Smlt Interoperability With Mstp - Avaya 8600 Configuration Manual

Figure 7: Output of the command show vlan info fdb-e 10

SMLT Interoperability with MSTP

Release 7.1 introduces functionality that allows interoperability between an SMLT cluster and
MSTP in an Ethernet network. When you configure an InterSwitch Trunk (IST) and enable
SMLT, with one command you can enable interoperability between the SMLT cluster and the
MSTP side of the network.
SMLT Interoperability for MSTP is a cost-effective advantage when, for instance, you deploy
SMLT in the core and data center but need fiber connections to edge devices. Instead, you
can deploy MSTP at the edge. Then you can connect the SMLT side of the network and the
MSTP side using SMLT Interoperability for MSTP, without sacrificing transition or
reconvergence times.
You can also use SMLT Interoperability for MSTP to provide resiliency and redundancy. For
example, when you are migrating your network from a Spanning Tree design towards an SMLT
Clustering design you can extend Layer 2 VLANs between the old and new networks and
maintain redundancy in case of link or node failure.
If you want to disable SMLT Interoperability for MSTP, ensure that you remove redundant
paths, for VLANs, to the existing IST path. To prevent the formation of a bridging loop and
Configuration — Link Aggregation, MLT, and SMLT
Split MultiLink Trunking
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