思科网络技术培训之3：连接cisco设备

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1、ObjectivesUponcompletionofthischapter,youwillbeabletoperformthefollowingtasks:IdentifyandconnectnecessarycomponentstoenableconnectivitybetweenroutersorswitchesIdentifyandconnectnecessarycomponentstoenableWANconnectivityoverserialorISDNBRIconnectionsObjectives(cont.)Setupconsoleconnectionsbetweenrout

2、ers,switchesandaterminalDocumentthephysicaltopology,includingcabletypesandcablelocationsoneachinternetworkingdevicecore_sw_aISDNCloudLeasedLine/FrameRelayCablingtheCampusLegendFastEthernet/EthernetISDNDedicatedCore_ServerPhysicalDataLink(MAClayer)LANPhysicalLayerImplementationsPhysicallayerimplement

3、ationsvarySomeimplementationssupportmultiplephysicalmediaEthernet100baseTX10BaseT802.310Base510Base2100baseFX802.3Specificationsfor10mbEthernet802.3uSpecificationsfor100mb(Fast)Ethernet100baseT410BaseFDIXStandardPositioningEthernetintheCampusAccessLayerDistributionLayerCoreLayerEthernet10BaseTPositi

4、onFastEthernetPositionAccessLayerDistributionLayerCoreLayerProvidesconnectivtybetweentheenduserdeviceandtheaccessswitch.Nottypicallyusedatthislayer.Giveshigh-performancePCandworkstations100-Mbpsaccesstotheserver.Providesconnectivitybetweenaccessanddistributionlayers.Providesconnectivityfromthedistri

5、butiontocorelayer.Providesconnectivityfromtheserverblocktothecorelayer.Providesinter-switchconnectivity.Nottypicallyusedatthislayer.ComparingEthernetMediaRequirements10Base5100BaseTX10BaseT100BaseFXMediaMaximumSegmentLengthTopologyConnector50-ohmcoax(thick)500metersBus100metersStarStarPoint-to-Point

6、EIA/TIACat3,4,5UTP2pairEIA/TIACat5UTP2pair62.5/125micronmulti-modefiberAUIISO8877(RJ-45)Duplexmedia-interfaceconnector(MIC)STISO8877(RJ-45)400meters100metersDifferentiatingbetweenConnectionsAUIconnectorsareDB15ISO8877(RJ-45)connectorsandjacksareslightlylargerthanRJ-11phoneconnectorsandjacksFiberConn

7、ectorPortUTPDeviceTheRJ-45Connector188Pair4R41234567WirePairTisTipRisRingPair2T2Pair2R2Pair3T3Pair1R1Pair1T1Pair3R3Pair4T4PinUTPImplementationStraight-throughWiresoncableendsareinsameorderPinLabel1RD+