About Switch Priority; Configuring Switch Priority; About Fcdomain Initiation; Disabling Or Reenabling Fcdomains - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

Chapter 18 Configuring Domain Parameters
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m

About Switch Priority

By default, the configured priority is 128. The valid range to set the priority is between 1 and 254.
Priority 1 has the highest priority. Value 255 is accepted from other switches, but cannot be locally
configured.
Any new switch can become the principal switch when it joins a stable fabric. During the principal
switch selection phase, the switch with the highest priority becomes the principal switch. If two switches
have the same configured priority, the switch with the lower WWN becomes the principal switch.
The priority configuration is applied to runtime when the fcdomain is restarted (see the
Restart" section on page
restarts.

Configuring Switch Priority

To configure the priority for the principal switch, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# fcdomain priority 25 VSAN 99
switch(config)# no fcdomain priority 25 VSAN 99

About fcdomain Initiation

By default, the fcdomain feature is enabled on each switch. If you disable the fcdomain feature in a
switch, that switch can no longer participate with other switches in the fabric. The fcdomain
configuration is applied to runtime through a disruptive restart.

Disabling or Reenabling fcdomains

To disable or reenable fcdomains in a single VSAN or a range of VSANs, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# no fcdomain vsan 7-200
switch(config)# fcdomain vsan 2008
OL-18084-01, Cisco MDS NX-OS Release 4.x
18-3). This configuration is applicable to both disruptive and nondisruptive
Purpose
Enters configuration mode.
Disables the fcdomain configuration in VSAN 7
through 200.
Enables the fcdomain configuration in VSAN 2008.
Purpose
Enters configuration mode.
Configures a priority of 25 for the local switch
in VSAN 99.
Reverts the priority to the factory default (128)
in VSAN 99.
Cisco MDS 9000 Family CLI Configuration Guide
Fibre Channel Domains
"About Domain
18-5