GTPv2协议描述.docx
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GTPv2协议描述.docx
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GTPv2协议描述
GTPv2-协议描述
3GPPTS29.274V13.1.0(2021-03)
TechnicalSpecification
3rdGenerationPartnershipProject;
TechnicalSpecificationGroupCoreNetworkandTerminals;
3GPPEvolvedPacketSystem(EPS);
EvolvedGeneralPacketRadioService(GPRS)TunnellingProtocolforControlplane(GTPv2-C);
Stage3(Release13)
Thepresentdocumenthasbeendevelopedwithinthe3rdGenerationPartnershipProject(3GPPTM)andmaybefurtherelaboratedforthepurposesof3GPP..Thepresentdocumenthasnotbeensubjecttoanyapprovalprocessbythe3GPPOrganizationalPartnersandshallnotbeimplemented.
ThisSpecificationisprovidedforfuturedevelopmentworkwithin3GPPonly.TheOrganizationalPartnersacceptnoliabilityforanyuseofthisSpecification.Specificationsandreportsforimplementationofthe3GPPTMsystemshouldbeobtainedviathe3GPPOrganizationalPartners'PublicationsOffices.
Release1323GPPTS29.274V13.1.0(2021-03)
Keywords
GSM,UMTS,packetmode,GPRS,LTE
3GPPPostaladdress
3GPPsupportofficeaddress
650RoutedesLucioles-SophiaAntipolis
Valbonne-FRANCE
Tel.:
+33492944200Fax:
+33493654716
Internet
http:
//www.3gpp.org
CopyrightNotification
Nopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.
?
2021,3GPPOrganizationalPartners(ARIB,ATIS,CCSA,ETSI,TSDSI,TTA,TTC).
Allrightsreserved.
UMTS?
isaTradeMarkofETSIregisteredforthebenefitofitsmembers
3GPP?
isaTradeMarkofETSIregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartners
LTE?
isaTradeMarkofETSIcurrentlybeingregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartnersGSM?
andtheGSMlogoareregisteredandownedbytheGSMAssociation
3GPP
Release1333GPPTS29.274V13.1.0(2021-03)
Contents
Foreword...........................................................................................................................................................10123
3.13.23.3
Scope......................................................................................................................................................11References..............................................................................................................................................11Definitions,symbolsandabbreviations.................................................................................................14Definitions.......................................................................................................................................................14Symbols...........................................................................................................................................................14Abbreviations...................................................................................................................................................14
4
General...................................................................................................................................................16
4.1GTPTunnel.....................................................................................................................................................164.2Protocolstack...................................................................................................................................................164.2.0General.......................................................................................................................................................164.2.1UDPheaderandportnumbers...................................................................................................................174.2.1.0General.................................................................................................................................................174.2.1.1InitialMessages....................................................................................................................................184.2.1.2TriggeredMessages..............................................................................................................................184.2.1.3PiggybackedMessages.........................................................................................................................184.2.2IPheaderandIPaddresses.........................................................................................................................184.2.2.1InitialMessages....................................................................................................................................184.2.2.2TriggeredMessages..............................................................................................................................194.2.2.3PiggybackedMessages.........................................................................................................................194.2.3Layer2.......................................................................................................................................................194.2.4Layer1.......................................................................................................................................................194.2.5MessageswithGTPv2definedreplies:
ClassificationofInitialandTriggeredMessages.........................194.3TransmissionOrderandBitDefinitions..........................................................................................................205
GTPHeaderforControlPlane...............................................................................................................205.1Generalformat.................................................................................................................................................205.2ControlPlaneGTPExtensionHeader.............................................................................................................215.3GTP-CheaderforEchoandVersionNotSupportedIndicationmessages......................................................215.4EPCspecificGTP-Cheader.............................................................................................................................215.5UsageoftheGTPv2-CHeader........................................................................................................................225.5.1General.............................................................................................................................................................225.5.2ConditionsforsendingTEID=0inGTPv2-Cheader.................................................................................235.6FormatoftheGTPv2-CMessage....................................................................................................................2466.06.1
GTP-CMessageTypesandMessageFormats.......................................................................................25General...................................................................................................................................................25MessageFormatandTypevalues....................................................................................................................25MessageType.............................................................................................................................................25PresencerequirementsofInformationElements........................................................................................28GroupedInformationElements..................................................................................................................29InformationElementinstance....................................................................................................................30MessageGranularity........................................................................................................................................30GTP-Cmessages..............................................................................................................................................31PathManagementMessages............................................................................................................................31General.......................................................................................................................................................31EchoRequest..............................................................................................................................................31EchoResponse...........................................................................................................................................31VersionNotSupportedIndication..............................................................................................................32TunnelManagementMessages........................................................................................................................32General.......................................................................................................................................................32CreateSessionRequest..............................................................................................................................32CreateSessionResponse............................................................................................................................46CreateBearerReq
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