Command Reference Guide

Spanning Tree Protocol Commands
CLI Command Reference
September 2014 Page 291
HP Moonshot Switch Module CLI Command Reference
show spanning-tree mst port detailed
This command displays the detailed settings and parameters for a specific switch port within a particular
multiple spanning tree instance. The parameter
mstid is a number that corresponds to the desired existing
multiple spanning tree instance. The
unit/slot/port is the desired switch port. Instead of unit/slot/port, lag
lag-intf-num
can be used as an alternate way to specify the LAG interface. lag lag-intf-num can also be used
to specify the LAG interface where
lag-intf-num is the LAG port number.
Format
show spanning-tree mst port detailed mstid unit/slot/port|lag lag-intf-num
Mode •Privileged EXEC
• User EXEC
Term Definition
MST Instance ID The ID of the existing multiple spanning tree (MST) instance identifier. The value is
0–4094.
Port Identifier The port identifier for the specified port within the selected MST instance. It is
made up from the port priority and the interface number of the port.
Port Priority The priority for a particular port within the selected MST instance. The port priority
is displayed in multiples of 16.
Port Forwarding State Current spanning tree state of this port.
Port Role Each enabled MST Bridge Port receives a Port Role for each spanning tree. The port
role is one of the following values: Root Port, Designated Port, Alternate Port,
Backup Port, Master Port or Disabled Port
Auto-Calculate Port Path
Cost
Indicates whether auto calculation for port path cost is enabled.
Port Path Cost Configured value of the Internal Port Path Cost parameter.
Designated Root The Identifier of the designated root for this port.
Designated Port Cost The path cost to get to the root bridge for this instance. The root path cost is zero if
the bridge is the root bridge for that instance.
Designated Bridge Bridge Identifier of the bridge with the Designated Port.
Designated Port
Identifier
Port on the Designated Bridge that offers the lowest cost to the LAN.
Loop Inconsistent State The current loop inconsistent state of this port in this MST instance. When in loop
inconsistent state, the port has failed to receive BPDUs while configured with loop
guard enabled. Loop inconsistent state maintains the port in a blocking state until
a subsequent BPDU is received.
Transitions Into Loop
Inconsistent State
The number of times this interface has transitioned into loop inconsistent state.
Transitions Out of Loop
Inconsistent State
The number of times this interface has transitioned out of loop inconsistent state.