ETSI EN 301 347 V6.8.1 (2000-12)

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 6.8.1 Release 1997)

REN/TSGN-040960Q6R3

Digitalni celični telekomunikacijski sistem (faza 2+) – Splošna radijska storitev s paketiranimi podatki (GPRS) – Protokol tuneliranja v GPRS (GTP) prek vmesnika Gn in Gp (GSM 09.60, različica 6.8.1, izdaja 1997)

General Information

• Status: Published
• Publication Date: 03-Jan-2001
• Technical Committee: 3GPP CN 4 - MAP/GTP/BCH/SS
• Current Stage: 12 - Completion
• Due Date: 08-Dec-2000
• Completion Date: 04-Jan-2001
• Mandate: BC-T-330
• Ref Project: SIST EN 301 347 V6.8.1:2003 - 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 6.8.1 Release 1997)

Standards Content (Sample)

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 6.8.1 Release 1997)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 6.8.1SIST EN 301 347 V6.8.1:2003en01-december-2003SIST EN 301 347 V6.8.1:2003SLOVENSKI
STANDARD



SIST EN 301 347 V6.8.1:2003



ETSIEN301347V6.8.1(2000-12)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);GeneralPacketRadioService(GPRS);GPRSTunnellingProtocol(GTP)acrosstheGnandGpInterface(GSM09.60version6.8.1Release1997)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 301 347 V6.8.1:2003



ETSIETSIEN301347V6.8.1(2000-12)2(GSM09.60version6.8.1Release1997)ReferenceREN/TSGN-040960Q6R3KeywordsDigitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM)ETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:[phone]Fax:[phone]SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:[e-mail]opartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 301 347 V6.8.1:2003



ETSIETSIEN301347V6.8.1(2000-12)3(GSM09.60version6.8.1Release1997)ContentsIntellectualPropertyRights.6Foreword.61Scope.72References.73Definitionsandabbreviations.83.1Definitions.83.2Abbreviations.94General.95Transmissionorderandbitdefinitions.106GTPheader.117SignallingPlane.127.1Signallingprotocol.127.2SignallingMessageFormats.137.3UsageoftheGTPHeader.137.4PathManagementmessages.147.4.1EchoRequest.147.4.2EchoResponse.147.4.3VersionNotSupported.157.5TunnelManagementmessages.157.5.1CreatePDPContextRequest.157.5.2CreatePDPContextResponse.177.5.3UpdatePDPContextRequest.187.5.4UpdatePDPContextResponse.197.5.5DeletePDPContextRequest.207.5.6DeletePDPContextResponse.217.5.7CreateAAPDPContextRequest.217.5.8CreateAAPDPContextResponse.227.5.9DeleteAAPDPContextRequest.247.5.10DeleteAAPDPContextResponse.247.5.11ErrorIndication.247.5.12PDUNotificationRequest.257.5.13PDUNotificationResponse.257.5.14PDUNotificationRejectRequest.267.5.15PDUNotificationRejectResponse.277.6LocationManagementmessages.277.6.1SendRouteingInformationforGPRSRequest.287.6.2SendRouteingInformationforGPRSResponse.287.6.3FailureReportRequest.297.6.4FailureReportResponse.297.6.5NoteMSGPRSPresentRequest.307.6.6NoteMSGPRSPresentResponse.307.7MobilityManagementmessages.307.7.1IdentificationRequest.317.7.2IdentificationResponse.317.7.3SGSNContextRequest.327.7.4SGSNContextResponse.327.7.5SGSNContextAcknowledge.337.8Reliabledeliveryofsignallingmessages.347.9Informationelements.347.9.1Cause.357.9.2InternationalMobileSubscriberIdentity(IMSI).377.9.3RouteingAreaIdentity(RAI).37SIST EN 301 347 V6.8.1:2003



ETSIETSIEN301347V6.8.1(2000-12)4(GSM09.60version6.8.1Release1997)7.9.4TemporaryLogicalLinkIdentity(TLLI).387.9.5PacketTMSI(P-TMSI).387.9.6QualityofService(QoS)Profile.387.9.7ReorderingRequired.397.9.8AuthenticationTriplet.397.9.9MAPCause.397.9.10P-TMSISignature.407.9.11MSValidated.407.9.12Recovery.407.9.13Selectionmode.417.9.14FlowLabelDataI.417.9.15FlowLabelSignalling.417.9.16FlowLabelDataII.427.9.17ChargingID.427.9.18EndUserAddress.427.9.19MMContext.447.9.20PDPContext.457.9.21AccessPointName.487.9.22ProtocolConfigurationOptions.487.9.23GSNAddress.487.9.24MSInternationalPSTN/ISDNNumber(MSISDN).497.9.25PrivateExtension.498TransmissionPlane.498.1ProtocolStack.508.1.1UsageoftheGTPHeader.508.1.1.1UsageoftheSequenceNumber.508.2TunnellingbetweenSGSNs.518.3TunnellingbetweenGGSNs.519PathProtocols.519.1UDP/IP.519.1.1UDPHeader.519.1.1.1Signallingrequestmessages.519.1.1.2Signallingresponsemessages.519.1.1.3EncapsulatedT-PDUs.519.1.2IPHeader.519.1.2.1SignallingrequestmessagesandEncapsulatedT-PDUs.519.1.2.2Signallingresponsemessages.529.2TCP/IP.529.2.1TCPHeader.529.2.2IPHeader.5210Errorhandling.5210.1Protocolerrors.5210.1.1DifferentGTPversions.5310.1.2GTPMessagetooshort.5310.1.3UnknownGTPsignallingmessage.5310.1.4UnexpectedGTPsignallingmessage.5310.1.5Missingmandatorilypresentinformationelement.5310.1.6InvalidLength.5310.1.7Invalidmandatoryinformationelement.5310.1.8Invalidoptionalinformationelement.5310.1.9Unknowninformationelement.5410.1.10Outofsequenceinformationelements.5410.1.11Unexpectedinformationelement.5410.1.12Repeatedinformationelements.5410.1.13Incorrectoptionalinformationelements.5410.2Pathfailure.5410.3MSdetach.5410.4RestorationandRecovery.54SIST EN 301 347 V6.8.1:2003



