MSTP以太网专线测试指标

1、MSTP以太网专线的测试方案和参数设置MSTP以太网专线是利用传统的SDH网络承载，在用户端采用MSTP设备为用户提供以太网接口的专线业务。这种业务的特点是：用户接口使用方便；能够灵活提供2M100M的带宽；在骨干传输网上带宽独享，可以保证传送质量。MSTP以太网专线的主要性能测试指标MSTP以太网专线的性能测试指标主要是：传输时延、丢帧率、吞吐量。传输时延：是指测试仪表收到帧的时间与发出这一帧的时间之差。假设仪表发出某一帧的时间为Ta,收到这一帧的时间为Tb,则时间Delay=Tb-Ta。传输时延包括MSTP设备处理时延、SDH设备处理时延和信号传输时延。在城域网内（短距离）应用时,MSTP

2、以太网专线的传输时延主要是设备时延。一般MSTP设备处理时延在1ms以内，每台SDH设备引入的处理时延在0.5ms以内。在长途网内（长距离）应用时,MSTP以太网专线的传输时延主要是信号传输时延，一般按照5ms/千公里计算。MSTP设备的处理时延与以太帧的长度是正相关的关系。以太帧越长,MSTP设备的处理时延越大。丢帧率：是指测试仪表发出帧数与收到帧数之差除以仪表发出帧数，再乘以100%。公式表示如下：（仪表发出帧数-收到帧数）/仪表发出帧数*100%。不同帧长下的丢帧率会有所变化，随着帧长的增加，丢帧率会增加。指标要求：以太帧长度为64字节时，测试15分钟，丢帧率应为0。吞吐量：是指在没有丢

3、帧的情况下，整个通道的最大数据速率，一般用bit/s或者帧/秒表示。以帧长度64字节为准，根据用户的业务带宽需求，设置相应的VC通道个数。对照表如下：业务带宽与通道配置对应关系业务带宽(Mbps)配置的VC通道个数2VC-12-lv4VC-12-2v6VC-12-3v8VC-12-4v10VC-12-5v15VC-12-7v20VC-12-10v25VC-12-12v30VC-12-14v35VC-12-17v40VC-12-19v45VC-12-21v50VC-12-23v/VC-3-1v60VC-12-28v70VC-12-33v80VC-12-37v90VC-12-42v100VC-12

4、-46v/VC-3-2v150VC-4-1v300VC-4-2v450VC-4-3v600VC-4-4v(大于4个VC4,建议采用WDM技术)750VC-4-5v900VC-4-6v1000VC-4-7v测试方案上述三个指标均采用环回测试方法。测试方案如下：点到点MSTP以太网专线业务测试方案图业务类型根据城域以太网论坛(MetroEthernetForum,MEF)的技术规范，以太网的业务类型分为三大类：点到点的专线业务EthernetLine(E-Line),多点到多点的虚拟专网业务EthernetLAN(E-LAN),和点到多点的业务(E-TREE)。每一种业务类型对应多个属性，每个属性

5、又由多个参数规定。这样，业务参数确定了业务属性，业务属性确定了业务类型。每一种业务类型的需求主要体现在：UNI接口的业务属性和EVC(EthernetVirtualConnection)的业务属性。UNI接口的业务属性有：UNI业务属性说明UNI标识符任意的文本字符串，表示UNI接口名字。物理介质符合IEEE802.3-2002标准的物理接口速度10Mbps,100Mbps,1Gbpsor10Gbps双工模式全双工或者自协商MAC层要求符合IEEE802.3-2002标准ServiceMultiplexingYesorNo.MUSTbeNofAlltoOneBundlingisYes.如果全合

6、一捆绑是Yes，业务复用必须是No。Bundling（捆绑）YesorNo.MUSTbeNofAlltoOneBundlingisYes如果全合一捆绑是Yes，捆绑必须是No。AlltoOneBundling（全合一捆绑）YesorNo.MUSTbeNofBundlingorServiceMultiplexingisYes如果捆绑或者业务复用是Yes，全合一捆绑必须是No。UNIEVCID任意的文本字符串，表示UNI接口中的EVCUNI业务属性说明CE-VLANID/EVCMapMappingtableofCE-VLANIDstoEVCsattheUNI.MaximumnumberofEVCs

