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1、NetworkingNamedContentOctober13,2009cACM,2009.Thisistheauthor’sversionofthework.ItispostedherebypermissionofACMforyourpersonaluse.Notforredistribution.ThedefinitiveversiontobepublishedinCoNEXT’09,December1-4,2009.NetworkingNamedContentVanJacobsonDianaK.SmettersJamesD.ThorntonMichae
2、lF.PlassNicholasH.BriggsRebeccaL.BraynardPaloAltoResearchCenterPaloAlto,CA,USA{van,smetters,jthornton,plass,briggs,rbraynar}@parc.com000000000000000000111111111111111111000000000000000000111111111111111111ABSTRACT00000000000000000011111111111111111100000000000000000011111111111111
3、1111emailWWWphone...browserchat...NetworkusehasevolvedtobedominatedbycontentdistributionSMTPHTTPRTP...FileStream...andretrieval,whilenetworkingtechnologystillspeaksonlyofcon-nectionsbetweenhosts.AccessingcontentandservicesrequiresTCPUDP...IndividualappsSecuritymappingfromthewhatth
4、atuserscareabouttothenetwork’swhere.ContentIPEverynodechunksWepresentContent-CentricNetworking(CCN)whichtreatscon-tentasaprimitive–decouplinglocationfromidentity,securityandethernetPPP...IndividuallinksStrategyaccess,andretrievingcontentbyname.UsingnewapproachestoCSMAasyncsonet...
5、IPUDPP2PBCast...routingnamedcontent,derivedheavilyfromIP,wecansimulta-neouslyachievescalability,securityandperformance.Weimple-copperfiberradio...copperfiberradio...000000000000000000111111111111111111000000000000000000111111111111111111mentedourarchitecture’sbasicfeaturesanddemon
6、strateresilience000000000000000000111111111111111111000000000000000000111111111111111111andperformancewithsecurefiledownloadsandVoIPcalls.Figure1:CCNmovestheuniversalcomponentofthenetworkstackfromIPtochunksofnamedcontent.1.INTRODUCTIONTheengineeringprinciplesandarchitectureoftoday’
7、sInternetLocation-dependence:Mappingcontenttohostlocationswerecreatedinthe1960sand’70s.Theproblemnetworkingaimedcomplicatesconfigurationaswellasimplementationofnet-tosolvewasresourcesharing—remotelyusingscarceandex-workservices.pensivedeviceslikecardreadersorhigh-speedtapedrivesor
8、evensupercomputers.Thecommunicati