Allied Telesis AT-GS950/8 - Manual (Page 98)

Chapter 5: Multiple Spanning Tree Protocol
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Instance Information
To view MST instance information, perform the following:
1. From the main menu on the left side of the page, select Bridge.
The Bridge folder expands.
2. From the Bridge folder, select the Spanning Tree folder.
The Spanning Tree folder expands.
3. From the Spanning Tree folder, select Instance Information.
The Instance Information Page is displayed. See Figure 34.
Figure 34. Instance Information Page
The following information displayed on this page shows the current
status of each MST instance:
MSTI ID - MST instance ID.
Internal Root Cost - Operating cost of a port when it is connected
to a bridge in the same MSTP region.
Root Port - Active port on the switch that is communicating with
the root bridge.
Regional Root Bridge - The root bridge of the MST instance.
Designated Bridge - The bridge providing the least-cost path to
the root bridge from a network segment.
Instance Priority - Regional root for a particular MST instance.