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ID:42415281
大小:2.43 MB
页数:21页
时间:2019-09-14
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1、IntroducingCampusNetworksNetworkRequirementsIntelligentInformationNetworkIntelligentInformationNetwork(IIN)integratesnetworkedresourcesandinformationassets.IINextendsintelligenceacrossmultipleproductsandinfrastructurelayers.IINactivelyparticipatesinthedeliveryofservicesandapplications.Thr
2、eephasesinbuildinganIINare:IntegratedtransportIntegratedservicesIntegratedapplicationsCiscoSONAFrameworkTheCiscoService-OrientedNetworkArchitecture(SONA)isanarchitecturalframework.SONAbringsseveraladvantagestoenterprises:OutlineshowenterprisescanevolvetowardtheIINIllustrateshowtobuildinte
3、gratedsystemsacrossafullyconvergedintelligentnetworkImprovesflexibilityandincreasesefficiencyCiscoSONAFrameworkLayersCiscoEnterpriseArchitectureNonhierarchicalNetworkDevicesLargecollisiondomainLargebroadcastdomainHighlatencyDifficulttotroubleshootIssuesNotrafficbetweenVLANsUnboundedbroadc
4、astdomainServersnotcentrallylocatedLayer2SwitchingHardware-basedbridgingWire-speedperformanceCollisiondomainperportTrafficcontainmentbasedonMACaddressLayer3RoutingSinglebroadcastdomainperinterfaceACLscanbeappliedbetweensegmentsIssuesHighper-portcostLayer3processingrequiredHighlatencyoverL
5、ayer2switchingMultilayerSwitchingCombinedfunctionalityLayer2switchingLayer3switchingLayer4switchingLowlatencyHigh-speedscalabilityIssueswithMultilayerSwitchesinaNonhierarchicalNetworkSinglepointoffailureforLayer2andLayer3UnderutilizationofhardwareSpanningtreecomplexityServersnotcentr
6、allylocatedHierarchicalCampusModelECNMFunctionalAreasEnterpriseCompositeNetworkModelModulesintheEnterpriseCampusCampusInfrastructureModuleSwitchConfigurationInterfacesTwointerfacesareusedtoconfigureCiscoCatalystswitches:CiscoCatalystsoftwareCiscoIOSCiscoCatalystsoftwarewastraditionallyus
7、edtoconfigureLayer2parametersonthemodularswitches:CiscoCatalyst4000,5500,6500SeriesTheseswitchesnowsupportCiscoIOS(nativeIOS)CiscoIOSsoftwareisstandardformostotherswitchesandforLayer3configurationonthemodularswitches.CiscoCatalystSoftwareCiscoCatalystsoftwareisusedt
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