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1、yLaboratoriesforDataCommunicationsandComputerNetworksRohitGoyal,SteveLai,RajJain,ArianDurresiDepartmentofComputerandInformationScienceTheOhioStateUniversity395DreeseLab,2015NeilAvenueColumbus,OH43210-1277,U.S.A.E-mail:goyal@cis.ohio-state.eduAbstract{Inthispaperwed
2、escribeahands-onlab-demandforpeoplewithanetworkingeducation.Theen-oratoryorientedlearningandinstructionalpackagethatrollmentinnetworkingcoursesatuniversitiesisgrowingwehavedevelopedfordatacommunicationsandnetwork-exponentiallyjustlikethenumberofnetworksthatareing.Th
3、epackageconsistsofasoftwaretool,togetherwithbeingconnectedtotheInternet.instructionalmaterialforalaboratorybasednetworkingThe eldofcomputernetworkingisalsochangingcurriculum.Thesoftwareisbasedonasimulationen-rapidly.WiththerecentdevelopmentofATMnetworksvironmentthat
4、enablesthestudenttoexperimentwithandplansfortheirrapiddeployment,mostcoursesinnet-variousnetworkingprotocols,onaneasytousegraphicalworkingarefastbecomingout-of-date.Thereisaneeduserinterface(GUI).Datamessage
ows,packetlosses,fornetworkingcoursestointegratetheconcept
5、sfromtra-control/routingmessage
ows,virtualcircuitsetups,linkditionalcomputernetworkingwiththoseofthetelecom-failures,biterrorsetc.,aresomeofthefeaturesthatcanmunicationnetworks.bevisualizedinthisenvironment.ThestudentcanalsoLaboratoryworkisanindispensablecomponento
6、fmodifythenetworkingcomponentsprovided,aswellasanyengineeringorappliedsciencecurriculum.Thisap-addnewcomponentsusingtheCprogramminglanguage.pliestonetworkingcoursesaswell.Unfortunately,mostTheinstructionalmaterialconsistsofasetoflabora-computernetworkingcoursesdonot
7、havelaboratorytoryexercisesfor
owanderrorcontrol(HDLC),IEEEcomponents.Evenifthereisalab,itisusuallyrelated802.3CSMA/CDprotocol,thetokenringprotocol,in-tothehigherlayerprotocols,suchaselectronicmail, leterconnectingLANsviabridges,TCPcongestionavoid-transfer,andremote
8、login.Veryfewdepartmentshaveanceandcontrol,IPfragmentationandreassembly,ATMfacilitiesforstudentstoexperimentwithlowerlayerpro-PNNIroutinga
