Table of Contents
Advertisement
Troubleshooting a Data Link Layer problem
Clear commands
• Use the clear bridge mac command to clear all the non-static MAC entries learned
by bridge.
• Use the clear spanning-tree command to clear MSTP states.
• Use the clear gvrp state-machine [port-name] to clear the current state of
GVRP.
Debug commands
Most subsystems in the Avaya Secure Router 2330/4134 support debug tracing. This feature
can be turned on using the following commands:
• debug all
• debug dot1x <all | event | packet | timer>
• debug gvrp <all | cli | event | packet | timer>
• debug igmp <all | decode | encode | event | fsm | tib>
• debug igmp-snooping <all | event | packet | timer>
• debug lacp <all | event | packet | timer>
• debug spanning-tree <all | cli | event | packet | timer>
Use the no form of these commands to disable debugging.
Troubleshooting MSTP
The main function of MSTP is to prevent loops that redundant links create in network. So the
failure in MSTP causes loops in the network.
Troubleshooting a configuration failure
Regional Root ID is not showing as expected
• Issue the show spanning-tree command
74
Troubleshooting
Comments? infodev@avaya.com
August 2013
Advertisement
Table of Contents
Troubleshooting