ETSIETSIEN301347V6.8.1(2000-12)5(GSM09.60version6.8.1Release1997)11Inter-PLMNGTPcommunicationovertheGpinterface.5512IP,thenetworkingtechnologyusedbyGTP.5512.1IPversion.5512.2IPfragmentation.5512.2.1MOdirection.5512.2.2MTdirection.5512.2.3TunnellingfromoldtonewSGSN.5613GTPparameters.5613.1Timers.5613.2Others.56AnnexA(informative):Namingconvention.61A.1RoutingAreaIdentities.61A.2GPRSSupportNodes.61AnnexB(informative):Amethodforsequencenumberchecking.62AnnexC(informative):Documentchangehistory.63History.64SIST EN 301 347 V6.8.1:2003



ETSIETSIEN301347V6.8.1(2000-12)6(GSM09.60version6.8.1Release1997)IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinETSISR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinETSISR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeSpecialMobileGroup(SMG).ThepresentdocumentdefinestheGnandGpinterfacesfortheGeneralPacketRadioService(GPRS)withinthedigitalcellulartelecommunicationssystem(Phase2+).ThecontentsofthepresentdocumentaresubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocument,itwillthenbere-submittedforOAPbyETSIwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version6.x.ywhere:6indicatesRelease1997ofGSMPhase2+.xtheseconddigitisincrementedforallchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthisEN:1December2000DateoflatestannouncementofthisEN(doa):31March2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30September2001DateofwithdrawalofanyconflictingNationalStandard(dow):30September2001SIST EN 301 347 V6.8.1:2003



ETSIETSIEN301347V6.8.1(2000-12)7(GSM09.60version6.8.1Release1997)1ScopeThepresentdocumentdefinestheGnandGpinterfacesfortheGeneralPacketRadioService(GPRS).2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.• ForthisRelease1997document,referencestoGSMdocumentsareforRelease1997versions(version6.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".SIST EN 301 347 V6.8.1:2003



ETSIETSIEN301347V6.8.1(2000-12)8(GSM09.60version6.8.1Release1997)[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".[16]ITU-TRecommendationX.121:"InternationalNumberingPlanforPublicDataNetworks".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply:conditional:whenthepresencerequirementfortheinformationelementisconditional,thereceivingprotocollevelcancheckthepresenceorabsenceofanIEbasedonthereceivedinformationG-PDU:T-PDUplusaGTPheader.AG-PDUissentinapathGTP-Flow:GTPflowisdefinedbytheunidirectionalvirtualaggregationofG-PDUsand/orsignallingmessagesrelatedtooneormoreGTPtunnels.AFlowLabelincludedintheGTPheaderidentifiesaGTPflow.ThemeaningoftheFlowLabelistransparentforthetransmitterside,onlythereceivermayevaluatetheFlowLabelGTPtunnel:GTPtunnelisdefinedbytwoassociatedPDPContextsindifferentGSNnodesandisidentifiedwithaTunnelID.AGTPtunnelisnecessarytoforwardpacketsbetweenanexternalpacketdatanetworkandanMSuserMMContext:informationsetsheldinMSandGSNsforaGPRSsubscriberrelatedtomobilitymanagement(MM)(pleaserefertotheMMContextInformationElement)MMContextID:IMSIorequivalentforuseinconjunctionwithAnonymousAccess(pleaserefertosectionGTPHeader)NSAPI:NetworkServiceAccessPointIdentifier.Anintegervalueintherange[0;15],identifyingacertainPDPContext.ItidentifiesaPDPcontextbelongingtoaspecificMMContextIDpath:UDP/IPpathandTCP/IPpathareexamplesofpathsthatmaybeusedtomultiplexGTPtunnelspathprotocol:PathProtocolistheprotocol(s)usedasabearerofGTPbetweenGSNsPDP:PacketDataProtocol(PDP)isanetworkprotocolusedbyanexternalpacketdatanetworkinterfacingtoGPRSPDPContext:informationsetsheldinMSandGSNsforaPDPaddress(pleaserefertothePDPContextInformationElement)qualityofservice:QualityofServicemaybeapplicablefortheGPRSbackboneifthepathmediasupportsit.SeparatepathswithdifferentprioritiesmaybedefinedbetweenaGSNpair.However,thepossibleuseofQoSintheGGSNisoutsidethescopeoftheGTPspecificationsignallingmessage:GTPsignallingmessagesareexchangedbetweenGSNpairsinapath.ThesignallingmessagesareusedtotransferGSNcapabilityinformationbetweenGSNpairsandtocreate,updateanddeleteGTPtunnelsTCP/IPpath:TCP/IPpathisareliableconnection-orientedpathdefinedbytwoend-pointsandanend-pointisdefinedbyanIPaddressandaTCPportnumber.TCP/IPpathsshouldbeusedwhentheT-PDUsarebasedonconnection-orientedprotocols,suchastheX.25packetlayerprotocolSIST EN 301 347 V6.8.1:2003



