# MST Port Role Information

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:

- MST Instance (stpxMSTPortRoleInstanceIndex)

- Role (stpxMSTPortRoleValue)

Do one of the following:

- Click Cancel to close the dialog box.

- Click Refresh to update the contents of the dialog box.

- Click Print to print the contents of the dialog box.

- Click Help to access online help.

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.

Role (stpxMSTPortRoleValue)

Indicates the port role for a particular MST instance.