ZXR102900ESeriesCongurationGuide
lLoopbackMessage(LBM):AunicastCFMprotocoldataunit.Itissenttoaspecied
MPfromanMEP ,expectedtoreceiveanLBRmessage.
lLoopbackReply(LBR):AunicastCFMprotocoldataunit.ItissentbytheMPreceiving
anLBMasthereplytotheLBM.
Withtheveprotocolmessageslistedabove,CFMimplementsthefollowingfunctions:
lDetectingfaults:MEPdetectsnetworkconnectivityfaultsbyperiodicallysending
andreceivingCCMmessages.Thefaultsincludeconnectionfailureandunwelcome
connection(errorconnection).
lNotifyingfaults:AfterMEPdetectsaconnectivityfault,itsendsaproperalarmtothe
speciedmanagementsystem,forexample,trapmessagesofSNMP .
lLocatingapath:MEPlocatesandtracesapathfromanMEPtoanotherMP(including
MEPandMIP)byusingLTM/LTRmessages.
lConrmingandseparatingafault:Thisisanadministrativefunction.Thenetwork
managerconrmsthefaultthroughLBM/LBRmessagesandseparatesthefault.
Conguringa802.1AGCommand
802.1AGconfigurationincludesthefollowingcommands:
CommandFunction
zte(cfg)#cfm{disable|enable}Enables/disablestheCFMfunction.
zte(cfg)#createcfmmd-session<1-16>name<string>level<0-7>
CreatesaCFMmd
zte(cfg)#createcfmmd-session<1-16>ma-session<1-32>name<string>CreatesaCFMma
zte(cfg)#createcfmmd-session<1-16>ma-session<1-32>mep-session
<1-64>mep-id<1-8191>direction{down|up}
CreatesaCFMlocalmep
zte(cfg)#createcfmmd-session<1-16>ma-session<1-32>mip-session
<1-64>name<string>
CreatesaCFMmip
zte(cfg)#createcfmmd-session<1-16>ma-session<1-32>rmep-session
<1-64>rmep-id<1-8191>remote-mac<hh.hh.hh.hh.hh.hh>
CreatesaCFMremotemep
zte(cfg)#cfmmd-session<1-16>ma-session<1-32>primary-vlan
<1-4094>
SetstheprimaryVLANwithincfmma
zte(cfg)#cfmmd-session<1-16>ma-session<1-32>ccmtime-interval
<4-7>
Setstheintervalthatccmpacketsof
mepwithincfmmaaresent.
zte(cfg)#cfmmd-session<1-16>ma-session<1-32>ccmmd-name{absent
|disable|present}
SetsthewaytollintheMEGIDeld
inacfmccmmessages.
zte(cfg)#cfmmd-session<1-16>ma-session<1-32>mep-id<1-8191>
state{disable|enable}
Setsthestatusofthecfmmepprotocol.
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SJ-20120409144109-002|2012-07-02(R1.0)ZTEProprietaryandCondential