ITU X.37:1995
ITU X.37:1995 Encapsulation In X.25 Packets Of Various Protocols Including Frame Relay Defines the use of Packet Switched Data Transmission Service to transmit Protocol Data Units of various protocols.
Table of Contents
1Scope2References
3Termsanddefinitions
4Abbreviations
5General
5.1Encapsulationfunctionlocation
5.2Basicfeatures
5.3UseofX.75forPDNinterconnection
5.4Protocolstackonthelocalinterface
6CallSet-upprocedures
6.1General
6.2Callset-upconditions
6.3Codingofthecallrequestpacket
6.4Receptionoftheincomingcallpacket
6.5Codingofthecallacceptedpacket
6.6Receptionofthecallconnectedpacket
6.7Negotiationatcallset-up
6.8Callset-upcollision
7Callclearingprocedures
8DataTransferprocedure
8.1ReceptionofPDUfromthelocalinterface
8.2Encapsulationformat
8.3DatatransferontheX.25virtualcallonthenetwork
side
8.4Flowcontrol
9EncapsulationofFrameRelay
9.1GeneralPrinciples
9.2ProceduresforFrameRelaypermanentvirtualcircuit
9.3Proceduresforswitchedvirtualcall
9.4FRframestransferprocedure
10EncapsulationofIPdatagrams
10.1GeneralPrinciples
10.2Callset-upprocedures
10.3Callclearingprocedures
10.4IPdatagramstransferprocedure
10.5Flowcontrol
AnnexA-ProtocolImplementationConformanceStatement(PICS)
proforma
A.1InstructionsforcompletingthePICSproforma
A.2Identification
A.3ClaimedConformancetostandards
A.4CallSet-upprocedures
A.5Callclearingprocedures
A.6Datatransferprocedures
A.7EncapsulationofFrameRelay
A.8EncapsulationofIPdatagrams
A.9Otherinformation
AnnexB-Codingofclearingcauseanddiagnosticfields
generatedbyanencapsulationfunctioninclear
requestpacket
AppendixI-Applicationexamples
I.1Dynamicnegotiationoftheencapsulatedprotocol
I.2X.25DTE/X.36DTEinterworkingforagivenencapsulated
protocol
I.3X.25DTE/X.36DTEinterworkingformulti-protocol
encapsulation
AppendixII-Technicaldiscussion
II.1Modeofoperationforthemulti-PDUtransfer
II.2Flowcontrol
II.3FlowcontrolfortheFRcase
AppendixIII-Protocolidentificationmechanismfordata
packetswhentheQ-bitisused