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1、SupportingDiverseTrafficTypesinInformationCentricNetworksChristosTsilopoulosandGeorgeXylomenosMobileMultimediaLaboratoryAthensUniversityofEconomicsandBusinessPatision76,Athens,10434,Greece+302108203693{tsilochr,xgeorge}@aueb.grABSTRACTsatisfactionintermsof
2、applicationperformanceandsecureaccesstoinformation[1,2,3,4,5,6].Inthispaperwefocusontheissueoftransferringdiversekindsofinformationthroughinformation-centricnetworks(ICNs).WeFromatechnicalviewpoint,thecoreabstractioninanICNisarguethattheonerequestperpacket
3、modeofoperationsuggestednameddatainsteadofthenamedhostsoftheInternet.InsteadofintheearlydevelopmentofICNapplicationsisnotagoodfitforidentifyingthesourceanddestinationhost,theheaderofasometypesoftraffic,suchasmediastreamsandreal-timenetworklayerpacketcontai
4、nsanidentifierforthedatacarried.notifications.Toefficientlydeliverallkindsofinformation,weTheprimitiveactionsatthenetworklayerfollowareceiver-arguethatanICNshouldnotonlyidentifyinformationbyitsdrivenapproach:toreceiveapacketofnameddata,ausermustname,itshou
5、ldalsobeawareofthenatureofitstraffic.Wefirstrequestitbyitsname.ThisisinstarkcontrasttoIPwhereaclassifyinformationtraffictypesbasedontwocharacteristics:a)usermayfreelysendpacketstorecipienthosts.AnICN’sreliablevs.unreliabletransferandb)real-timevs.on-demand
6、responsibilityistorouterequestsforinformationtothebestdelivery.Thecombinationofthesetwocharacteristicsleadstoavailablelocationholdingthedesireddata(bestbeingsubjecttothreebroadcategories:a)channels,b)on-demanddocumentsandvariousmetrics,suchashopcount,laten
7、cyorsecurity)andthenc)real-timedocuments.Tohandlealltraffictypes,weproposedeliverthedatabacktotherequestor.twoextensionstotheCCNarchitecture:PersistentInterestsandReliableNotifications.Wedescribehowtheseadditions,togetherAlthoughthecoreabstractionattheinte
8、rnetworklayer–withacarefulselectionofinformationnames,canefficientlyrequestingandreceivingnameddata–isradicallydifferentthansupportthesethreecategoriesofinformationtraffictypes.thatoftheTCP/IPbasedInternet,IC