7、MUSTbeaninteger=1BandwidthProfilePerIngressUNIOPTIONAL.Ifsupported,MUSTspecifyvCIR,CBS,EIR,EBS,CM,CFBandwidthProfilePerEVCOPTIONAL.Ifsupported,MUSTspecifyBandwidthProfilePerCoSIdentifierOPTIONAL.Ifsupported,MUSTspecifyandMUSTsupportandCoSIdentifiersLayer2ControlProtocolProcessingBridgeBlockofprotoco

8、lswithdestinationMACaddresses0 x0180c2000000through0 x0180c200000f.Foreachprotocol,MUSTspecifyoneof:Peer,Discard,orPasstoEVC.GARPBlockofprotocolswithdestinationMACaddresses0 x0180c2000020through0 x0180c200002f.Foreachprotocol,MUSTspecifyoneof:Peer,Discard,orPasstoEVC.AllLANsBridgeManagementGroupprot

9、ocolswithdestinationMACaddress0 x0180c2000010.Foreachprotocol,MUSTspecifyoneof:Peer,Discard,orPasstoEVC.说明：1、ServiceMultiplexing：业务复用。指在同一端口上有多个EVC（EthernetVirtualConnection）。每一条EVC代表一条业务，所以叫业务复用。2、Bundling：捆绑。指在一条EVC上传送多个VLAN的帧。3、AlltooneBundling：全合一捆绑。指整个端口所有的VLAN捆绑到一条EVC上。也就是说此时整个端口只有一条EVC，没有业务复用

10、。EVC的业务属性有：EVCServiceAttribute说明EVCType包括点到点、点到多点、多点到多点UNIList列出与本条EVC相关的所有UNI的标识符。CE-VLANIDPreservationYesorNo（客户的VLANID是否保留）CE-VLANCoSPreservationYesorNo（客户的业务分类是否保留）UnicastServiceFrameDeliveryDeliverUnconditionallyorDeliverConditionally.IfDeliveredConditionally,MUSTspecifythedeliverycriteria.EVCS

11、erviceAttribute说明MulticastServiceFrameDeliveryDeliverUnconditionallyorDeliverConditionally.IfDeliveredConditionally,MUSTspecifythedeliverycriteria.BroadcastServiceFrameDeliveryDeliverUnconditionallyorDeliverConditionally.IfDeliveredConditionally,MUSTspecifythedeliverycriteria.Layer2ControlProtocolPr

12、ocessing(onlyappliesforL2CPspassedtotheEVC)BridgeBlockofprotocolswithdestinationMACaddresses0 x0180c2000000through0 x0180c200000f.ForeachprotocolpassedtotheEVC,MUSTspecifyoneof:DiscardorTunnel.GARPBlockofprotocolswithdestinationMACaddresses0 x0180c2000020through0 x0180c200002f.Foreachprotocolpassedt

13、otheEVC,MUSTspecifyoneof:DiscardorTunnelAllLANsBridgeManagementGroupprotocolswithdestinationMACaddress0 x0180c2000010.ForeachprotocolpassedtotheEVC,MUSTspecifyoneof:DiscardorTunnel.ServicePerformanceForeachCoS,MUSTspecifyaCoSIdentifier.MAYspecifyaFrameDelayvalue,aFrameDelayVariationvalueandaFrameLos

14、svalue.说明：EVC是指以太网虚拟连接(EthernetVirutalConnection),每一条EVC表示一条以太网专线业务，可能是点到点、点到多点、多点到多点的连接。每一种业务类型的业务属性通过UNI接口参数和EVC的参数体现。具体的业务类型有：EPL：(EthernetPrivateLine)高度透明的专线业务。不允许在UNI接口上进行业务复用，所有的业务帧映射到一条EVC中，每条业务一个独立的端口。EPL业务是使用最广的业务类型。EPL业务的参数设置如下：(包括UNI业务属性和EVC业务属性两张表格)EPL业务类型的UNI属性表格UNIServiceAttributeServi

