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<a name="wp1060243"> </a><h1 class="pTitle">
Information About FCS

</h1>
<a name="wp1053223"> </a><p class="pBody">
The Fabric Configuration Server (FCS) provides discovery of topology attributes and maintains a 
repository of configuration information of fabric elements. A management application is usually 
connected to the FCS on the switch through an N port. The FCS views the entire fabric based on the 
following objects:

</p>
<div class="pSmartList1"><ul class="pSmartList1">
<a name="wp1053224"> </a><li class="pSmartList1">Interconnect element (IE) object&#8212;Each switch in the fabric corresponds to an IE object. One or 
more IE objects form a fabric.
</li>
<a name="wp1053225"> </a><li class="pSmartList1">Port object&#8212;Each physical port in an IE corresponds to a port object. This includes the switch ports 
(xE, Fx, and TL ports) and their attached Nx ports.
</li>
<a name="wp1053228"> </a><li class="pSmartList1">Platform object&#8212;A set of nodes may be defined as a platform object to make it a single manageable 
entity. These nodes are end-devices (host systems, storage subsystems) attached to the fabric. 
Platform objects reside at the edge switches of the fabric.
</li>
</ul></div>
<a name="wp1053229"> </a><p class="pBody">
Each object has its own set of attributes and values. A null value may also be defined for some attributes.

</p>
<a name="wp1086940"> </a><p class="pBody">
In the Cisco MDS 9000 Family switch environment, multiple VSANs constitute a fabric, where one 
instance of the FCS is present per VSAN. 

</p>
<a name="wp1060209"> </a><p class="pBody">
As of Cisco NX-OS Release 4.1(1), FCS supports the discovery of virtual devices. The <b class="cBold">fcs 
virtual-device-add</b> command, issued in FCS configuration submode, allows you to discover virtual 
devices in a particular VSAN or in all VSANs. The devices that are zoned for IVR must be discovered 
with this command and have request domain_ID (RDI) enabled, before activating the IVR zone set.

</p>
<a name="wp1053232"> </a><p class="pBody">
If you have attached a management application to a switch, all the frames directed towards the FCS in 
the switch are part of the port VSAN in the switch port (Fx port). Your view of the management 
application is limited only to this VSAN. However, information about other VSANs that this switch is 
part of can be obtained either through the SNMP or CLI.

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

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