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ITU Q.2120:1995

ITU Q.2120:1995 B-isdn Meta-signalling Protocol Specifies the B-ISDN Meta-signalling protocol and procedures. The Meta-signalling protocol and procedures define the activity that assigns Signalling Virtual Channels on the B-ISDN User Network Interf

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Table of Contents

1Scopeandapplication
1.1Scope
1.2Application
2References
3Definitions
4AbbreviationsandAcronyms
5General
6Protocolmodel
6.1ModellingofMeta-signalling
6.2Meta-signallingATMLMEservicedefinition
6.3ServicesprovidedtotheATMLMEbytheATMlayer
7Meta-signallingmessages
7.1ASSIGNREQUEST
7.2ASSIGNED
7.3DENIED
7.4CHECKREQUEST
7.5CHECKRESPONSE
7.6REMOVED
8Parameters
8.1ProtocolDiscriminator(PD)
8.2ProtocolVersion(PV)
8.3MessageType(MT)
8.4ReferenceIdentifier(RI)
8.5SignallingConfiguration(SCON)
8.6SignallingVirtualChannelIdentifierA(SVCIA)
8.7SignallingVirtualChannelIdentifierB(SVCIB)
8.8Point-to-pointsignallingvirtualchannelCell
Rate(PCR)
8.9Cause(CAU)
8.10ServiceProfileIdentifier(SPID)
8.11CyclicRedundancyCheck(CRC)
9Meta-signallingmessageformattingandcoding
9.1Formattingprinciples
9.2Formatsandcodes
9.3Coding
10ProsedescriptionofMeta-signallingprocedures
10.1Introduction
10.2Focusedmessageprevention
10.3Generalparameterexaminationprocedure
10.4Assignmentprocedure
10.5Checkprocedure
10.6Removalprocedure
11Timers
11.1Timerdefinitions
AnnexA-Stateoverviewdiagrams
AnnexB-SDLdescriptionofMeta-signallingprocedures
AnnexC-Dynamicsignallingconfigurationcontrol
C.1Introduction
C.2Meta-signallingprocedures
AnnexD-ProtocolImplementationConformanceStatement
(PICS)proformatoRecommendationQ.2120
(useryside)
D.1General
D.2Abbreviationsandspecialsymbols
D.3InstructionsforcompletingthePICSproforma
D.4Globalstatementofconformance
D.5ProtocolCapabilities(PC)
D.6Messages-Protocoldataunits(MS)
D.7SystemParameters(SP)

Abstract

Specifies the B-ISDN Meta-signalling protocol and procedures. The Meta-signalling protocol and procedures define the activity that assigns Signalling Virtual Channels on the B-ISDN User Network Interface (UNI).

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