15、ceAttributeParametersandValuesUNIIdentifierArbitrarytextstringtoidentifytheUNI.任意字符串PhysicalMediumIEEE802.3-2002PhysicalInterface错误!未找到引用源。Speed10Mbps,100Mbps,1Gbpsor10GbpsModeMUSTbeFullDuplex必须是全双工MACLayerIEEE802.3-2002错误!未找到引用源。UNIServiceAttributeServiceAttributeParametersandValuesServiceMultiplex

16、ingMUSTbeNo不进行业务复用BundlingMUSTbeNo不捆绑AlltoOneBundlingMUSTbeYes全合一捆绑UNIEVCIDArbitrarytextstringtoidentifytheEVCinstanceattheUNI任意字符串，用来在UNI接口上标识EVCCE-VLANID/EVCMapAllServiceFramesattheUNIMUSTmaptoasingleE-LineServicetypeEVC在UNI接口上所有的业务帧必须映射到一条E-Line类型的EVCMaximumnumberofEVCsMUSTbe1只有一条EVCBandwidthProf

17、ilePerIngressUNICIR:MUSTbelargestServiceFramesizeEIR:MUSTbe0EBS:MUSTbe0CM:MUSTbeFal$eolor-blind)CF:NotSpecifiedLayer2ControlProtocolProcessing见下面专门的表格说明L2CP的处理EPL业务类型的EVC属性表格EVCServiceAttributeServiceAttributeParametersandValuesEVCTypeMUSTbePoint-to-Point必须是点到点UNIListMUSTlistthetwoUNIsassociatedwith

18、theEVC.列出与此EVC相关的两个UNI端口CE-VLANIDPreservationMUSTbeYes保留客户设备的VLANIDCE-VLANCoSPreservationMUSTbeYes保留客户设备的CoSUnicastServiceFrameDeliveryMUSTDeliverUnconditionally无条件转发MulticastServiceFrameDeliveryMUSTDeliverUnconditionally无条件转发BroadcastServiceFrameDeliveryMUSTDeliverUnconditionally无条件转发Layer2ControlP

19、rotocolsProcessing(onlyappliesforL2CPspassedtotheEVC)见下面专门的表格说明L2CP的处理ServicePerformanceOnlyoneCoSisREQUIRED.ACoSIDofMUSTbespecified.FrameDelay,FrameDelayVariationandFrameLossRatioMUSTbespecified.EVPL：(EthernetVirtualPrivateLine)以太网虚拟专线。允许在UNI接口上进行业务复用。业务帧的传送不是完全透明的，二层控制协议的业务帧全部被丢弃。EVPL业务的参数设置如下：（包括

20、UNI业务属性和EVC业务属性两张表格）EVPL的UNI业务属性表格UNIServiceAttributeServiceAttributeParametersandValuesUNIIdentifierArbitrarytextstringtoidentifytheUNI.任意的字符串PhysicalMediumIEEE802.3-2002PhysicalInterface错误!未找到引用源。Speed10Mbps,100Mbps,1Gbpsor10GbpsModeSHOULDbeFullDuplex必须是全双工MACLayerIEEE802.3-2002错误!未找到引用源。ServiceMu

21、ltiplexingSHOULDbesupported.WhenmorethanoneEVCismultiplexedataUNI,AlltoOneBundlingMUSTbeNo.当在UNI接口上复用超过1条EVC时，全合一捆绑必须是No。BundlingYesorNo.IfYes,thenCE-VLANIDPreservationMUSTbeYes.MUSTbeNo讦AlltoOneBundlingisYes如果选择Yes，那么CE-VLANIDPreservation必须是Yes。如果全合一捆绑是Yes，那么捆绑必须是No。AlltoOneBundlingYesorNo.IfYes,th

