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    <title>iSNS Client Registration and Deregistration </title>
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<a name="wp1092905"> </a><h1 class="pTitle">
iSNS Client Registration and Deregistration

</h1>
<a name="wp1092907"> </a><p class="pBody">
An iSNS client cannot query the iSNS server until it has registered. iSNS client deregistration can occur 
either explicitly or when the iSNS server detects that it can no longer reach the client (through ESI 
monitoring). 

</p>
<a name="wp1092908"> </a><p class="pBody">
iSNS client registration and deregistration result in status change notifications (SCNs) being generated 
to all interested iSNS clients.

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

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