Rsmlt Considerations With Ospf - Avaya ERS 8800 series Configuration Manual

IPv6 routing fundamentals
If you enable RSMLT-edge, you must also ensure that the hold-up timer for RSMLT on those
edge VLANs is set to infinity (9999). This is to ensure that if one cluster switch fails, the
remaining cluster switch maintains ownership of its failed peer IPs indefinitely.
It does not matter if that VLAN is tagged over SMLT links, single attached links, or more SMLT
links; what is possible with VRRP, you can do with RSMLT-edge.
Be sure to save the configuration after you configure RSMLT-edge. This step is required in
order the save the peer MAC address.

RSMLT considerations with OSPF

If you run OSPF with RSMLT in a square or mesh, and a node loses the IST connection to its
peer, OSPF adjacencies can be lost. In this scenario, OSPF is not guaranteed to be in a
consistent state.
74 Configuration — IPv6 Routing November 2010