SIST EN 301 347 V7.1.1:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital cellular telecommunications system (Phase 2+) (GSM); General Packet Radio Service (GPRS); GPRS Tunnelling Protocol (GTP) across the Gn and Gp interface (GSM 09.60 version 7.1.1 Release 1998)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 301 347 Version 7.1.1SIST EN 301 347 V7.1.1:2003en01-december-2003SIST EN 301 347 V7.1.1:2003SLOVENSKI
STANDARD



SIST EN 301 347 V7.1.1:2003



ETSIEN301347V7.1.1(2000-01)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);GeneralPacketRadioService(GPRS);GPRSTunnellingProtocol(GTP)acrosstheGnandGpInterface(GSM09.60version7.1.1Release1998)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 301 347 V7.1.1:2003



ETSIETSIEN301347V7.1.1(2000-01)2(GSM09.60version7.1.1Release1998)ReferenceREN/SMG-030960Q7KeywordsDigitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM)ETSIPostaladdressF-06921SophiaAntipolisCedex-FRANCEOfficeaddress650RoutedesLucioles-SophiaAntipolisValbonne-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88Internetsecretariat@etsi.frIndividualcopiesofthisETSIdeliverablecanbedownloadedfromhttp://www.etsi.orgIfyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frImportantnoticeThisETSIdeliverablemaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.CopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 301 347 V7.1.1:2003



ETSIETSIEN301347V7.1.1(2000-01)3(GSM09.60version7.1.1Release1998)ContentsIntellectualPropertyRights.6Foreword.61Scope.72References.73Definitionsandabbreviations.83.1Definitions.83.2Abbreviations.94General.95Transmissionorderandbitdefinitions.106GTPheader.107SignallingPlane.127.1Signallingprotocol.127.2SignallingMessageFormats.137.3UsageoftheGTPHeader.137.4PathManagementmessages.147.4.1EchoRequest.147.4.2EchoResponse.157.4.3VersionNotSupported.157.5TunnelManagementmessages.157.5.1CreatePDPContextRequest.157.5.2CreatePDPContextResponse.177.5.3UpdatePDPContextRequest.197.5.4UpdatePDPContextResponse.197.5.5DeletePDPContextRequest.217.5.6DeletePDPContextResponse.217.5.7CreateAAPDPContextRequest.227.5.8CreateAAPDPContextResponse.237.5.9DeleteAAPDPContextRequest.247.5.10DeleteAAPDPContextResponse.257.5.11ErrorIndication.257.5.12PDUNotificationRequest.267.5.13PDUNotificationResponse.267.5.14PDUNotificationRejectRequest.277.5.15PDUNotificationRejectResponse.277.6LocationManagementmessages.287.6.1SendRouteingInformationforGPRSRequest.287.6.2SendRouteingInformationforGPRSResponse.297.6.3FailureReportRequest.297.6.4FailureReportResponse.307.6.5NoteMSGPRSPresentRequest.307.6.6NoteMSGPRSPresentResponse.317.7MobilityManagementmessages.317.7.1IdentificationRequest.317.7.2IdentificationResponse.327.7.3SGSNContextRequest.327.7.4SGSNContextResponse.337.7.5SGSNContextAcknowledge.347.8Reliabledeliveryofsignallingmessages.357.9Informationelements.357.9.1Cause.367.9.2InternationalMobileSubscriberIdentity(IMSI).38SIST EN 301 347 V7.1.1:2003



