debug dot1ag

Use this command to enable debugging of the messages sent between MPs and MEPs.

Default Disabled
Format debug dot1ag {all | ccm | events | lbm | lbr | ltm | ltr | pdu}
Mode Privileged EXEC
Parameter Description
all Debug all dot1ag message types.
CCM Configure debug flags for Continuity Check Message information. A multicast CFM PDU transmitted periodically by a MEP in order to ensure continuity over the MA to which the transmitting MEP belongs. No reply is sent by any MP in response to receiving a CCM.
LTM Configure debug flags for Linktrace Message information. A CFM PDU initiated by a MEP to trace a path to a target MAC address, forwarded from MIP to MIP, up to the point at which the LTM reaches its target, a MEP, or can no longer be forwarded. Each MP along the path to the target generates an LTR.
LTR Configure debug flags for Linktrace Reply information. A unicast CFM PDU sent by an MP to a MEP, in response to receiving an LTM from that MEP.
LBM Configure debug flags for Loopback Message information. A unicast CFM PDU transmitted by a MEP, addressed to a specific MP, in the expectation of receiving an LBR.
LBR Configure debug flags for Loopback Reply information. A unicast CFM PDU transmitted by an MP to a MEP, in response to an LBM received from that MEP.
PDU Configure debug flags for CFM PDU information.

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