Configuring VRRP
The Virtual Router Redundancy Protocol (VRRP) can prevent loss of network connectivity to end hosts if the static default IP gateway fails. By implementing VRRP, you can designate a number of routers as "backup" routers in case the default "master" router fails. You can configure VRRP on IP/Ethernet interfaces.
For information about configuring VRRP, see JUNOSe IP Services Configuration Guide, Chapter 14, Configuring VRRP.