ETSIETSIEN301347V7.1.1(2000-01)4(GSM09.60version7.1.1Release1998)7.9.3RouteingAreaIdentity(RAI).387.9.4TemporaryLogicalLinkIdentity(TLLI).397.9.5PacketTMSI(P-TMSI).397.9.6QualityofService(QoS)Profile.407.9.7Spare.407.9.8ReorderingRequired.407.9.9AuthenticationTriplet.407.9.10Spare.417.9.11MAPCause.417.9.12P-TMSISignature.417.9.13MSValidated.417.9.14Recovery.427.9.15Selectionmode.427.9.16FlowLabelDataI.437.9.17FlowLabelSignalling.437.9.18FlowLabelDataII.437.9.19ChargingID.447.9.20EndUserAddress.447.9.21MMContext.477.9.22PDPContext.487.9.23AccessPointName.517.9.24ProtocolConfigurationOptions.517.9.25GSNAddress.517.9.26ChargingGatewayAddress.527.9.27PrivateExtension.528TransmissionPlane.528.1ProtocolStack.538.1.1UsageoftheGTPHeader.538.1.1.1UsageoftheSequenceNumber.538.2TunnellingbetweenSGSNs.548.3TunnellingbetweenGGSNs.549PathProtocols.549.1UDP/IP.549.1.1UDPHeader.549.1.1.1Signallingrequestmessages.549.1.1.2Signallingresponsemessages.549.1.1.3EncapsulatedT-PDUs.549.1.2IPHeader.549.1.2.1SignallingrequestmessagesandEncapsulatedT-PDUs.559.1.2.2Signallingresponsemessages.559.2TCP/IP.559.2.1TCPHeader.559.2.2IPHeader.5510Errorhandling.5510.1Protocolerrors.5510.1.1DifferentGTPversions.5610.1.2GTPMessagetooshort.5610.1.3UnknownGTPsignallingmessage.5610.1.4UnexpectedGTPsignallingmessage.5610.1.5Missingmandatorilypresentinformationelement.5610.1.6InvalidLength.5610.1.7Invalidmandatoryinformationelement.5610.1.8Invalidoptionalinformationelement.5710.1.9Unknowninformationelement.5710.1.10Outofsequenceinformationelements.5710.1.11Unexpectedinformationelement.5710.1.12Repeatedinformationelements.5710.1.13Incorrectoptionalinformationelements.57SIST EN 301 347 V7.1.1:2003



ETSIETSIEN301347V7.1.1(2000-01)5(GSM09.60version7.1.1Release1998)10.2Pathfailure.5710.3MSdetach.5710.4RestorationandRecovery.5811Inter-PLMNGTPcommunicationovertheGpinterface.5812IP,thenetworkingtechnologyusedbyGTP.5812.1IPversion.5812.2IPfragmentation.5812.2.1MOdirection.5812.2.2MTdirection.5912.2.3TunnellingfromoldtonewSGSN.5913GTPparameters.5913.1Timers.5913.2Others.59AnnexA(informative):Namingconvention.64AnnexB(informative):Amethodforsequencenumberchecking.65AnnexC(informative):Documentchangehistory.66History.67SIST EN 301 347 V7.1.1:2003



ETSIETSIEN301347V7.1.1(2000-01)6(GSM09.60version7.1.1Release1998)IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinSR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinSR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbytheSpecialMobileGroup(SMG).ThepresentdocumentdefinestheGnandGpinterfacesfortheGeneralPacketRadioService(GPRS)withinthedigitalcellulartelecommunicationssystem(Phase2+).ThecontentsofthepresentdocumentaresubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocument,itwillthenbere-submittedforOAPbyETSIwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version7.x.ywhere:7indicatesRelease1998ofGSMPhase2+xtheseconddigitisincrementedforallchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthisEN:7January2000DateoflatestannouncementofthisEN(doa):30April2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31October2000DateofwithdrawalofanyconflictingNationalStandard(dow):31October2000SIST EN 301 347 V7.1.1:2003



