Multiple Spanning Tree Protocol (MSTP) on Multi-switch Link Aggregation Groups (MLAGs)

For ExtremeXOS 22.6, Multi-switch Link Aggregation Group (MLAG) is extended to Multiple Spanning Tree Protocol (MSTP), in addition to Rapid Spanning Tree Protocol (RSTP), which was introduced in ExtremeXOS 22.5.

You can configure MSTP on MLAG peers and access switches, which can prevent loops in networks containing MLAG topology. This allows third-party switches to be connected to MLAG topology (as access switches) and an MSTP domain can span ExtremeXOS and third-party switches. In typical MLAG deployments, connections can exist between access switches, which can cause data loops. By configuring MSTP on all the nodes, loops can be effectively prevented.

MSTP is supported in simple MLAG, W-MLAG, and two-tier MLAG topologies.