• If the problem still persists, use the show lacp dynamic detail command to verify
that at least one port in the link is able to communicate with the other end.
• Enable
LACP debug trace to dump LACP protocol packets, events, and timers. Look for
any error message, timeouts, failures and etc. using the debug lacp <all | packet
| event | timer> command. Use the no form of the command to stop debugging.
Traffic rate is low
• Verify the sum of the port rates on both sides using the show interface
<interface> command.
• Verify that all the ports in the LAG are in Current and Selected states using the show
lacp dynamic detail command.
• Verify the Tx and Rx rates at the edge of the bridge. Use the show interface
<interface> command.
Troubleshooting a Data Link Layer problem
98 Troubleshooting August 2013
Comments? infodev@avaya.com
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