VRRP has some unique features:
uu VRRP provides redundancy for the real IP address of a router or for a virtual IP address
shared among the VRRP group members.
uu If a real IP address is used, the router with that address becomes the master.
uu If a virtual IP address is used, the master is the router with the highest priority.
uu A VRRP group has one master router and one or more backup routers.
uu The master router uses VRRP messages to inform group members of its status.
uu VRRP allows load sharing across more than one virtual router.