Port > Configure > Spanning Tree > Multi Spanning Tree (MST) > MST Port Role Info
This dialog box provides port role information for a particular MST instance. The following data is displayed:
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MST Instance (stpxMSTPortRoleInstanceIndex)
Unique identifier for an MST instance that is supported by the device. Values can range from 0 to the value of MST Max Instance Number.
Indicates the port role for a particular MST instance.