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1、E1接口配置（E1interfaceconfiguration）TheE1interfacecanhavetwoconfigurations:Lisusedasachannelized(Channelized)E1interface.Inthephysicalinterfaceisdividedinto31timeslots,alltheslotscanbearbitrarilydividedintoseveralgroups,eachtimeslotafterusebundledasaninterface,thelogicisthesamea
2、sthesynchronousserialport,supportPPP,LAPB,framerelayandX.25linklayerprotocol.Lisusedasanonchannelized(Unchannelized)E1interface.TheinterfaceactsasaG.703synchronousserialportof2Matphysicalrate,andsupportslinklayerprotocolssuchasPPP,framerelay,LAPBandX.25.E1interfaceconfigurat
3、ionToconfiguretheE1interface,youmustfirstenterthecontrollerE1commandintheglobalconfigurationstate.commandEffectControllerE1/ConfiguringtheE1interfaceSlotistheslotnumberatwhichtheE1controllerislocated,GroupisthelinknumberfortheE1controller.Note:theE1controllerint
4、he3700seriesrouteris"controllerE10/0",andthe5000SeriesrouterhasanE1controller,thelinknumberrangeis0-0,andforthefourportE1controller,thelinknumberrangeis0-3.TheE1controllerslotnumberis1-4.Giveanexample：Router_config#controllerE10/0Router_config_controller_E1_0/0#Theconfigurat
5、iontasksfortheE1interfaceinclude:LconfigurethephysicalparametersoftheE1interface,includingframecheckmode,linecodecformatandlineclock,loopbacktransmissionmode,andsoon.Thedefaultparameterisgenerallyused.Lchannelization(Channelized)E1interfacerequiresconfigurationofchannel-grou
6、pparametersanddeterminationofslotbindingmethods.TheLnonchannelized(Unchannelized)E1interfacedoesnotneedtoconfigurethechannel-groupparameter.Lconfigurationinterface(Interface)parameter,ConfigurehowtheE1interfaceworksTheE1interfacedefaultstochannelized(Channelized)mode.Itcanbe
7、settononchannelized(Unchannelized)modeviatheunframedcommand.commandEffectUnframedConfiguredasnonchannelized(Unchannelized)modeNounframedConfiguredaschannelized(Channelized)modeGiveanexample：Router_config#controllerE10/0Router_config_controller_E1_0/0#unframedRouter_config_co
8、ntroller_E1_0/0#nounframedConfiguretheframecheckmodeoftheE1interfaceTheE1in
