<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<!-- saved from url=(0014)about:internet -->
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <meta http-equiv="Content-Style-Type" content="text/css" />
    <meta name="GENERATOR" content="Quadralay WebWorks AutoMap 2003 Platinum Edition Client for FrameMaker 8.6.6597.0" />
    <meta name="TEMPLATEBASE" content="emwebh8-1-17" />
    <meta name="LASTUPDATED" content="08/01/13 14:47:14" />
    <title>Combining Generation 1, Generation 2, Generation 3, and Generation 4 Modules </title>
    <!-- Copyright 2010-2013, Cisco Systems, Inc. All rights reserved. -->

    <link rel="StyleSheet" href="document.css" type="text/css" />
    <link rel="StyleSheet" href="catalog.css" type="text/css" />


<script> 
    var is_chrome = navigator.userAgent.toLowerCase().indexOf('chrome') > -1; 
   
    if(is_chrome){document.domain=document.domain}
   </script>
    <script type="text/javascript" language="JavaScript1.2" src="expand.js"></script>
    <script type="text/javascript" language="JavaScript1.2" src="page.js"></script>

    <script type="text/javascript" language="JavaScript1.2">
     <!--
      function  WWNoOp() {}
      function  WWNoValue() { return ""; }

      var  VarDropDown;

      if (typeof(HTMLHelp_Object) != "undefined")
      {
        VarDropDown = new WWDropDown_Object();
      }
      else
      {
        VarDropDown = new Object();
        VarDropDown.fAnchorOpen  = WWNoOp;
        VarDropDown.fAnchorClose = WWNoOp;
        VarDropDown.fDIVOpen  = WWNoOp;
        VarDropDown.fDIVClose = WWNoOp;
      }
     // -->
    </script>

  
<SCRIPT language="javascript">
<!--
  self.document.write("<link href='"+top.relPath+"shared/style.css' rel='stylesheet' type='text/css'>");
  myid=848;
  self.document.write("<script type='text/javascript' language='JavaScript' src='"+top.relPath+"shared/con_utils.js'></scr"+"ipt>");
//-->
</SCRIPT>
</head>

  <body onload="highlightSearchTerms();" bgcolor="#ffffff">

    
    <blockquote>
    <a name="top"></a>

    
    


<a name="wp1093863"> </a><h1 class="pTitle">
Combining Generation 1, Generation 2, Generation 3, and Generation 4 Modules

</h1>
<a name="wp1093864"> </a><p class="pBody">
Cisco MDS NX-OS Release 6.x and later supports combining Generation 1, Generation 2, Generation 
3, and Generation 4 modules and switches with the following considerations:

</p>
<div class="pSmartList1"><ul class="pSmartList1">
<a name="wp1093865"> </a><li class="pSmartList1">MDS NX-OS Release 4.1(1) and later features are not supported on the following Generation 1 
switches and modules:
</li>
<div class="pSmartList2"><ul class="pSmartList2">
<a name="wp1093867"> </a><li class="pSmartList2">Supervisor 1 module</li>
<a name="wp1093868"> </a><li class="pSmartList2">4-Port IP Storage Services module</li>
<a name="wp1093869"> </a><li class="pSmartList2">8-Port IP Storage Services module</li>
<a name="wp1093870"> </a><li class="pSmartList2">MDS 9216 switch</li>
<a name="wp1093871"> </a><li class="pSmartList2">MDS 9216A switch</li>
<a name="wp1093872"> </a><li class="pSmartList2">MDS 9020 switch</li>
<a name="wp1093873"> </a><li class="pSmartList2">MDS 9120 switch</li>
<a name="wp1093874"> </a><li class="pSmartList2">MDS 9140 switch</li>
</ul></div>
<a name="wp1093875"> </a><li class="pSmartList1">Supervisor-1 modules must be upgraded to Supervisor-2 modules on the MDS 9506 and MDS 9509 
Directors.
</li>
<a name="wp1093876"> </a><li class="pSmartList1">IPS-4 and IPS-8 modules must be upgraded to the MSM-18/4 Multiservice modules.
</li>
<a name="wp1147475"> </a><li class="pSmartList1">Fabric 1 modules must be upgraded to Fabric 2 modules on the MDS 9513 Director to use the 
48-port or the 24-port 8-Gbps module.
</li>
<a name="wp1157297"> </a><li class="pSmartList1">Fabric 2 modules must be upgraded to Fabric 3 modules on the MDS 9513 Director to get the 
maximum backplane bandwidth of 256 Gbps. 
</li>
<a name="wp1147476"> </a><li class="pSmartList1">Cisco Fabric Manager Release 4.x supports MDS SAN-OS Release 3.x and NX-OS 4.x in mixed 
mode through Interswitch Link (ISL) connectivity.
</li>
</ul></div>
<a name="wp1093880"> </a><p class="pBodyAutonumNoRule">
<strong>Note	&nbsp;&nbsp;&nbsp;</strong> When a Cisco or another vendor switch port is connected to a Generation 1 module port (ISL 
connection), the receive buffer-to-buffer credits of the port connected to the Generation 1 module port 
must not exceed 255.

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

    </blockquote>

  </body>
</html>