ETSIETSIEN301347V7.1.1(2000-01)7(GSM09.60version7.1.1Release1998)1ScopeThepresentdocumentdefinestheGnandGpinterfacesfortheGeneralPacketRadioService(GPRS).2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.•Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.•Foraspecificreference,subsequentrevisionsdonotapply.•Foranon-specificreference,thelatestversionapplies.•Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.•ForthisRelease1998document,referencestoGSMdocumentsareforRelease1998versions(version7.x.y).[1]GSM01.04:"Digitalcellulartelecommunicationssystem(Phase2+);Abbreviationsandacronyms".[2]GSM03.03:"Digitalcellulartelecommunicationssystem(Phase2+);Numbering,addressingandidentification".[3]GSM03.07:"Digitalcellulartelecommunicationssystem(Phase2+);RestorationProcedures".[4]GSM03.20:"Digitalcellulartelecommunicationssystem(Phase2+);Securityrelatednetworkfunctions".[5]GSM03.60:"Digitalcellulartelecommunicationssystem(Phase2+);GeneralPacketRadioService(GPRS);ServiceDescription;Stage2".[6]GSM03.64:"Digitalcellulartelecommunicationssystem(Phase2+);GeneralPacketRadioService(GPRS);OveralldescriptionoftheGPRSRadioInterface;Stage2".[7]GSM04.08:"Digitalcellulartelecommunicationssystem(Phase2+);Mobileradiointerfacelayer3-specification".[8]GSM04.64:"Digitalcellulartelecommunicationssystem(Phase2+);MobileStation-ServingGPRSSupportNode(MS-SGSN)LogicalLinkControl(LLC)LayerSpecification".[9]GSM09.02:"Digitalcellulartelecommunicationssystem(Phase2+);MobileApplicationPart(MAP)specification".[10]STD0005:"InternetProtocol",J.Postel.[11]STD0006:"UserDatagramProtocol",J.Postel.[12]STD0007:"TransmissionControlProtocol",J.Postel.[13]RFC1700:"AssignedNumbers",J.ReynoldsandJ.Postel.[14]RFC2181:"ClarificationstotheDNSSpecification",R.ElzandR.Bush.[15]ITU-TRecommendationX.25:"Interfacebetweendataterminalequipment(DTE)anddatacircuit-terminatingequipment(DCE)forterminalsoperatinginthepacketmodeandconnectedtopublicdatanetworksbydedicatedcircuit".SIST EN 301 347 V7.1.1:2003



ETSIETSIEN301347V7.1.1(2000-01)8(GSM09.60version7.1.1Release1998)[16]ITU-TRecommendationX.121:"InternationalNumberingPlanforPublicDataNetworks".3Definitionsandabbreviations3.1DefinitionsForthepurposeofthepresentdocument,thefollowingdefinitionsapply:ConditionalWhenthepresencerequirementfortheinformationelementisconditional,thereceivingprotocollevelcancheckthepresenceorabsenceofanIEbasedonthereceivedinformation.G-PDU:AT-PDUplusaGTPheader.AG-PDUissentinapath.GTP-Flow:AGTPflowisdefinedbytheunidirectionalvirtualaggregationofG-PDUsand/orsignallingmessagesrelatedtooneormoreGTPtunnels.AGTPflowisidentifiedbyaFlowLabelincludedintheGTPheader.ThemeaningoftheFlowLabelistransparentforthetransmitterside,onlythereceivermayevaluatetheFlowLabel.GTPtunnel:AGTPtunnelisdefinedbytwoassociatedPDPContextsindifferentGSNnodesandisidentifiedwithaTunnelID.AGTPtunnelisnecessarytoforwardpacketsbetweenanexternalpacketdatanetworkandaMSuser.MMContext:TheinformationsetsheldinMSandGSNsforaGPRSsubscriberrelatedtomobilitymanagement(MM)(pleaserefertotheMMContextInformationElement).MMContextID:IMSIorequivalentforuseinconjunctionwithAnonymousAccess(pleaserefertosectionGTPHeader).NSAPI:NetworkServiceAccessPointIdentifier.Anintegervalueintherange[0;15],identifyingacertainPDPContext.ItidentifiesaPDPcontextbelongingtoaspecificMMContextID.Path:TheUDP/IPpathandTCP/IPpathareexamplesofpathsthatmaybeusedtomultiplexGTPtunnels.PathProtocol:ThePathProtocolistheprotocol(s)usedasabearerofGTPbetweenGSNs.PDP:APacketDataProtocol(PDP)isanetworkprotocolusedbyanexternalpacketdatanetworkinterfacingtoGPRS.PDPContext:TheinformationsetsheldinMSandGSNsforaPDPaddress(pleaserefertothePDPContextInformationElement).QualityofService:QualityofServicemaybeapplicablefortheGPRSbackboneifthepathmediasupportsit.SeparatepathswithdifferentprioritiesmaybedefinedbetweenaGSNpair.However,thepossibleuseofQoSintheGGSNisoutsidethescopeoftheGTPspecification.Signallingmessage:GTPsignallingmessagesareexchangedbetweenGSNpairsinapath.ThesignallingmessagesareusedtotransferGSNcapabilityinformationbetweenGSNpairsandtocreate,updateanddeleteGTPtunnels.TCP/IPpath:ATCP/IPpathisareliableconnection-orientedpathdefinedbytwoend-pointsandanend-pointisdefinedbyanIPaddressandaTCPportnumber.TCP/IPpathsshouldbeusedwhentheT-PDUsarebasedonconnection-orientedprotocols,suchastheX.25packetlayerprotocol.T-PDU:Anoriginalpacket,forexampleanIPdatagram,fromaMSoranetworknodeinanexternalpacketdatanetwork.AT-PDUisthepayloadthatistunnelledintheGTPtunnel.TID:ATunnelID(TID)consistsofaMMContextIDandaNSAPI.SIST EN 301 347 V7.1.1:2003



