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    <title>Configuring Interop Mode 1 </title>
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<a name="wp1074832"> </a><h1 class="pTitle">
Configuring Interop Mode 1

</h1>
<a name="wp1074833"> </a><p class="pBody">
The interop mode1 in Cisco MDS 9000 Family switches can be enabled disruptively or nondisruptively. 

</p>
<a name="wp1074834"> </a><p class="pBodyAutonumNoRule">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> Brocade’s <code style="font-weight: bold" class="cCode">msplmgmtdeactivate </code>command must explicitly be run prior to connecting from a Brocade 
switch to either Cisco MDS 9000 Family switches or to McData switches. This command uses Brocade 
proprietary frames to exchange platform information, which Cisco MDS 9000 Family switches or 
McData switches do not understand. Rejecting these frames causes the common E ports to become 
isolated.

</p>
<a name="wp1078135"> </a><h2 class="pHeading2">
Detailed Steps
</h2>
<a name="wp1093616"> </a><p class="pBody">
To configure interop mode 1 for a VSAN, follow these steps:

</p>
<div class="pSmartList1"><ol type="1" class="pSmartList1">
<a name="wp1093617"> </a><li class="pSmartList1">Choose <span style="font-style: normal; font-weight: bold">VSAN</span><span style="font-style: italic; font-weight: bold">xxx</span><span style="font-weight: bold"> &gt; VSAN Attributes </span>from the Logical Domains pane. 
</li>
<a name="wp1093618"> </a><li class="pSmartList1">Select <span style="font-weight: bold">Interop-1</span> from the Interop drop-down menu.
</li>
<a name="wp1093619"> </a><li class="pSmartList1">Click <span style="font-weight: bold">Apply Changes</span> to save this interop mode.
</li>
<a name="wp1093620"> </a><li class="pSmartList1">Expand <span style="font-style: normal; font-weight: bold">VSAN</span><span style="font-style: italic; font-weight: bold">xxx</span><span style="font-weight: bold"> </span>and then select <span style="font-weight: bold">Domain Manager </span>from the Logical Domains pane. 
</li>
<a name="wp1093621"> </a><p class="pListBodyLevel1">
You see the Domain Manager configuration in the Information pane. 

</p>
<a name="wp1093622"> </a><li class="pSmartList1">Set the Domain ID in the range of 97 (0x61) through 127 (0x7F). 
</li>
<div class="pSmartList2"><ol type="a" class="pSmartList2">
<a name="wp1093623"> </a><li class="pSmartList2">Click the <b class="cBold">Configuration</b> tab.</li>
<a name="wp1093624"> </a><li class="pSmartList2">Click in the Configure Domain ID column under the Configuration tab.</li>
<a name="wp1093625"> </a><li class="pSmartList2">Click the <b class="cBold">Running</b> tab and check that the change has been made.</li>
</ol></div>
<a name="wp1093626"> </a><p class="pListNote1">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> This is a limitation imposed by the McData switches. 

</p>
<a name="wp1093627"> </a><p class="pListNote1">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> When changing the domain ID, the FC IDs assigned to N ports also change.

</p>
<a name="wp1093628"> </a><li class="pSmartList1"> Change the Fibre Channel timers (if they have been changed from the system defaults). 
</li>
<a name="wp1093629"> </a><p class="pListNote1">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> The Cisco MDS 9000, Brocade, and McData FC error detect (ED_TOV) and resource allocation 
(RA_TOV) timers default to the same values. They can be changed if needed. The RA_TOV 
default is 10 seconds, and the ED_TOV default is 2 seconds. Per the FC-SW2 standard, these 
values must be the same on each switch within the fabric.

</p>
<div class="pSmartList2"><ol type="a" class="pSmartList2">
<a name="wp1093630"> </a><li class="pSmartList2">Expand <span style="font-weight: bold">Switches &gt; FC Services, </span>and then select <span style="font-weight: bold">Timers and Policies</span>. You see the timer settings in the Information pane.</li>
<a name="wp1093631"> </a><li class="pSmartList2">Click <span style="font-weight: bold">Change Timeouts</span> to modify the time-out values. </li>
<a name="wp1093632"> </a><li class="pSmartList2">Click <span style="font-weight: bold">Apply</span> to save the new time-out values.</li>
</ol></div>
<a name="wp1093633"> </a><li class="pSmartList1">(Optional) Choose <span style="font-style: normal; font-weight: bold">VSAN</span><span style="font-style: italic; font-weight: bold">xxx</span><span style="font-weight: bold"> &gt; Domain Manager&gt; Configuration </span>and select <span style="font-weight: bold">disruptive</span> or 
<span style="font-weight: bold">nonDisruptive</span> in the Restart column to restart the domain. 
</li>
</ol></div>
<hr /><br><p class="pBody">Copyright 2010-2013, Cisco Systems, Inc. All rights reserved.</p> 

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