etsysStpDiagMstiId 1.3.6.1.4.1.5624.1.2.29.1.4.1.1.1

The unique ID of this Multiple Spanning Tree instance. The CIST (common and internal spanning tree) is not represented in this table. There are a maximum of sixty-four MSTIs, each with a unique identifier in the range of 1-4094.