computer network preface[1]

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1、ComputerNetworksFengLinSchoolofComputerScienceSichuanUniversityNetwork.scu@gmail.comPrefaceCourseDescription¾ThiscourseprovidesanintroductiontoComputerNetworksfundamentalconceptsinthedesignandimplementationofcomputercommunicationnetworks,theirprotocols,andapplications,withemph

2、asisontheInternet.¾Topicstobecoveredinclude:overviewofnetworkarchitectures,applications,networkprogramming,transport,congestion,routing,anddatalinkprotocols,addressing,localareanetworks,andsomeadvancedtopics.ConceptsforNetworks¾CommunicationNetworksComputerNetworks¾Telecommuni

3、cationNetworks¾ComputerNetworks¾Ourcourseonlycoversthecomputernetworks!!CoursePurpose¾TolearntheprinciplesofcomputernetworkingComputerNetworksProtocollayersandtheirservicemodelsmultiplexing/demultiplexingreliabledatatransferflowcontrolandcongestioncontrolrouting(pathselection)

4、errordetection,correctionsharingabroadcastchannel:multipleaccesslinklayeraddressingCoursePurposeComputerNetworks¾TolearnInternetarchitectureandprotocols¾TolearntouseInternetprotocolsProgramsusingTCPsocketstocommunicateacrossanIPnetworkProgramsthatactasclientsusingcommonInterne

5、tprotocolslikeFTP,HTTP,andSMTPCoursePurposeComputerNetworks¾Tolearntheprinciplesofdistributedsystemdesign¾TolearntobuilddistributedapplicationsusingthemostimportantcurrenttechnicalapproachesDistributedobjectstobemanagedbyanobjectrequestbroker(ORB)Distributedapplicationsbasedon

6、existingandnewdistributedobjectsmanagedbyanORBCoursePurposeComputerNetworks¾Toknowthemoderndevelopmentstothedynamicfieldofcomputernetworking¾Tounderstandnotonlytoday’snetworksbuttomorrow’saswell¾TodosomethingyouwanttodooncomputernetworkingCourseFeatures¾Top-DownApproachCompute

7、rNetworksrouterworkstationEndsystemapplicationservermobileEndtoendlocalISPtransportNetworkcore:routingregionalISPHookingnetstogetherLinklevelprotocolscompanyEthernetnetworkCourseFeatures¾InternetasCaseStudyComputerNetworksNowcomputernetworkisasynonym(同义词)ofInternet（User’sview)

8、EagertolearnitApplicationprotocolandsocketprogrammingInstanti