Debug Mstp (Rstp And Stp) - Allied Telesis SwitchBlade x908 Series Software Reference Manual

Spanning Tree Commands

debug mstp (RSTP and STP)

Use this command to enable debugging for the configured spanning tree mode, and echo data
to the console, at various levels. Note that although this command uses the keyword mstp it
displays debugging output for RSTP and STP protocols as well the MSTP protocol.
Use the no parameter with this command, to disable spanning tree debugging.
Syntax
debug mstp {all|cli|protocol [detail]|timer [detail]}
debug mstp {packet {rx|tx} [decode] [interface <interface>]}
debug mstp {topology-change [interface <interface>]}
no debug mstp {all|cli|protocol [detail]|timer [detail]}
no debug mstp {packet {rx|tx} [decode] [interface <interface>]}
no debug mstp {topology-change [interface <interface>]}
Parameter
all
cli
packet
rx
tx
protocol
timer
detail
decode
topology-change
interface
<interface>
Privileged Exec and Global Configuration mode
Mode
Use the debug mstp topology-change interface command to generate debugging messages
Usage 1
when the switch receives an indication of a topology change in a BPDU from another device.
The debugging can be activated on a per-port basis. Although this command uses the keyword
mstp, it displays debugging output for RSTP and STP protocols as well as the MSTP protocol.
Due to the likely volume of output, these debug messages are best viewed using the terminal
monitor command before issuing the relevant debug mstp command. The default terminal
monitor filter will select and display these messages. Alternatively, the messages can be directed
to any of the other log outputs by adding a filter for the MSTP application using log buffered:
awplus(config)#
19.4
Description
echoes all spanning tree debugging levels to the console.
echoes spanning tree commands to the console.
echoes spanning tree packets to the console.
received packets.
transmitted packets.
echoes protocol changes to the console.
echoes timer information to the console.
detailed output.
interprets packet contents
interprets topology change messages
keyword before <interface> placeholder to specify an interface
to debug
placeholder used to specify the name of the interface to debug.
log buffered program mstp
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