Allied Telesis AT-DC2552XS - Manual (Page 358)

Chapter 14: STP Commands
358 Section II: Layer 2 Switching
The fields are described in Table 62.
Table 62. SHOW SPANNING-TREE MST INSTANCE Command
Field Description
MSTI Root Path Cost Displays the MSTI path cost notified by the
designated port. It is the path cost to the root
bridge of the MSTI.
MSTI Root Port Displays the ID of the MSTI root port.
MSTI Bridge Priority Displays the CIST bridge priority on the switch.
MSTI Root Id Displays the bridge ID of the MSTI root bridge.
MSTI Bridge Id Displays the bridge ID of the switch.
X topology changes Displays the number of topology changes.
last topology change Displays the most recent date the topology
changed.
For port
portX.X.X Displays the port ID on the switch.
Ifindex Displays the index number of the port.
Port Id Displays the port ID for Spanning Tree
Protocol.
Role Displays the port role. The options are:
 Disabled
 Alternate
 Backup
 Root
 Designated
 LoopGuard
State Displays the state of the port. The options are:
 Disabled
 Discarding
 Learning
 Forwarding
Designated Internal
Path Cost Displays the path cost notified by the
designated port. It is the path cost to the root
bridge of the MST instance.