VRRP protocol
This protocol allows a cluster of routers to act as one virtual router. VRRP, provides router failover services during an interface failure, as specified by RFC 2338, RFC 3768 and RFC 5798.
vRouter supports VRRP on physical Ethernet interfaces and on VLAN interfaces (vif).
VRRP version 2 supports IPv4 addresses
Proprietary mode of VRRP version 2 supports IPv6 addresses.
VRRP version 3 supports IPv4 and IPv6 addresses.