• Display the Link Trace Cache.EXEC Privilege modeshow ethernet cfm traceroute-cache• Delete all Link Trace Cache entries.EXEC Privilege modeclear ethernet cfm traceroute-cacheExample of Viewing the Link Trace CacheDell#show ethernet cfm traceroute-cacheTraceroute to 00:01:e8:52:4a:f8 on Domain Customer2, Level 7, MA name Test2 with VLAN 2------------------------------------------------------------------------------Hops Host IngressMAC Ingr Action Relay ActionNext Host Egress MAC Egress Action FWD Status------------------------------------------------------------------------------4 00:00:00:01:e8:53:4a:f8 00:01:e8:52:4a:f8 IngOK RlyHit00:00:00:01:e8:52:4a:f8 Terminal MEPEnabling CFM SNMP TrapsAn SNMP trap is sent only when one of the five highest priority defects occur.Table 8. Five Highest Priority DefectsPriority Defects Trap MessageCross-connect defect %ECFM-5-ECFM_XCON_ALARM: Cross connect faultdetected by MEP 1 in Domain customer1 atLevel 7 VLAN 1000Error-CCM defect %ECFM-5-ECFM_ERROR_ALARM: Error CCM Defectdetected by MEP 1 in Domain customer1 atLevel 7 VLAN 1000MAC Status defect %ECFM-5-ECFM_MAC_STATUS_ALARM: MAC StatusDefect detected by MEP 1 in Domain providerat Level 4 VLAN 3000Remote CCM defect %ECFM-5-ECFM_REMOTE_ALARM: Remote CCM Defectdetected by MEP 3 in Domain customer1 atLevel 7 VLAN 1000RDI defect %ECFM-5-ECFM_RDI_ALARM: RDI Defect detectedby MEP 3 in Domain customer1 at Level 7 VLAN1000Three values are given within the trap messages: MD Index, MA Index, and MPID. You can reference these values against the outputof the show ethernet cfm domain and show ethernet cfm maintenance-points local mep commandsTo enable CFM SNMP traps, use the following command.• Enable SNMP trap messages for Ethernet CFM.CONFIGURATION modesnmp-server enable traps ecfmExample of Viewing CFM SNMP Trap InformationDell#show ethernet cfm maintenance-points local mep--------------------------------------------------------------------MPID Domain Name Level Type Port CCM-Status90 802.1ag
