VRRP virtual router configuration

Overview

VRRP allows the creation of a redundant routing system that takes over packet transmissions on a common LAN segment when a router fails. VRRP designates alternative routing paths in the form of a virtual router, without changing the IP address or MAC address of a protected router. The XML API supports the creation of virtual routers on IES services and core network LAN services.

With VRRP, a protected router owns the IP address of the virtual router. The owner router normally forwards packets to hosts on the default gateway. If the owner router fails, the virtual router, which has the same IP address as the owner, shifts packet-forwarding responsibilities to a designated backup router. The backup router then becomes the primary router and forwards packets on the virtual router IP address.