Verifying connectivity using IEEE 802.1ag Loopback

CFM LBM message is generated when the CFM loopback test is performed. The packet is destined to the MAC address which the loopback test intends to reach. You can verify the connectivity using the CFM loopback command.

device# cfm loopback domain md1 ma ma1 src-mep 101 target-mep 200

Following are the parameters which you can configure for the CFM loopback domain command.