IS-IS路由协议中文教程

IS-ISv1.0Chapter0PrefaceStatementBSCIBuildingScalableCiscoInternetworksConfiguringIS-ISProtocolIS-ISIS-ISOSITCP/IPIS-ISOSPFCiscoSystemBSCIStudentGuideOutline1OSIIS-IS2IS-IS3IS-ISIPOSI4IS-ISAboutauthorClimberfromChangchunCityJilinProv.SurfonthenetforsixyearsWanderregularlyintheciscoforumofneteaseDiscussioniswelcome!e-mail:[e-mail]@163.comDeeplyappreciatedmysecretaryforherhelp!☺☺☺☺☺☺☺☺☺☺Chapter1IntroductiontoOSIProtocolOSIISOOSIISOInternationalOrganizationforStandardizationOSIOpenSystemInterconnectionISOTCP/IPTCP/IPOSIISOOSIITU-TOSITCP/IPOSITCP/IPOSIOSIHierarchicalNSAPNetworkServiceAccessPointOSITCP/IPIP+ESEndsystemISIntermediateSystemAreaDomainAreaAreaDomainAreaDomainDomainAreaOSPFAreaESESISillustrateONLYtheportionaroundwithredblockCLNSConnectionlessNetworkServiceCLNPConnectionlessNetworkProtocolCMNSConnection-ModeNetworkServiceCONPConnection-OrientedNetworkProtocolTCP/IPTCPUDPOSICLNPCLNSCONPCMNSOSICLNPIPCONPIPTCP/IPCLNPCLNProutingprotocolsCONPX.25OKJohnChapter2BasicIS-ISRoutingProtocolIS-ISIS-IS1Level-0ESISDiscoveryProtocolTCP/IPARP2Level-1OSPFO3Level-2OSPFOIA4Level-3TCP/IPBGPASLevel-1Level-2OSI1IS-ISOSITCP/IPDualMode2ISO-IGRPCLNSOSIOSICLNS3StaticCLNSroutesOSITCP/IPStaticrouteLABIS-ISOSPFIS-ISOSPFSPFTCP/IPIS-ISOSPFISPIS-ISOSPFOSPFABRIS-ISOSPFBackboneVirtual-LinkIS-ISOSPFLSAIS-ISLSAOSPFIS-ISDemandCircuitOSIAddressOSINSAPOSIStudentGuideSoGoahead,don’tgiveitup!NSAPNetworkServiceAccessPointNSAPIDPInter-DomainPortionTCP/IPDSPDomainServicePortionTCP/IPIDPAFIAuthorityandFormatIDIDIDIInter-DomainIDIDDSPHODSPHighOrderDSPDSPTCP/IPSIDSystemIDIDTCP/IPHSELNSAP-SelectorNSAPTCP/IPISO-IGRPIDPHODSPIDSystemIDIS-ISIDIDP+HODSPIDSystemIDNSAPCiscoIS-ISNSELID61-13NSAP8-20CiscoISO-IGRPAreaIDDomainIDAreaIDAreaID2DomainIDNSAP10-20NETNetworkEntityTitleNSELNSEL00NSAPNETAFI=49OSITCP/IP10.0.0.0172.16.0.0-172.31.0.0192.168.0.0IS-ISIPAFI=39ISOAFI=47ISONET00dotSystemIDMACIPDomainIDAreaID1NSAP=47.0001.aaaa.bbbb.cccc.00IS-IS:Area=47.0001,SystemID=aaaa.bbbb.cccc,NSEL=00ISO-IGRP:Domain=47Area=0001,SystemID=aaaa.bbbb.cccc,NSEL=002NSAP=39.0f01.0002.0000.0c00.1111.00IS-IS:Area=39.0f01.0002,SysemID=0000.0c00.1111,NSEL=00ISO-IGRP:Domain=39.0f01Area=0002,SystemID=0000.0c00.1111,NSEL=001AreaID2ESAreaIDIS3Level-1ISSystemIDISSystemID4Level-2ISSystemID5DLCISystemIDLANIDAreaISAreaSystemID6SystemIDIS-IS:possibleduplicatesystemIDsys_iddetectedIS-ISPDU-ProtocolDataUnitIS-IS1HelloPDUESHESISISHISESIIHIS2LSPLink-statePacket3PSNPPartialsequencenumberPDU4CSNPCompletesequencenumberPDU5OSIPDUDatagramorPacketPDUFrameIS-ISLANsIS-ISLANsAllothersOSPFOSPFNBMAIS-ISNBMALink-statePacket1LSP2LSPIDsequencenumber1Overflow1LSP/sec120DoSISOSPF3120004ISES56IPIS-ISIS-ISDISOSPFDROSPFDRBDRSPFIS-ISIS-ISDISDesignatedIntermediateSystemPseudonodesDISOSPFDRIS-ISOSPFDR-OtherAboutMetricIS-ISdefaultmetricToSDTRDelayExpenseReliabilitymetric6bits24bitsmetric-styleTheroleofroutersIS-IS1L1Level1OSPFLevel1ESESLevel1Level-12L2Level2OSPFOSPF0Level23L1/L2Level1-2OSPFABRLevel1Level2L1L2L1OSPF4L1/L2L1L1L1/L2L2IS-ISLANsLSPsAllothersLSPsHelloPDUESHESISISHISESIIHISESISHISISESISESHESESLSPsLANsL1L2HelloPacketP2PHelloPacketHelloInterval=10sDeadInterval=30sL1L2IS-ISLANsWANsL1L2L1ISL2PSNPP2PLSPsCSNPLANDIS10sP2PLSLSPsLSPsSPFLSUp/DownorMetricIS-ISLSPsLSPsISLSPsOSPFOKLet’stakearest!CCIE1561LABTitleChapter3IPandOSIRoutingwithIntegratedIS-ISIS-ISIPOSIIS-ISOSIIPIS-ISVLSMRedistributionIPSummarizationNETSPFOSISPFL1L2PRCPartialroutecalculationESIPIS-ISESOSIAreaRoutingOSILevel1SystemIDLevel1-2Level2AreaAddressAreacostSystemIDLevel2Level1-2Level1Level2Level1Level1-2IS-ISIPBGPCLNSISO-IGRPCLNSIS-ISshowisistopologyNETDynamicHostnameMappingshowclnsrouteCLNSNETL1NETshowisisrouteNETDynamicHostnameMappingL1L1-L2L1which-routeNSAPNSAPIPPRCPartialroutecalculationESIPIPIPIS-ISIPIPIS-ISiIL1L2IS-ISCiscoNASDAQCiscoMicrosoftChapter4IntegratedIS-ISRoutingProtocolConfigurationIS-ISNETsIS-ISIS-ISNETIS-ISloopback1.Router(config)#routerisis[tag]IS-IStagIS-IS2.Router(config-router)#netnetwork-entity-titleNETIP3.Router(config-if)#iprouterisisIS-ISIP4.Router(config-if)#clnsrouterisisIS-ISCLNS5.Router(config-router)#is-type{level-1|level-1-2|level-2-only}L1/L2Station/Area6.Router(config-if)#is-circuit-type{level-1|level-1-2|level-2-only}L1/L27.Router(config-if)#isismetricdefault-metric{level-1|level-2}10IOS12.0Manual1Router(config-if)#isishello-intervalseconds{level-1|level-2}Hello10s2Router(config-if)#isishello-multipliermultiplier{level-1|level-2}DeadIntervalHelloInterval33Router(config-if)#isispriorityvalue{level-1|level-2}0-127,64,0DIS4Router(config-if)#isispasswordpassword{level-1|level-2}5Router(config-router)#summary-addressaddressmask{level-1|level-1-2|level-2}IS-ISrouterisisnet01.0001.0000.0000.0002.00interfaceethernet0ipaddress10.1.1.1255.255.255.0iprouterisisisiscircuit-typelevel-2isismetric20level-2interfaceserial0ipaddress10.1.2.1255.255.255.0iprouterisisisiscircuit-typelevel-1IS-IS1showclnsCLNS2showclnsprotocol[tag]showipprotocol3showclnsinterface[typenumber]DIS4showclnsneighbors[typenumber][detail]5showisi