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Readings•Required:•eXpressiveInternetArchitecture15-744:ComputerNetworking•2sectionsofMobilityFirst•2sectionsofNebula•Relevantearliermeeting:L-19FutureInternetArchitecture•CCN->NamedDataNetwork2OutlineThe“Next”Internet:MoreoftheSame?•MotivationanddiscussionDiversePerformance“-ilities”Service,QoS•Someproposals:NextIntegratedFuture•CCNInternet2GenerationServicesInternetInternetNetworksArchitecture•MobilityFirstInternetArchitectureFixedChangeMe!•Nebula•XIA341KeyInternetFeaturesFour“FIA”ProjectsButmaybetherearebetterways…•MobilityFirstWhatwelearnedaboutthecurrentInternet:•Mobilityasthenormratherthantheexception–generalizesdelaytolerantnetworking•Simplecorewithsmartendpoints•NamedInternetArchitecture•TheIPnarrowwaistsupportsevolution•Contentcentricnetworking-dataisafirstclass•Addresseshavetopologicalmeaningentity•Packet-basedcommunication•Nebula•Internetcenteredaroundcloudcomputingdata•AllIPhostscanexchangepacketscentersthatarewellconnected•Non-essentialfunctionsareservices•eXpressiveInternetArchitecture•End-to-endtransportprotocols•Focusontrustworthiness,evolvability•Securityisnotpartofthearchitecture56OutlineCCNDiscussion•Motivationanddiscussion•Simplecorewithsmartendpoints•TheIPnarrowwaistsupportsevolution•Someproposals:•Addresseshavetopologicalmeaning•CCN•Packet-basedcommunication•MobilityFirst:slides…•AllIPhostscanexchangepackets•Nebula:slides…•Non-essentialfunctionsareservices•XIA•End-to-endtransportprotocols•Securityisnotpartofthearchitecture782OutlineToday’sInternet•MotivationanddiscussionSrc:ClientIPDest:ServerIP•Someproposals:•CCNTCP•MobilityFirst:slidesJunHanClientIPServerIP•Nebula:slidesGuangyu•Clientretrievesdocumentfromaspecificwebserver•XIA•Butclientmostlycaresaboutcorrectnessofcontent,timeliness•Overview•Specificserver,filename,etc.arenotofinterest•Multipleprincipaltypes•Transferisbetweenwrongprincipals•Whatiftheserverfails?•Addressing•Optimizingtransferusinglocalcaches
