EIGRP-Advance-EIGRP扩展提高

©2012Ciscoand/oritsaffiliates.Allrightsreserved.111©2012Ciscoand/oritsaffiliates.Allrightsreserved.2FeatureOverviewHierarchicalConfiguration(NamedMode)EIGRPIPv6Primer©2012Ciscoand/oritsaffiliates.Allrightsreserved.3• EIGRPiseasytodesignandsupportFastersystemdesignanddeploymenttimeEasierlearningcurveforsupportpersonnelLowerOperationalCosts(OpEx)• OptimizedforenterpriseandcommercialnetworksFlexibledesignoptionsSub-secondconvergencesinceinceptionSimpleforsmallnetworks,yetscalableforverylargenetworks• Excellentcampusandhub-n-spokeWANprotocol• ExcellentscalabilityinDMVPNdeployments• ProvendeploymentThemostwidelydeployedenterpriseroutingprotocolWidelyavailableacrossCiscoplatformssuitableforenterpriseandcommercial©2012Ciscoand/oritsaffiliates.Allrightsreserved.4EIGRPNamedModeConfigurationSupport• EIGRPhasbeenextendedtosupportahierarchicalconfiguration• Commandsarescattered,unclearscope,andsimilarbutdifferent.• Name-Modeü Clearlydefinetheeffectofthecommand,ortheexpectedoutcome.ü ProvidesONEplace-ONEcommonwaytodefineafeatureü Allowsyoutoenterinformationneededforagivenmode(avoidmissingASconfigurationerrors)ü Enteritthesameway!Reducethetimeneededtolearnanewprotocol.• Supportsallcurrentandfuturefeaturedevelopmentinanextensibleway• Aboveall–allowuserstokeeptheexistingConfig/ExecModeincaseusersprefertheclassicconfigurationmode©2012Ciscoand/oritsaffiliates.Allrightsreserved.5• Classicmode:Configuring“routereigrp”commandwithanumber• Namedmode:Configuring“routereigrp”commandwiththevirtual-instance-nameü NamedmodesupportsbothIPv4andIPv6,andVRF(VirtualRoutingandForwarding)instancesü NamedmodeallowsyoutocreateasingleInstanceofEIGRPwhichcanbeusedforallfamilytypesü NamedmodesupportsmultipleVRFslimitedonlybyavailablesystemresourcesü NamedmodedoesnotenableEIGRPforIPV4routingunlessconfiguredroutereigrp[virtual-instance-name|asystem]![no]shutdown!.!.!.!©2012Ciscoand/oritsaffiliates.Allrightsreserved.6• Singleplaceforallcommandsneededtocompletelydefineaninstance“showrun|sectionroutereigrp”• Defineswhatusersarerouting/distributingü “commonlookandfeel”ü Providesupportforbothrouting(address-family)andservices(service-family)ü CanbeconfiguredforVRFs• Assuresubcommandsareclearastotheirscopeü Staticneighbors,peer-groups,stub,etc.ü neighbor,neighborremote,etc.routereigrp[virtual-instance-name]!address-familyprotocol[vrfname]autonomous-system#!…!exit-address-family!service-familyprotocol[vrfname]autonomous-system#!…!exit-service-family!©2012Ciscoand/oritsaffiliates.Allrightsreserved.7• EIGRPspecificinterfacepropertiesareconfigurationintheaf-interfacemode;Forexample:authentication,timers,andbandwidthcontrol• “af-interfacedefault”appliestoALLinterfacesNotallcommandsaresupported• “af-interfaceinterface”appliestoONLYoneinterfaceOnly“eigrp”specificcommandsareavailablePropertieswhichareinterfacespecific,suchasdelayandbandwidth,arestillconfiguredundertheinterface.routereigrp[virtual-instance-name]!address-familyprotocolautonomous-system#!af-interfacedefault!…!exit-af-interface!af-interfaceinterface!…!exit-af-interface!exit-address-family!©2012Ciscoand/oritsaffiliates.Allrightsreserved.8• Topologyspecificconfigurationsuchas:ü default-metricü event-log-sizeü external-clientü metricconfigü timersconfigü redistributionAppliestoglobal,ordefault,routingtableroutereigrp[virtual-instance-name]!address-familyprotocolautonomous-system#!topologybase!…!exit-topology!exit-address-family!©2012Ciscoand/oritsaffiliates.Allrightsreserved.9Theauto-summarycommandisarelicfromthedaysofclassfulrouting.Itwasenabledbydefaultinpre-release5images.• Theauto-summarizationfeatureisnolongerwidelyusedand'noauto-summary'hassincebecometheprevailingconfiguration• CSCso20666changedauto-summarybehaviortodisabledbydefault• Because'noauto-summary'isthefactorydefaultsettingitwillnotnvgen--auto-summarywillnowonlynvgenifitisexplicitlyenableddefaultnvgenbehaviorIOSVersion(eigrpversion)auto-summary'auto-summary':doesnotnvgen'noauto-summary':nvgens12.2SR(rel2),12.2SX(rel3),12.2SG(rel4)auto-summary'auto-summary':nvgens'noauto-summary':nvgens12.2S(rel1),12.4T(rel1),12.2SB(rel1)noauto-summary'auto-summary':nvgens'noauto-summary':doesnotnvgen15.0(rel5),15.0T(rel5),12SRE(rel5),122XNE(rel5)122XNF(rel5_1),122(55)SG(rel5_2)©2012Ciscoand/oritsaffiliates.Allrightsreserved.10InternetProtocolVersion6(IPv6)• EIGRPsupportsrevision6oftheInternetProtocolIPv6(IPv6)• SameEIGRPprotocol,justIPv6enabled• AfamiliarlookandfeelmeansincumbentEIGRPoperationalexpertisecanbeleveraged• DUALperformsroutecomputationsforIPv6withoutmodifications• ProvidesfeatureparitywithmostIPv4Features:ü EIGRPIPv6MIBSü EIGRPIPv6NSF/SSOü EIGRPIPv6VRF-awareü EIGRPIPv6BFDsupportü Etc.interfaceEthernet0/0
ipaddress1.1.1.1
ipv6enable!!!routereigrpROCKS!address-familyipv4autonomous-system1
network10.0.0.0255.0.0.0
af-interfaceEthernet0/0
hello30
exit-af-interface!!!address-familyipv4vrfciscoautonomous4453
network192.168.0.0!!!address-familyipv6autonomous-system1
af-interfaceEthernet0/0
noshutdown