Show Spanning-Tree - Allied Telesis SwitchBlade x908 Series Software Reference Manual

Spanning Tree Commands

show spanning-tree

Use this command to display detailed spanning tree information on the specified port or on all
ports. Use this command for RSTP, MSTP or STP.
Note that any list of interfaces specified must not span any interfaces that are not installed.
A topology change counter has been included for RSTP and MSTP. You can see the topology
change counter for RSTP by using the show spanning-tree command. You can see the
topology change counter for MSTP by using the show spanning-tree mst instance command.
Syntax show spanning-tree [interface <port-list>]
Parameter
interface
<port-list>
Exec mode and Privileged Exec modes
Mode
To display spanning tree information, use the command:
Examples
awplus#
See the following sample command output for the example command below to display the
Output
state of the spanning tree for port1.0.23:
19.12
Description
Display information about the following port only.
The ports to display information about. A port-list can be:
a switch port (e.g. port1.2.12) a static channel group (e.g., sa3) or a
■
dynamic (LACP) channel group (e.g., po3)
a continuous range of ports separated by a hyphen,
■
e.g., port1.0.1-1.0.24 or port1.1.1-port1.1.24 or po1-po4
a comma-separated list of ports and port ranges,
■
e.g. port1.0.1, port1.1.1-1.2.24. Do not mix switch ports, static channel
groups, and LACP channel groups in the same list.
show spanning-tree
Software Reference for SwitchBlade® x908, x900 and x600 Series Switches
TM
AlliedWare Plus Operating System - Software Version 5.3.1 C613-50007-01 REV B