ETSIETSIEN301347V6.8.1(2000-12)9(GSM09.60version6.8.1Release1997)T-PDU:originalpacket,forexampleanIPdatagram,fromanMSoranetworknodeinanexternalpacketdatanetwork.AT-PDUisthepayloadthatistunnelledintheGTPtunnelTID:TunnelID(TID)consistsofaMMContextIDandaNSAPIUDP/IPpath:UDP/IPpathisaconnection-lesspathdefinedbytwoend-pointsandanend-pointisdefinedbyanIPaddressandaUDPportnumber.AUDP/IPpathcarriesG-PDUsbetweenGSNnodesrelatedtooneormoreGTPtunnels.AUDP/IPpathshouldbeusedwhentheT-PDUsarebasedonconnection-lessprotocols,suchasIP3.2AbbreviationsAbbreviationsusedinthepresentdocumentarelistedinGSM01.04.Forthepurposesofthepresentdocument,thefollowingadditionalabbreviationsapply:BBBackboneBearerDFDon'tFragmentFFSForFurtherStudyGninterfaceInterfacebetweenGPRSSupportNodes(GSNs)withinaPLMNGpinterfaceInterfacebetweenGPRSSupportNodes(GSNs)indifferentPLMNsGTPGPRSTunnelingProtocolIANAInternetAssignedNumberAuthorityICMPInternetControlMessageProtocolIPInternetProtocolIPv4InternetProtocolversion4IPv6InternetProtocolversion6MTUMaximumTransmissionUnitQoSQualityofServiceTCPTransmissionControlProtocolTIDTunnelIDentifierUDPUserDatagramProtocol4GeneralThepresentdocumentdefinestheGPRSTunnellingProtocol(GTP),i.e.theprotocolbetweenGSNnodesintheGPRSbackbonenetwork.ItincludesboththeGTPsignallinganddatatransferprocedures.GTPisdefinedbothfortheGninterface,i.e.theinterfacebetweenGSNswithinaPLMN,andtheGpinterfacebetweenGSNsindifferentPLMNs.TheseinterfacesrelevanttoGTParebetweenthegreyboxesshowninthefigurebelow.SIST EN 301 347 V6.8.1:2003



ETSIETSIEN301347V6.8.1(2000-12)10(GSM09.60version6.8.1Release1997)GiGnGcGpSignallingandDataTransferInterfaceSignallingInterfaceTEPDNUmGbTEMTBSSRGrorGcHLROtherPLMNSGSNGGSNSGSNGTP-MAPprotocolconvertingGSNGnUmGbTEMTBSSRSGSNGnFigure1:GPRSLogicalArchitecturewithinterfacenamedenotationsGTPallowsmultiprotocolpacketstobetunnelledthroughtheGPRSBackbonebetweenGPRSSupportNodes(GSNs).Inthesignallingplane,GTPspecifiesatunnelcontrolandmanagementprotocolthatallowstheSGSNtoprovideGPRSnetworkaccessforaMS.Signallingisusedtocreate,modifyanddeletetunnels.Inthetransmissionplane,GTPusesatunnellingmechanismtoprovideaserviceforcarryinguserdatapackets.Thechoiceofpathisdependentonwhethertheuserdatatobetunnelledrequiresareliablelinkornot.TheGTPprotocolisimplementedonlybySGSNsandGGSNs.NoothersystemsneedtobeawareofGTP.GPRSMSsareconnectedtoaSGSNwithoutbeingawareofGTP.Itisassumedthattherewillbeamany-to-manyrelationshipbetweenSGSNsandGGSNs.ASGSNmayprovideservicetomanyGGSNs.AsingleGGSNmayassociatewithmanySGSNstodelivertraffictoalargenumberofgeographicallydiversemobilestations.5TransmissionorderandbitdefinitionsThemessagesinthepresentdocumentshallbetransmittedinnetworkoctetorderstartingwithoctet1.ThemostsignificantbitofanoctetinaGTPmessageisbit8.IfavalueinaGTPmessagespansseveraloctetsandnothingelseisstated,themostsignificantbitisbi
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