集线器_交换机_路由器的区别

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1、SerialPoint-to-PointConnectionsRouterconnectionsNetworkconnectionsattheCSU/DSUEIA/TIA-232EIA/TIA-449EIA-530V.35X.21CSU/DSUEnduserdeviceServiceProviderDTEDCEPoint-to-pointorcircuit-switchedconnectionCOSwitchCustomerPremisesEquipmentDemarcationLocalLoopWANserviceprovidertolln

2、etworkTrunksandswitchesProviderassignsconnectionparameterstosubscriberSSSSSSSLayer2DesignDeterminingthesizeofcollisiondomainsinhubbedandswitchednetworksLayer2DesignDiagramminghubplacementinastandards-basedextendedstartopologyARP地址解析协议知道IP地址，找MAC地址AddressResolutionProtocol172.1

3、6.3.1172.16.3.2IP:172.16.3.2=???IneedtheEthernetaddressof176.16.3.2.AddressResolutionProtocol172.16.3.1IP:172.16.3.2Ethernet:0800.0020.1111172.16.3.2IP:172.16.3.2=???IneedtheEthernetaddressof176.16.3.2.Iheardthatbroadcast.Themessageisforme.HereismyEthernetaddress.AddressResolu

4、tionProtocolMapIPEthernetLocalARP172.16.3.1IP:172.16.3.2Ethernet:0800.0020.1111172.16.3.2IP:172.16.3.2=???IneedtheEthernetaddressof176.16.3.2.Iheardthatbroadcast.Themessageisforme.HereismyEthernetaddress.Example1:DestinationlocalFindingtheMACAddressRouterAExample2:Destinationn

5、otlocalHostZHostYQueryBroadcastHostZMAC?HostZResponseHostYMACRouterAMACRoutingTable:NetforHostZMapIPEthernetNotLocalARP广播单播能收到能收到能收到收不到收不到收不到HUBSWITCHROUTERA与B通信，C是否收到？（集线器交换机路由器的区别）Half-duplexEthernetEthernetisahalf-duplextechnologyMostimportantarereceive(RX),transmit(TX),and

6、collisiondetectionEthernetphysicalconnectorprovidesseveralcircuitsEthernet10BaseTtransmissiontimePacketsizeinbytesTransmissiontimeinms6451.2512410100080015181214MicrosegmentationDedicatedpathsbetweensendingandreceivinghostsLANsegmentationwithbridgesHowaswitchlearnsaddressesLea

7、rnsastation’slocationbyexaminingthesourceaddressSendoutallportswhenthedestinationaddressisabroadcast,multicastorunknownaddress(excepttheportthattheframeenter)ForwardwhenthedestinationislocatedadifferentinterfaceFilterswhenthedestinationislocatedonthesameinterfaceTwoswitchingme

8、thodsPreambleSFDDestinationhardwareAddressSourceHardwareAddre