移动P2P地全公网IP问题研究

JariHamalainenNokiaNorthAmericanGlobalIPv6SummitSanDiego,CA,U.S.A.June26th,2003IPv6EnablingPeer-to-PeerIMSServicesAgendaIPmultimediaservicesIMSandIPv6Exampleofpeer-to-peerIPconnectivityTechnologyandapplicationtrendsMulti-accessIMSConclusionsIPmultimediaservicesThefourkeychangesRicherperson-to-personcommunicationIPwillincreaseusagethroughreachabilityofusers,seamlessusageofdifferentcommunicationtypesandeasy-to-usegroupcommunications.RicherinteractionbetweenmediastreamsEasyintegrationandinterworkingofdifferent

IP-basedservices.ServicemobilityConsistentservicesovervariousdifferent

accessnetworksincreaseusageandreducechurn.EasierservicecreationandintegrationWelldefinedopenAPIsandprogramming

languagesenableservicecreationby

3rdpartydevelopers.GlobalSIP/IMSdeploymentneedsIPv6IntroductionofSIP-basedpeer-to-peerservicesisanimportantstepaftercurrentclient-serverbasedservices.IPMultimediaSubsystem(IMS)isaserviceinfrastructurebasedontheuseofSessionInitiationProtocol(SIP).3GPPRelease5and6specifications3GPP2specificationsInordertomakepeer-to-peerservicesworkbetweendifferentoperators'networks,IPv6isneeded-peer-to-peerservicesworkwellonlywithpublicIPaddresses.SmallscaleIMSdeployment/pilotingcanbestartedwithIPv4.IPv6isvitalforwiderscale,globalIMSdeployment.Exampleofpeer-to-peerIPconnectivityCSCFUMSIPv6SIPInviteplayerPeteracceptedthechallenge!ThomasPeterThomaschallengesyoutoagameofcheckers!AcceptDeclineAcceptIPConnectionGamedataQuitChatPushtoStreamPeter:00:00:00Thomas:00:00:00CSCFUMSSIPInviteplayerPeter:00:00:00Thomas:00:00:00Chat>Peter:Iamgoingtowinthistime!>Thomas:Yeahright,inyourdreams!ThomasPeterIPConnectionGamedataChatPushtoStreamQuitChatPeter:00:00:00Thomas:00:00:00>Peter:Iamgoingtowinthistime!>Thomas:Yeahright,inyourdreams!IPv6Exampleofpeer-to-peerIPconnectivityCSCFUMSSIPInviteplayerPeter:00:00:00Thomas:00:00:00Chat>Peter:hey,lookwhatjustpassedby!ThomasPeterIPConnectionGamedataStreamingvideoPushtoStreamQuitPeterchoosestoaddastreamingcomponenttosharewhatheisseeingStreamingvideofromPeter:IPv6Exampleofpeer-to-peerIPconnectivityFuturemobileservices=”serverlessmedia”CSCFUMSSIPThomasPeterIPConnectionGamedataChatPeter:00:00:00Thomas:00:00:00SignalingonlyMediacomponentsNoNATsinbetween,publicIPaddressesareneededExampleservices:gaming,chat,streaming,Voice/videooverIP,etc.TheSIP/IMSuserplaneispeer-to-peerinnature-SIP/IMSsessionsbetweenmobilesindifferentPrivateIPv4addressspacesbecomehighlycomplicated.ThisiswhypublicIPaddressesarerequired.TheonlyfutureproofsolutionisprovidedbyIPv6.IPv6Standardizedtechnologyenablersfor

newmobileservicesareheretodayMMSJavaXHTMLandTCP/IPColordisplaysImagingandcameraintegrationMultimedia

StreamingPresencePositioningDRMGPRSEDGEWCDMA

CDMA2000MultimodeVideoMIDISymbianIPv6SIPBluetoothWLANTechnologyandapplicationtrends2Gradiointerface

(GSM/EDGE)IPv4Client-serverconnectivitySMStextmessaging,WAPbrowsing,MMSmultimediamessaging2Gand3Gradiointerfaces(WCDMA/CDMA2000)IPv4/IPv6dualstackPeer-to-peerconnectivity

Richer,IP-basedApplicationsHTTP/TCP/IPbrowsingPresenceInstantMessagingMultimediastreamingGamingVoiceandvideotelephonySharingEtc.Multi-accessIMSCommonIPversion(=IPv6)makesthemulti-accesscasemucheasierGGSNP-CSCFS-CSCFIMS(IPv6)3GPP

access

nwPDSN3GPP2

access

nwWLAN

accessnwP-CSCFSIPSignalingforbuildingupthesessionUserIPdataSIPP-CSCFConclusionsIntroductionofSIP-basedpeer-to-peerservicesisanimportantstepaftercurrentclient-serverbasedservices.IPv6enablesglobalIMS-basedpeer-to-peerservices.IMSservices