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    <title>Autoreconfiguring Merged Fabrics </title>
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<a name="wp1540855"> </a><h1 class="pTitle">
Autoreconfiguring Merged Fabrics

</h1>
<a name="wp1540856"> </a><p class="pBody">
By default, the autoreconfigure option is disabled. When you join two switches belonging to two 
different stable fabrics that have overlapping domains, the following cases apply:

</p>
<div class="pSmartList1"><ul class="pSmartList1">
<a name="wp1540857"> </a><li class="pSmartList1">If the autoreconfigure option is enabled on both switches, a disruptive reconfiguration phase is 
started.
</li>
<a name="wp1540858"> </a><li class="pSmartList1">If the autoreconfigure option is disabled on either or both switches, the links between the two 
switches become isolated.
</li>
</ul></div>
<a name="wp1540611"> </a><p class="pBody">
The autoreconfigure option takes immediate effect at runtime. You do not need to restart the fcdomain. 
If a domain is currently isolated due to domain overlap, and you later enable the autoreconfigure option 
on both switches, the fabric continues to be isolated. If you enabled the autoreconfigure option on both 
switches before connecting the fabric, a disruptive reconfiguration (RCF) will occur. A disruptive 
reconfiguration may affect data traffic. You can nondisruptively reconfigure the fcdomain by changing 
the configured domains on the overlapping links and eliminating the domain overlap.

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

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