22、enCE-VLANIDPreservationMUSTbeYes.MUSTbeNo讦BundlingorServiceMultiplexingisYes.如果选择Yes，那么CE-VLANIDPreservation必须是Yes。如果捆绑或者业务复用是Yes，那么全合一捆绑必须是No。UNIEVCIDArbitrarytextstringtoidentifyeachEVCinstance任意字符串，标识每一条EVC。CE-VLANID/EVCMapMappingtableofCE-VLANIDstoE-LineServicetypeUNIEVCIDs.MaximumnumberofEVCs=1

23、BandwidthProfilePerIngressUNINoorBandwidthProfilePerEVCNoorBandwidthProfilePerCoSIdentifierNoorLayer2ControlProtocolProcessing见下面专门的表格说明L2CP的处理EVPL的EVC业务属性表格EVCServiceAttributeServiceAttributeParametersandValuesEVCTypeMUSTbePoint-to-Point必须是点到点UNIListMUSTlistthetwoUNIsassociatedwiththeEVC.CE-VLANIDP

24、reservationYesorNoCE-VLANCoSPreservationYesorNoUnicastServiceFrameDeliveryDeliverUnconditionallyorDeliverConditionally.IfDeliveredConditionally,MUSTspecifythedeliverycriteria.MulticastServiceFrameDeliveryDeliverUnconditionallyorDeliverConditionally.IfDeliveredConditionally,MUSTspecifythedeliverycrit

25、eria.BroadcastServiceFrameDeliveryDeliverUnconditionallyorDeliverConditionally.IfDeliveredConditionally,MUSTspecifythedeliverycriteria.Layer2ControlProtocolsProcessing(onlyappliesforL2CPspassedtotheEVC)见下面专门的表格说明L2CP的处理ServicePerformanceMAYsupportnone,oneormoreCoS.Ifsupported,aCoSID,FrameDelayandFra

26、meLossRatioMUSTbespecified.FrameDelayVariationMAYbespecified.EVPL和EPL专线业务对于二层控制协议的处理需求ProtocolEVPLEPLSpanningTreeProtocol(STP),RapidSpanningTreeProtocol(RSTP),MultipleSpanningTreeProtocol(MSTP)SHOULDDiscardMUSTTunnelPAUSE(802.3x)SHOULDDiscardMUSTNotTunnelSHOULDDiscardLinkAggregationControlProtocol(L

27、ACP)SHOULDDiscardSHOULDTunnelMarkerProtocolSHOULDDiscardSHOULDTunnelAuthentication(802.1x)SHOULDDiscardSHOULDTunnelAllLANsBridgeManagementGroupBlockofProtocolsSHOULDDiscardMUSTTunnelGenericAttributeRegistrationProtocol(GARP)BlockofProtocolsSHOULDDiscardMUSTTunnelEPLAN(EthernetPrivateLAN)以太网专用局域网。每个端

28、口只有一条业务。EVPLAN(EthernetVirtualLAN)以太网虚拟专用网。允许进行业务复用，一个端口可以有多条业务。EP-Tree(EthernetPrivateTree)以太网专用树形网。每个端口只有一条业务。EVP-Tree(EthernetVirutalPrivateTree)以太网虚拟专用树形网。允许进行业务复用，一个端口可以有多条业务。EPL和EVPL都是点到点的EVC，EPLAN和EVPLAN都是多点到多点的EVC,EP-Tree和EVP-Tree都是点到多点的EVC。EPLAN、EVPLAN、EP-Tree、EVP-Tree都需要网络中有设备支持二层交换功能。目前可以

29、参照的规范比较少，在应用时需要制定细化的各项参数。业务管理模式根据MEF10.1,有三种业务管理模式：1、基于端口：Port-based。即只管理整个UNI物理端口的带宽。2、基于VLAN：Port/VLAN-based。即管理到端口下的每个VLAN对应的EVC的带宽。3、基于CoS：Port/VLAN/CoS-based。即管理到VLAN下的每个CoS对应的带宽。无论采用哪种模式，都有一个带宽配置文件(BandwidthProfile)指配到相应的端口、VLAN或者CoS。带宽配置文件包含的参数如下：CIR:CommittedInformationRate，保证信息速率，单位bit/s。是指

