Chapter 33 Configuring Domain Parameters; Information About Fibre Channel Domains - Cisco AJ732A - MDS 9134 Fabric Switch Configuration Manual

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Configuring Domain Parameters
The Fibre Channel domain (fcdomain) feature performs principal switch selection, domain ID
distribution, FC ID allocation, and fabric reconfiguration functions as described in the FC-SW-2
standards. The domains are configured on a per-VSAN basis. If you do not configure a domain ID, the
local switch uses a random ID.
Caution Changes to fcdomain parameters should not be performed on a daily basis. These changes should be
made by an administrator or individual who is completely familiar with switch operations.
When you change the configuration, be sure to save the running configuration. The next time you reboot
Tip
the switch, the saved configuration is used. If you do not save the configuration, the previously saved
startup configuration is used.
This chapter includes the following sections:
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Information About Fibre Channel Domains

This section describes each fcdomain phase:
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See
OL-16597-01
Information About Fibre Channel Domains, page 33-1
Domain IDs, page 33-6
FC IDs, page 33-13
Verifying fcdomain Information, page 33-18
Default Settings, page 33-19
Principal switch selection—This phase guarantees the selection of a unique principal switch across
the fabric.
Domain ID distribution—This phase guarantees each switch in the fabric obtains a unique domain
ID.
FC ID allocation—This phase guarantees a unique FC ID assignment to each device attached to the
corresponding switch in the fabric.
Fabric reconfiguration—This phase guarantees a resynchronization of all switches in the fabric to
ensure they simultaneously restart a new principal switch selection phase.
Figure 33-1 for an example fcdomain configuration.
C H A P T E R
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
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33-1