A Virtual Router Redundancy Protocol router is a single router image that is created by the operation of one or more routers that use the VRRP. VRRP runs on each VRRP router and manages the state of the router. A system can have multiple VRRP routers configured, where each VRRP router belongs to a different virtual router.
The Layer 2 VRRP router uses the standard VRRP protocol and requires a unique virtual router MAC address. The virtual IP addresses always resolves to the same virtual MAC address. You need to create a VRRP VNIC to get the unique virtual router MAC address. The proprietary Layer 3 VRRP feature in Oracle Solaris completely removes the need to configure unique VRRP virtual MAC addresses for VRRP routers, and thereby provides support for VRRP over IPMP and InfiniBand interfaces.
For information about using VRRP and configuring VRRP routers, see Using Virtual Router Redundancy Protocol and Configuring and Administering Virtual Router Redundancy Protocol.