About Switch Priority; Configuring Switch Priority - Cisco Nexus 5000 Series Configuration Manual

Information About Fibre Channel Domains
SUMMARY STEPS
1. switch# configuration terminal
2. switch(config)# fcdomain optimize fast-restart vsan vsan-id
3. switch(config)# fcdomain optimize fast-restart vsan vsan-id - vsan-id
4. switch(config)# no fcdomain optimize fast-restart vsan vsan-id
DETAILED STEPS
Command or Action
Step 1 switch# configuration terminal
Step 2 switch(config)# fcdomain optimize fast-restart vsan
vsan-id
Step 3 switch(config)# fcdomain optimize fast-restart vsan
vsan-id - vsan-id
Step 4 switch(config)# no fcdomain optimize fast-restart vsan
vsan-id

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 cannot 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 world-wide name (WWN) becomes the principal switch.
The priority configuration is applied to runtime when the fcdomain is restarted. This configuration is applicable
to both disruptive and nondisruptive restarts.

Configuring Switch Priority

To configure the priority for the principal switch, perform this task:
SUMMARY STEPS
1. switch# configuration terminal
2. switch(config)# fcdomain priority number VSAN vsan-id
3. switch(config)# no fcdomain priority number VSAN vsan-id
Cisco Nexus 5000 Series NX-OS SAN Switching Configuration Guide
30
Configuring Domain Parameters
Purpose
Enters configuration mode.
Enables domain manager fast restart in the specified
VSAN.
Enables domain manager fast restart in the specified
range of VSANs.
Disables (default) domain manager fast restart in the
specified VSAN.
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