ETSIETSIEN301347V7.1.1(2000-01)9(GSM09.60version7.1.1Release1998)UDP/IPpath:AUDP/IPpathisaconnection-lesspathdefinedbytwoend-pointsandanend-pointisdefinedbyanIPaddressandaUDPportnumber.AUDP/IPpathcarriesG-PDUsbetweenGSNnodesrelatedtooneormoreGTPtunnels.AUDP/IPpathshouldbeusedwhentheT-PDUsarebasedonconnection-lessprotocols,suchasIP.3.2AbbreviationsAbbreviationsusedinthepresentdocumentarelistedinGSM01.04.Forthepurposeofthepresentdocumentthefollowingadditionalabbreviationsapply:BBBackboneBearerDFDon’tFragmentFFSForFurtherStudyGTPGPRSTunnelingProtocolIANAInternetAssignedNumberAuthorityICMPInternetControlMessageProtocolIPInternetProtocolIPv4InternetProtocolversion4IPv6InternetProtocolversion6MTUMaximumTransmissionUnitQoSQualityofServiceTIDTunnelIDentifierTCPTransmissionControlProtocolUDPUserDatagramProtocolGninterfaceInterfacebetweenGPRSSupportNodes(GSNs)withinaPLMNGpinterfaceInterfacebetweenGPRSSupportNodes(GSNs)indifferentPLMNs4GeneralThisdocumentdefinestheGPRSTunnellingProtocol(GTP),i.e.theprotocolbetweenGSNnodesintheGPRSbackbonenetwork.ItincludesboththeGTPsignallinganddatatransferprocedures.ItalsoliststhemessagesandinformationelementsusedbytheGTPbasedchargingprotocolGTP’,whichisdescribedinGSM12.15.GTPisdefinedbothfortheGninterface,i.e.theinterfacebetweenGSNswithinaPLMN,andtheGpinterfacebetweenGSNsindifferentPLMNs.GTP’isdefinedfortheinterfacebetweenCDRgeneratingfunctionalnetworkelementsandChargingGateway(s)withinaPLMN.ChargingGateway(s)andGTP’protocolareoptional,astheChargingGatewayFunctionalitiesmayeitherbelocatedinseparatenetworkelements(ChargingGateways),oralternativelybeembeddedintotheCDRgeneratingnetworkelements(GSNs)whentheGSN-CGFinterfaceisnotnecessarilyvisibleoutsidethenetworkelement.TheseinterfacesrelevanttoGTParebetweenthegreyboxesshowninthefigurebelow.SIST EN 301 347 V7.1.1:2003



ETSIETSIEN301347V7.1.1(2000-01)10(GSM09.60version7.1.1Release1998)GiGnGcGpSignallingandDataTran
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