Zte ZXR10 5900E Series - Page 124

ZXR105900ESeriesUserManual(EthernetSwitchingVolume)
FIGURE30ETHERNETNETWORKMAINTENANCEDOMAININCLUSIONRELATIONSHIPFIGURE
Routediscovery:MEPuseLTM/LTRtotracktheroutefromone
MEPtoanotherMEPorbetweenMIPs.
Faultdetection:MEPuseperiodicallysendingandreceivingCCM
informationtodetectnetworkconnection.Itmainlydetectscon-
nectionfaultandunwantedconnection(faultconnectionstatus).
Faultafrmationandisolation:Thisfunctionbelongstomanage-
mentact,managerafrmsfaultbillbyLBM/LBR,thendoesthe
isolationoperation.
Faultnotication:WhenMEPhasconnectionfault,therelevantre-
portinformationwillbesenttothedesignatedmanagementsys-
temsuchasNMSTRAPandsoon.
Networkstatusdetection:estimatenetworkconnectionstatusor
networkdelayjitterstatusthroughdetectingthepacketwithtime
stampbetweenMEPsorpackettransceiverwithcountervalue.
MP ,includesMEPandMIP ,isthesmallestentityofmanagement
layerrealizablefunction.Bycomparison,realizablefunctionof
MEPismorecomplicatedthanthatofMIPandmanagementcon-
gurationismorecomplex.Insomeextent,CFMfunctionismainly
implementedbyMEP .MEPcansend,receiveandhandleanyone
ofaboveinformation.ButMIPonlycanhandleLTMandLBMinfor-
mationandsendLTRandLBRinformation.
114CondentialandProprietaryInformationofZTECORPORATION