advertise backup (VSRP)
By default, backups do not send Hello messages to advertise themselves to the master.
VSRP VRID configuration mode
When a backup is enabled to send Hello messages, the backup sends a Hello message
to the master every 60 seconds by default. You can change the interval to be up to
3600 seconds using the backup-hello-interval command.
The
no form of the command disables the backup from sending the Hello messages.
The following example enables a backup to send Hello messages to the master.
device(config)# vlan 200 device(config-vlan-200)# tagged ethernet 1/1/1 to 1/1/8 device(config-vlan-200)# vsrp vrid 1 device(config-vlan-200-vrid-1)# backup device(config-vlan-200-vrid-1)# activate device(config-vlan-200-vrid-1)# advertise backup