check ensures the following:

</p>
<div class="pSmartList1"><ul class="pSmartList1">
<a name="wp1087655"> </a><li class="pSmartList1">VSANs assigned to the iSLB initiators are configured on all the switches.
</li>
<a name="wp1087656"> </a><li class="pSmartList1">The static WWNs configured for the iSLB initiators are unique and available on all the switches.
</li>
<a name="wp1087657"> </a><li class="pSmartList1">The iSLB initiator node names have no conflicts with iSCSI initiators on all the switches. 
</li>
</ul></div>
<a name="wp1087658"> </a><p class="pBody">
If this check completes successfully, the subordinate switch directs all the switches to commit the 
merged configuration to running configuration. If any check fails, the merge fails. 

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

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