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1、yLaboratoriesforDataCommunicationsandComputerNetworksRohitGoyal,SteveLai,RajJain,ArianDurresiDepartmentofComputerandInformationScienceTheOhioStateUniversity395DreeseLab,2015NeilAvenueColumbus,OH43210-1277,U.S.A.E-mail:goyal@cis.ohio-state.eduAbstract{Inthispaperwedescribeahands
2、-onlab-The eldofcomputernetworkingisalsochangingoratoryorientedinstructionalpackagethatwehavede-rapidly.WiththerecentdevelopmentofATMnetworksvelopedfordatacommunicationsandnetworking.Theandplansfortheirrapiddeployment,mostcoursesinpackageconsistsofasoftwaretool,togetherwithinstr
3、uc-networkingarequicklybecomingout-of-date.Thereistionalmaterialforalaboratorybasednetworkingcur-aneedfornetworkingcoursestointegratetheconceptsriculum.Thesoftwareisbasedonasimulationenvi-fromtraditionalcomputernetworkingwiththosefromronmentthatenablesthestudenttoexperimentwithv
4、ar-telecommunicationnetworks.iousnetworkingprotocols,onaneasytousegraphicalLaboratoryworkisanindispensablecomponentofuserinterface(GUI).Datamessage
ows,packetlosses,anyengineeringorappliedsciencecurriculum.Thiscontrol/routingmessage
ows,virtualcircuitsetups,linkappliestonetworki
5、ngcoursesaswell.Unfortunately,failures,biterrorsetc.,aresomeofthefeaturesthatcanmostcomputernetworkingcoursesdonothavelabora-bevisualizedinthisenvironment.Thestudentcanalsotorycomponents.Evenifthereisalab,itisusuallymodifythenetworkingcomponentsprovided,aswellasrelatedtothehighe
6、rlayerprotocols,suchaselectronicaddnewcomponentsusingtheCprogramminglanguage.mail, letransfer,andremotelogin.Inaddition,veryTheinstructionalmaterialconsistsofasetoflabora-fewdepartmentshavefacilitiesforstudentstoexperi-toryexercisesfor
owanderrorcontrol(HDLC),IEEEmentwithlowerla
7、yerprotocols,suchasdatalinklayer802.3CSMA/CDprotocol,thetokenringprotocol,in-andnetworklayer,usingrealtestnetworks.Suchenvi-terconnectingLANsviabridges,TCPcongestionavoid-ronmentsrequirealargenumberofcomputersintercon-anceandcontrol,IPfragmentationandreassembly,ATMnectedviavario
8、usnetworktechnologies.TheirusebyaPNNIroutingand
