Avaya ERS 8800 series Configuration Manual page 66

IPv6 routing fundamentals
To resolve this issue, assign the backup router as the backup master router. The backup master
router can actively load-share the routing traffic with a master router.
Because there is an exchange of MAC address tables between the two VRRP peer nodes, the
VRRP backup master can forward traffic directly on behalf of the master router. The switch in
the backup master state routes all traffic received on the backup master IP interface according
to its routing table. It does not Layer 2-switch the traffic to the master router.
As a result, when the backup master router is enabled with SMLT, the incoming host traffic is
forwarded over the SMLT links as usual.
The following figure shows a sample VRRP configuration with SMLT. Because the backup
router is configured as the backup master, routing traffic is load-shared between the two
devices.
66 Configuration — IPv6 Routing November 2010