Avaya 8800 Planning And Engineering, Network Design page 91

Figure 26: VLAN with all IP telephones as members
Example: RSMLT network with static routes at the access layer
You can use default routes that point towards the RSMLT IP interfaces of the aggregation layer to
achieve a very robust redundant edge design, as shown in the following figure. As well, you can
install a static route towards the edge.
Figure 27: VLAN edge configuration
IPv6 RSMLT
While Avaya's Routed Split MultiLink Trunk (RSMLT) functionality originally provided sub-second
failover for IPv4 forwarding only, the Avaya Ethernet Routing Switch 8800/8600 extends RSMLT
functionality to IPv6. The overall model for IPv6 RSMLT is essentially identical to that of IPv4
RSMLT. In short, RSMLT peers exchange their IPv6 configuration and track each other's state by
means of IST messages. An RSMLT node always performs IPv6 forwarding on the IPv6 packets
June 2016 Planning and Engineering — Network Design
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Network redundancy
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