tcp ip协议new

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1、ComputerNetworks(CS422)DouglasComerComputerScienceDepartmentPurdueUniversityWestLafayette,IN47907http://www.cs.purdue.edu/people/comerÓCopyright2003.Allrightsreserved.Thisdocumentmaynotbereproducedbyanymeanswithouttheexpresswrittenconsentoftheauthor.COMPUTERNETWORKS(CS422)2003Profess

2、orDouglasComerCS422--PART112003PARTIIntroductionCS422--PART122003TopicAndScopeComputernetworksandinternets:anoverviewofconcepts,terminology,andtechnologiesthatformthebasisfordigitalcommunicationinprivatecorporatenetworksandtheglobalInternetCS422--PART132003YouWillLearnTerminologyCo

3、mmunicationbasics±Mediaandsignals±Asynchronousandsynchronouscommunication±Relationshipsamongbandwidth,throughput,andnoise±Frequency-divisionandtime-divisionmultiplexingCS422--PART142003YouWillLearn(continued)Networkingandnetworktechnologies±Packetswitching±Framing,parity,anderrordet

4、ection±Localandwideareatechnologies±Networkaddressing±Connectionandextension(repeaters,bridges,hubs,switches)±Topologiesandwiring(star,ring,bus)±Next-hopforwarding±Shortestpathcomputation±Measuresofdelayandthroughput±ProtocollayersCS422--PART152003YouWillLearn(continued)Internetsand

5、Internetworking±Motivationandconcept±InternetProtocol(IP)datagramformatandaddressing±Internetroutersandrouting±Addressbinding(ARP)±Internetcontrolmessages(ICMP)±UserDatagramProtocol(UDP)±TransmissionControlProtocol(TCP)±ProtocolportsanddemultiplexingCS422--PART162003YouWillLearn(cont

6、inued)Networkapplications±Client-serverparadigm±Domainnamesystem(DNS)±Filetransfer(FTP)±Mailtransfer(SMTP)±IPTelephony±Remotelogin(TELNET)±Webtechnologiesandprotocols(HTTP,CGI)±NetworksecurityCS422--PART172003WhatYouWillNotLearnCommercialaspects±Products±Vendors±Prices±Networkopera

7、tingsystemsHowtopurchase/con®gure/operateHowtodesign/implementprotocolsoftwareCS422--PART182003BackgroundRequiredAbilitytoprograminCKnowledgeoflow-levelprogrammingconstructs±Pointers±Bit®eldsinstructures±PrintfFamiliaritywithbasictools±Texteditor±Compiler/linker/loaderCS422--PAR

8、T192003Backg