试思科网络技术验四

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1、LAB4CablingLANsandWANsPART1RepeatersObjective:·Createasimulatednetworktopology·ApplyIPaddressestoworkstations·Befamiliarwiththefunctionofarepeater·UnderstandtheFourRepeaterRule·TestthesimulatedtopologyStep1CreatethetopologyshowninthediagraminPacketTracer.Afterconnectingallthed

2、evices,assigneachPCwithavalidIPaddressandsubnetmask.(YoucanuseanyIPaddressesaslongastheybelongtothesamenetwork.)Step2a)ClickontheSimulationtabtostartcreatingascenario.b)AddapacketandclickonsourcePC0andthenclickondestinationPC1.AddanotherpacketfromPC1toPC2.c)Clickplaytowatchthe

3、simulation.d)Takenoteofthetimeittakesforeachpackettoreachitsdestination.(Havingmorerepeatersbetweenworkstationsaddslatencytothepackets.)Step3a)Clickonceonthearrowontheleftoftheplaybuttontogobackonesecond(ThenumberintheTimeboxshouldbe“6”)b)AddapacketfromPC2toPC1.c)ClickontheTop

4、ologytab.RemoveaconnectionthenaddanotherrepeateranywherebetweenSwitch0andPC2.Re-connectthedevices.第13页共13页a)ClickontheSimulationandhittheplaybuttontowatchthesimulation.(Latencyresultsincollision.)PART2RepeatersandHubsInformation:1.Thistopologyconsistsof8hostsalongwith2hubsand1

5、repeaterinthenetwork.第13页共13页Tips:a)ThePacketTracer“i”locatedontheupperrightofeachpageanddevicewillgiveinformationpertainingtothatcertaindeviceortopology.b)Insimulation,the“i”nexttothescenariodropdownlistwillgiveinformationaboutthespecificscenario.c)Insimulation,clickingonthep

6、acketswillshowOSIlayerinformation.Procedures:a)Inthetopologymode,addthree(3)additionalrepeatersbetweenthetwo(2)hubs.b)Insimulationmode,createanewscenario.c)SendapacketfromPC4toPC0andapacketfromPC5toPC1atdifferenttimessothatthepacketswillnotcollide.d)Beforerunningthesimulation,

7、clickontheindividualpacketsonPC4andPC5toreviewthepacketandOSIinformation.Next,runthesimulation.e)Afterthefirstsimulation,repeatstep3exceptthepacketsdoescollidethistime.Thenrepeatstep4.f)AfterthepacketsarrivetoHub1,clickonthepacketthatleavesHub1andpropagatestoRepeater0.Question

8、s:a)Whatisthepurposeofahubandrepeaterinthisnetwork?集线器：对接收到的信