You can enable the performance monitoring responder functionality without enabling the transmission of continuity check messages (CCM). To enable the performance monitoring responder functionality without enabling CCM transmission, configure our new configuration statement sendzero-interval-ccm under the [edit protocols protocols oam ethernet connectivity-faultmanagement] hierarchy level. After you configure the statement, if the continuity-check is not enabled, CCMs are not transmitted, but are programmed to receive the CFM packets for that maintenance endpoint (MEP) level.
