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Two operational modes: service model 1 (client/server) service model 2 (peer). Two stack modes: EVC only EVC & MS-PW. UNI-N Trib Card in PE node. PW functions not used in EVC only mode. UNI-N Trib Card service model 1. UNI-N Trib Card service model 2. client. EVC & PW. PW MIP.
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Two operational modes: service model 1 (client/server) service model 2 (peer) Two stack modes: EVC only EVC & MS-PW UNI-N Trib Card in PE node PW functions not used in EVC only mode UNI-N Trib Card service model 1 UNI-N Trib Card service model 2 client EVC & PW PW MIP Client MIP Client MIP PW MIP EVC MIP EVC MIP EVC TC PW TC Client TC Client specific processing Client specific processing EVC NCMsp MEP PW NCMsp MEP EVC TCMsp MEP PW TCMsp MEP EVC TCMno MEP PW TCMno MEP EVC TCMno MEP PW TCMno MEP EVC / EVC & PW EVC / EVC & PW NCM: network connection monitoring, TCM: tandem connection monitoring, no: network operator, sp: service provider
I-NNI Line Card in PE node PW functions not used in EVC only mode • Two stack modes: • EVC only • EVC & MS-PW EVC / EVC & PW EVC / EVC & PW PW MIP PW MIP EVC MIP EVC MIP mp EVC TC mp EVC TC EVC TCMps MEP PW TCMps MEP EVC TCMps MEP PW TCMps MEP mp EVC TCMlc MEP mp EVC TCMlc MEP Bypass PW functionality in EVC only mode PW NCM MEP PW NCM MEP PW TCMno MEP PW TCMno MEP LSP NCM MEP EVP NCM MEP Section NCM MEP one of the two tunnel technologies will be active INNI Line Card Type 1 Section NCM MEP INNI Line Card Type 2 lc: link connection, no: network operator, ps: protection switch
E-NNI line card in PE node Additional TCM/Segment endpoint EVC / EVC & PW EVC / EVC & PW PW TCMno MEP PW TCMno MEP EVC TCMno MEP EVC TCMno MEP PW MIP PW MIP EVC MIP EVC MIP mp EVC TC EVC TCMps MEP PW TCMps MEP EVC TCMps MEP PW TCMps MEP mp EVC TCMlc MEP mp EVC TCMlc MEP PW NCM MEP PW NCM MEP PW TCMno MEP PW TCMno MEP LSP NCM MEP EVP NCM MEP Section NCM MEP ENNI Line Card Type 1 Section NCM MEP ENNI Line Card Type 2 lc: link connection, no: network operator, ps: protection switch
Two tunnel/path layers EVP LSP I-NNI line card in P node EVP / LSP NNI Line Card LSP MIP EVP MIP one of the two tunnel technologies will be active Section NCM MEP
Supporting MEP/MIP functions by MEP/MIP resources • EVC and PW MEP functions are supported by MEP resources • A MEP resource can be assigned to an EVC or PW transport entity • A MEP resource can be configured to generate/process Ethernet VLAN OAM or MPLS-TP PW or LSP (for PW Segment) OAM • EVC and PW MIP functions are supported by MIP resources • A MIP resource can be assigned to an EVC or PW transport entity • A MIP resource can be configured to generate/process Ethernet VLAN OAM or MPLS-TP PW OAM • EVP and LSP MEP functions are supported by MEP resources • A MEP resource can be assigned to an EVP or LSP transport entity • A MEP resource can be configured to generate/process Ethernet VLAN OAM or MPLS-TP LSP OAM • EVP and LSP MIP functions are supported by MIP resources • A MIP resource can be assigned to an EVP or LSP transport entity • A MIP resource can be configured to generate/process Ethernet VLAN OAM or MPLS-TP LSP OAM