Enabling Domain Manager Fast Restart; Switch Priority; Configuring Switch Priority - Cisco Nexus 5000 Series Configuration Manual

Fibre Channel Domains
BF phase, followed by a principal switch selection phase. The fast restart feature can be used in any
interoperability mode.

Enabling Domain Manager Fast Restart

You can enable the domain manager fast restart feature.
SUMMARY STEPS
1. configure terminal
2. fcdomain optimize fast-restart vsan vsan-id
3. no fcdomain optimize fast-restart vsan vsan-id
DETAILED STEPS
Command or Action
Step 1 configure terminal
Example:
switch# configure terminal
switch(config)#
Step 2
fcdomain optimize fast-restart vsan vsan-id
Example:
switch(config)# fcdomain optimize fast-restart
vsan 1
Step 3 no fcdomain optimize fast-restart vsan vsan-id
Example:
switch(config)# no fcdomain optimize fast-restart
vsan 1

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

You can configure the priority for the principal switch.
Cisco Nexus 5000 Series NX-OS SAN Switching Configuration Guide, Release 5.2(1)N1(1)
34
Configuring Fibre Channel Domain Parameters
Purpose
Enters global configuration mode.
Enables domain manager fast restart in the specified
VSAN. The VSAN ID range is from 1 to 4093.
Disables (default) domain manager fast restart in the
specified VSAN. The VSAN ID range is from 1 to 4093.
OL-27583-01