VRRP Operation
VRRP router priority determines the role that each VRRP router plays. If the IP address of the physical interface on a VRRP router is configured as the virtual IP address, this router will function as the virtual router master. The same priority also determines the likelihood of a router becoming the virtual router master if the virtual router master fails. If there are multiple routers acting as virtual router backup, the one with the highest priority becomes the virtual router master if the original virtual router master fails. You can configure the priority of each virtual router backup with a value of 1 through 254 using vrrp priority command.