A new extension to the Virtual Router Redundancy Protocol (VRRP) has been added to implement an L3-based router, providing better support for VRRP over IPMP, InfiniBand, and Oracle Solaris Zones. Instead of using a unique virtual MAC address among VRRP routers in the same virtual router, the Layer 3 VRRP (L3 VRRP) implementation uses the Address Resolution Protocol (ARP) messages and Neighbor Discovery Protocol (NDP) messages to refresh the mapping between the virtual IP addresses and the MAC address of the current master VRRP router.
For more information, see Chapter 3, Using Virtual Router Redundancy Protocol, in Configuring an Oracle Solaris 11.2 System as a Router or a Load Balancer and the vrrpadm(1M) man page.