30、在保证性能指标要求的情况下，传送的业务帧的平均比特速率。CBS：CommittedBurstSize，认可突发长度，单位Byte。即保证传送的最大MTU长度。对于以太网来说要求大于或等于1522字节。EIR：ExcessInformationRate，额外信息速率，单位bit/s。定义了在不保证性能指标要求的情况下，传送的业务帧的平均比特速率。EBS：ExcessBurstSize，额外突发长度，单位字节。限制一个突发业务帧能够传送的最大字节数。CF：CouplingFlag，耦合标志，取值0或1。在两种传送速率算法中做出选择，仅对黄色帧起作用。当CF=0，黄色帧的比特速率不能超过EIR；当C

31、F=1，黄色帧的速率与绿色帧相关，两者之和最大不能超过CIR+EIR。在两种情况下，黄色帧的突发长度都不能超过EBS。CM：ColorMode，色彩模式。取值color-blind或者color-aware。Color-blind不分辨颜色，color-aware分辨颜色。进行业务管理的时候，每一个业务帧都会根据UNI端口、EVC、或者CoS使用一个带宽配置文件,带宽管理算法根据带宽配置文件的6个参数:CIR、CBS、EIR、EBS、CF、CM,把每一个业务帧分到三类颜色中的一种。三种颜色包括绿色、黄色、红色。每一个业务帧必定属于三种颜色帧中的一种，绿色帧的等级最高，是保证传输的帧，红色帧的等

32、级最低，是最先被丢弃的帧，不保证传送质量。ITU建议中对于以太网专线参数的规定ITU建议中对于以太网参数的规定是MEF规定的参数的子集，两者的区别不大。对于EPL业务类型，业务属性的区别如下：TableI.2/G.8011.1/Y.1307.1-E-LineservicetypeUNIserviceattributerequirementsforMEFEthernetprivatelineimplementedwithG.gOlLl/Y.1307.1EPLMEFUNIservkeattributeMEFserviceattributeparametersandvaluesG.8011/Y.13

33、07UNIattributeG.8011.1/Y.1307.1valueUNIidentifierArbitraiyte*xtstungtoidentifytheUNIUNIIDArbitrarytextstringtoideatifvtheUNIJPhysicalmediumIEEE8023-2002PhysicalIntexfacePHYmediumDefinedinITU-TRec.G.8O12/Y.13O8Speed10Mbits,100Mbit/s,1GbiVsor10Gbit/sPHYspeed10Mbits,100Mbitzss1Gbit/sor10GbitsModeMI7STb

34、eFullDuplexPHYmodeFullDuplexMAClayerIEEE802.3-2002MACserviceIEEE802.3-2002SexvicemultiplexingMVSTbeNoMultiplexedaccessNoUNIEVCIDArbitrarytextstxmgtoidentifyeachEVCinstanceUNIECIDAibitraivtextstrms：todJidentifyeachECCEATANID/EVCmapAllCEATANIDsattheUNIMUSTmaptotheE-LineServicetypeEVC.VLANmappingNoMaxu

35、uumnumberofEVCsMVSIbe1(Note1)BundlingMVSTbeNoBundlinsall-to-oneAll-tc-onebundlingMVSTbeYesBundlinsall-to-oneIngressbandwidthprofileperingressUNICIR:MUSTbe-laisestwServiceFramesizeECbandwidthprofileCIRandCBSLayer2controlprotocolprocessingSHOULDdiscardPAUSESHOULDpassLACP,LAMP,802.1XH：STpassSTRRSTP.MST

36、P.AULANsBridgeManagementGroup,GARPL2controlpiotocolprocessing(Note2)PAUSE-blockLACPIAMP-pass33reseivedaddresses一passNOTE1一EPLisdefinedaspoint-to-pcintsexviceNOTE2一Theyaretheingressactions.Validactionsperprotocoloningressandegressarede五ned.inTables.8-2,8-3,and8-4.TableI.l/G.8011.1/Yr.1307.1-E-Lineser

