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    <title>Configuring Duplicate Message Throttle </title>
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<a name="wp1095711"> </a><h1 class="pTitle">
Configuring Duplicate Message Throttle

</h1>
<a name="wp1093957"> </a><p class="pBody">
You can configure a throttling mechanism to limit the number of Call Home messages received for the 
same event. If the same message is sent multiple times from the switch within a short period of time, you 
may be swamped with a large number of duplicate messages. 

</p>
<a name="wp1181936"> </a><h2 class="pHeading2">
Restrictions 
</h2>
<div class="pSmartList1"><ul class="pSmartList1">
<a name="wp1181937"> </a><li class="pSmartList1">By default, this feature is enabled in all switches in the Cisco MDS 9000 Family and the Cisco 
Nexus 5000 Series switches. When enabled, if the number of messages sent exceeds the maximum 
limit of 30 messages within the 2-hour time frame, then additional messages for that alert type are 
discarded within that time frame. You cannot modify the time frame or the message counter limit.
</li>
<a name="wp1094153"> </a><li class="pSmartList1">If 2 hours have elapsed since the first such message was sent and a new message has to be sent, then 
the new message is sent and the time frame is reset to the time when the new message was sent and 
the count is reset to 1. 
</li>
</ul></div>
<a name="wp1094191"> </a><h2 class="pHeading2">
Detailed Steps
</h2>
<a name="wp1283929"> </a><p class="pBody">
To enable message throttling in a Cisco MDS 9000 Family switch or a Cisco Nexus 5000 Series switch, 
follow these steps:

</p>
<div class="pSmartList1"><ol type="1" class="pSmartList1">
<a name="wp1283930"> </a><li class="pSmartList1">Select a switch in the Fabric pane.
</li>
<a name="wp1283931"> </a><li class="pSmartList1">Expand <span style="font-weight: bold">Events</span> and select <span style="font-weight: bold">Call Home </span>in the Physical Attributes pane.
</li>
<a name="wp1283932"> </a><p class="pListBodyLevel1">
You see the Call Home information in the Information pane.

</p>
<a name="wp1283933"> </a><li class="pSmartList1">Click the <b class="cBold">Control </b>tab.
</li>
<a name="wp1283934"> </a><li class="pSmartList1">Select a switch in the Information pane.
</li>
<a name="wp1283935"> </a><li class="pSmartList1">Check the <b class="cBold">Duplicate Msg Throttle</b> check box.
</li>
<a name="wp1283936"> </a><li class="pSmartList1">Click the <b class="cBold">Apply Changes</b> icon.
</li>
</ol></div>
<hr /><br><p class="pBody">Copyright 2010-2013, Cisco Systems, Inc. All rights reserved.</p> 

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