8-3-PTN_PWE3技术_ATM业务仿真.

《中兴PTN仿真平台》课程主讲：林琪老师通信技术专业教学资源库深圳职业技术学院ATM业务仿真课程团队：林琪赵晓吉吴粤湘李昌斌目录ATM业务仿真01ATM基本概念（一）•ATM信元：ATMCells•虚电路：VC•VirtualCircuit•永久虚电路：PVC•PermanentVirtualCircui•交换虚电路：SVC•SwitcherVirtualCircuiATM基本概念（二）•虚电路链接:VCC•VirtualCircuiConnection•虚路径链接:VPC•VirtualPathConnection•净荷类型标识：PT1•PayloadTypeldentifier•信元丢失优先级:CLP•CellLossPriorityPWE3基本业务流程•PWE3:Pseudo-WireEmulationEdgetoEdgeATMNetworkPE2ATMServiceCE1CE2ForwardForwardATMServiceIP/MPLSPTunnelLabelPWLabelControlWordATMServiceOuterMPLSLabelInnerMPLSLabelATMNetwork注意MPLSTunnel有外层MPLS标签标识PW由内层MPLS标签标识ATM仿真模式封装模式透彻模式AAL类型连接类型封装方式N-to-1VCCCell所有AALsVC包括VPINCI,VPINCI交换，CW可选1-to-1VCCCell所有AALsVC不包括VPINCI,VPINCI交换，CW必选N-to-1VPCCell所有AALsVC包括VPINCI,CW可选1-to-1VPCCell所有AALsVC只包括VPINCI,CW必选ATMN-to-1CellMode•ATMN-to-1CellModePSNTransportHeader(OuterMPLSlabel)PWHeader(InnerMPLSlabel)0000FlagResLengthSequenceNumberVPIVCIPTICATMPayload(48bytes)…..VPIVCIPTICATMPayload(48bytes)…..N-to-1VCCATMCellTransportATMNetworkCEPEIP/MPLSATMNetworkATMNetworkATMNetworkATMNetworkATMNetworkPECECECECECEPVC:VPI3/VCI3PVC:VPI3/VCI3PVC:VPI1/VCI1PVC:VPI1/VCI1PVC:VPI2/VCI2PVC:VPI2/VCI2N-to-1VCCATMCellTransportATMNetworkCEPEATMNetworkATMNetworkATMNetworkATMNetworkATMNetworkCECECECECEPVC:VPI3/VCI3PVC:VPI3/VCI3PVC:VPI1/VCI1PVC:VPI1/VCI1PVC:VPI2/VCI2PVC:VPI2/VCI2N-to-1VPCATMCellTransportATMNetworkCEPEIP/MPLSATMNetworkATMNetworkATMNetworkATMNetworkATMNetworkPECECECECECEPVC:VPI3/VCI3PVC:VPI3/VCI3PVP:VPI1/VCI1PVP:VPI1/VCI1PVP:VPI2/VCI2PVP:VPI2/VCI2N-to-1VPCATMCellTransportATMNetworkCEPEATMNetworkATMNetworkATMNetworkATMNetworkATMNetworkCECECECECEPVP:VPI3PVP:VPI1PVP:VPI1PVC:VPI2PVP:VPI2PVP:VPI3ATMNetworkATMNetwork1to1ATMVCCCellTransport•Remote1-to-1VCCATMCellTransportPE2CE1CE2PVC:VPI1/VCI/1ForwardPVC:VPI2/VCI/2PATMNetworkCE1ATMNetworkPEPVC:VPI1/VCI/1PVC:VPI2/VCI/2Local1-to-1VCCATMCellTransportPE1ATMNetworkATMNetwork1to1VPCATMCellTransport•Remote1-to-1VPCATMCellTransportPE2CE1CE2PVP:VPI1ForwardPVP:VPI2PATMNetworkCE1ATMNetworkPEPVP:VPI1PVP:VPI1Local1-to-1VPCATMCellTransportCE2VPI/VCI映射ATMSwitch1ATMSwitchATMSwitch2ATMSwitch1IP/MPLSATMSwitch1VPI:VCI=1/100VPI:VCI=2/200PE2PE1VPI:VCI=1/100VPI:VCI=2/200ATM/IMA仿真业务应用E1CESoPSNSAToPAbisTDMPWE3MPLSPPP/ML-PPPHDLCPOS/E1AbisTDME1AbisTDME1/chSTM-1AbisTDMPWE3PSNMACGESTM-1TunnelLineInterfaceLineInterfaceNetworkInterfaceE1E1------1+1/1:1APSE1/POS/GE/chSTM1PoC3PoC1BSC3GNodeBE1E1E13GNodeB通信技术专业教学资源库深圳职业技术学院谢谢主讲：林琪老师