37、vicetypeEYCserviceattributerequirementsforMEFEthernetprivatelineimplementedwithG.8011.1/Y.1307.1EPLMEFEVCsernceattributeNIEFserviceattributeparametersandvaluesG.801LT.1307ECattributeG.8011.1/Y.1307.LvalueEVCtypeMLSTbepoint-to-pointNetworkconnectivitypoint-to-pointLinktypededicatedUNIlistMUSTlistthet

38、woUNIsassociatedwiththeEVC.UNIlistArbitrarytextstringtoidentifytheUNIsCEATANIDpreservationMUSTbeYesPreservation-VLANYesCEVLANCoSpres.en*ationMUSTbeYesPreservationCoSYesMETEVCserviceattributeMEFserviceattributeparametersmidvaluesG.8011/Y.1307ECfittributeG-801L1Y.BO7Jml口靶UnicastsercefiHinedeliveiyMUST

39、deliverlinconditiotiallyTransfercharacteristics-ndclressDeliverunconditionallyMulticastsetvicefrsmedelixpetyMUSTdeliv-erlinconditiotMllyBroadcastsetviceframedeliveiyMUSTdeliv-ernnconditionally(Notea)-Transfercharacteri&tics一diopprecedenceNetipplicfitiLeLayi2coutrclpfotc-calpfoeyjug(onlyappliesforL2C

40、Ppae-dtoth-eEVC)SHOULDdisemdPAUSESHOULDtunnelLACP,LAM?,30LLXMUSTtunnelSTP,RSTP.MSTP,.J1LAZVsBridgeManagementGroup,GAR?UNIL2contiolprotocolpfu駛沖ugPAUSE-blockLACP/L.AMP-ps33reseivedaddies&epassEVCperfbruianceOuIyCqSi;REQUIRED.ACoSIDof-EVOMUSTbespecified.Finmedelay.Friinied已layVanarionandfrjmeIo5.slitr

41、icMUSTbespecifiect.(Nte1)(Noteb)-Customeiseparatio口(Noteb)-Seni.ceinstancetepaiatioupatialNoteu)-Connectiviiymotkitoniig：proactive,on-demand(Notec)-SurLivabilLtyNcnerSeiver-specificMITNotes:yQTE-NetspecifiedbyMEF.buthaudltd11147Ikirlyby1VCpexfoimcuice.NOTEb-Handledimplicitlyby王pexfoamaibcepnram)eter

42、stlicitpieentrliesliarin吕ofre&cuiceNOTEc-Meequi/alentG.80ll.T.1307Notes:NOTE1-NotdefinedinITU-T艮sc.G.SD1l.Y.Uu.DependsonservetLayr.对于EVPL业务类型，业务属性的区别如下:TableI.2/G.8011.2/Y.1307.2一E-lineservicetypeUNIserviceattributerequirementsforAfEFEthernetvirtualprivatelineimplementedwithG.8011.2/Y.1307.2EVPLMEFU

43、NIsen-iceattributeXEFseruceattributeparametersandvaluesG.8011.Y.1307UNIattributeG.8011.2.Y.1307.2valueUNIIdenrifieiArbitraivtex:suingtoidenrifytheUNIUNIDArbitrajytextstiuigtoidentifytheUNIPhysicalMediumIEEE802.3-2002PhysicalIntexlacePHYMediumDefinedinITU-TRec.G.S012.Y.1308Speed10Mbits,100Mbits,1Gbit

44、soi10GbitsPHYSpeed10Mbits,100Mbits,1Gbitsor10GbitsModeMUSTbeFullDuplexPHYModeFullDuplexMACLayerEEE802.3-2002MACServiuIEEES02.3-2005SemceMulriplexuigSHOULDbesupported.WhenmorethanoneEVCismultiplexedataUNI,AlltoOneBundlingMUSTbeNo.MuldplexedaccessNo_EVPLtype2Yes-EVPLtype1,3UNIEVCArbitraivtesuingtoiden

45、rifyeachEVCinstanceUNJECIDAi*bitrajytextsuingtoidentifyeachECCEVLANE)FEVCMapMappinstableofCEATANIDstoE丄皿SeivicetypeUNIEVCIDs.VLANMappingEVPLtype1亠工。EVPLtype2-YesorNoMaximumnunibeiofEVCM21(Ng1)BimdlingYesorNo.IfYes,3CEVLANIDPieseivationMUSTbeYes.MUSTbeNoifAlltoOneBundlingisYesBundlingEVPLtype1亠NoEVPL

46、type2-all-to-oneAlltoOneBundlingYesorNo.IfYes,ienCEVLANIDPieseivationMUSTbeYes.MUSTbeNoifB-ondlmgoiServiceMxilriplexingisYes.IngressBandwidthProfilePerIngjessUNINoor=：CIR,CBS.EIR.EDS.CMCFEC3andwidthProfileentCBS,EIR.EBSLayer2ControlProtocolPiccesdngSHOULDdiscardPAUSE,MUSTnottunnelSHOULDdiscaidLACP.L

47、AMP.802.1SHOULDdiscaidSTP.RSTP.MSTP,AULANsBndgeManagementGroup.GARPL2Controlpioxocolprocessing(No2)EVPLtype1,3-blockallalsomayprocessS02.1X.802.1AB,slowpiorocolsEVPLtype2:PAUSE-block33resexvedaddiesses802.1乂802.1AB,slowprotocols-pass,blockorprocessNOTE1一EVPLisdefined3Spoinr-to-pomtseivicewithnolimit

48、onthentimbeiofEC.NOTE2一Thesearetheingressacrions.ValidactionsperL2controlprotocolonmgiessandegxesaiesummarizedheieandaieaiedeailvdefinedinTablesS-2,S-3and8-4.TableI.1/G.80L1.2/Y.13D7.2-E-lineserncetypeEVCseiviceattiibuterequirementsforMEFEthernetvirtualprivatelineimplementedwithG.8011.2.Y.1507.2EVPL

49、MEFEVCsemeeattributeMEFserraeattributeparamerersLindvainerG.SOai/Y.IJO?ECattributeG.801L2jYJ3072valueZrCTypeMU&Tbe?o；nt-ro-PQkiCNetwoACounectivitypoint-to-pointLiiiktypeDedjczted-三VFLtype2Shaiied_EVPLtyp色1,3U?IliLtMU&TKtLenvoUNIsassociatedwiththeEVC.UNILluArbitraiyte?rtstrin已toidetirifvlieUNECEAT-AN

50、IDpLeseiutictn.YesotrNoPi-eseri-ation-VLANYesorNoCEATANCeS?1总知询icn.YesctrNoPieseritiGn.-CdSYesorNoUidcastSendeeFrameDeliveryDeliveiUncDisdjticnaLLyorZJelivEiCcnditiouaLLy.IfZfelivaiedCojiditionally,MUSTspecifythede】ivEryeliteria.TransfefdwafteTLSticsadjdiiess-DeliverwucanditionaLly.FdtEVPLtype1.3may

51、bedEilivEiedccaditianallyaswell.MulticastSei;iceFrameDeliveryDeliva-UncDuditianaLLyorDeliveiCcndiiiouaLLy.IfZfelivaiedCoiiditioiially,MUSTspecifythedelLvery8mteria.BroadcastSeivieeFrarcjeDelherpDeliva-UncDsditianaLLyorDeliveiCcndiiiouaLLy.IflivaiedCoiiditLOELally,MUSTspecifythedelLvery8mteria.(NotEa

52、)TrausfisfdmacteristicsdjoppiBLedEucedioprasdomlyordropcondinouadepeudizEoilCIRandEIRpcramEteTsLayer2CantrolPiotocolPlDcessinE(oulyappliesforL2CPpassedtotbeEVC)&HOITEdixaidPAUSE.MUSTnotrjizeSHOITEdinaidLA匸W1AM?.S02.1&HOLTEdixaidST?.R5TP.MSTP.AULAN:EndiEMjaEELoeu?Group.GAR?UNIL2ContLolpixstocDlpiocessiiiE(Note2EVPLtype1；.3-blockall