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ITU I.365.3:1995

ITU I.365.3:1995 Service Specific Coordination Function To Provide The Connection-oriented Transport Service This document specifies a particular function that is part of the ATM Adaptation Layer to support the OSI Connection Oriented Transport Service (COTS) within the B-ISDN. It is used to map the service

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Table of Contents

1Scope
2NormativeReferences
3Definitions
4Abbreviations
5Conventions
6GeneralDescription
7ServicesprovidedbytheSSCF-COTS
8FunctionsoftheSSCF-COTS
9Elementsoflayer-to-layercommunication
9.1PrimitivesbetweenSSCF-COTSandSCF
9.1.1Definitionofprimitives
9.1.2Parameterdefinition
9.2SignalsbetweenSSCF-COTSandSSCF-COTSLayer
Management
9.2.1Signaldefinition
9.2.2Parameterdefinition
9.2.3StatesattheboundarybetweenSSCF-COTSand
LayerManagement
9.3SignalsbetweenSSCF-COTSandSSCOP
9.3.1Definitionofsignals
9.3.2Parameterdefinition
9.4Statetransitiondiagramforsequenceofsignals
atthelayerboundariesofSSCF-COTS
10Protocolelementsforpeer-to-peercommunication
10.1SSCF-COTSPDUs
10.1.1SSCF-COTSPDUsutilizingtheunassured
datatransfer
10.1.2SSCF-COTSPDUsutilizingtheassured
datatransfer
10.1.3SSCF-COTSPDUsutilizingdatatransfer
capabilitiesinSSCOPconnectioncontrol
services
10.2SSCF-COTSPDUformats
10.2.1Codingconventions
10.2.2PDUlength
10.3SSCF-COTSPDUfields
10.4SSCF-COTSstatevariables
10.4.1Transmitterstatevariables
10.4.2Receiverstatevariables
10.4.3Commonstatevariables
10.5SSCF-COTStimers
10.6SSCF-COTSprotocolparameter
11SpecificationoftheSSCF-COTS
11.1Overview
11.1.1Idle
11.1.2Establishmentandrelease
11.1.3Datatransfer
11.2Statetransitiontable
11.3SDLdiagrams
AnnexA-Managementerrorindications
AnnexB-DefaultvaluesforSSCOPparametersandtimers
AnnexC-ExpeditedDataTransferservice
C.1Protocolelementsforpeer-to-peercommunication
C.1.1SSCF-COTSPDUs
C.1.2SSCF-COTSPDUformats
C.1.3SSCF-COTSPDUparameterfields
C.1.4AdditionalstatesoftheSSCF-COTSprotocol
entity
C.1.5AdditionalSSCF-COTSstatevariables
C.1.6SSCF-COTStimers
C.2SpecificationoftheExpeditedDataserviceprocedure
AnnexD-QualityofServiceparameternegotiation
D.1Parametersandtheirnegotiationforthe"Empty"
QOSset
D.2Parametersandtheirnegotiationforthe"Standard
CONS"QOSset
D.2.1QOSparametersattheSSCF-COTS/SSCF-COTSuser
boundary
D.2.2NegotiationofQOSParameters
AnnexE-SupplementaryspecificationfortheSCF
(RecommendationQ.923)
E.1AdaptationoftheprimitivenamestotheTransport
Service
E.1.1Introduction
E.1.2Abbreviations
E.1.3Interpretation
E.1.4X.214typeofservice
E.1.5SummaryoftheSub-N-Serviceprimitivesatthe
N(c)Cendpoint
E.1.6DeletionoftheResetservice
E.1.7Statetransitiontable
E.2Selectionofpredicates
E.3MappingoftheC-planeSub-N-Service
AppendixI-T(u)-primitivesequencesattheUNIforconnection
establishmentandreleasewithintheU-planeand
theirrelationshiptoAA-signalsandSSCOPPDU
sequences
AppendixII-Furtherconsiderationsforthedefaultvalues
fortheSSCOPparametersandtimers
II.1Definitions
II.2Goal
II.3Framesize
II.4QualitativeAnalysis
II.4.1Assumptions
II.4.2Timingintheabsenceoferrors
II.4.3Timingforsinglecorrupteddataframe
correction
II.4.4TimingforsinglecorruptedPOLLorSTATPDU
II.4.5Multipleerrors
II.5Conclusion

Abstract

This document specifies a particular function that is part of the ATM Adaptation Layer to support the OSI Connection Oriented Transport Service (COTS) within the B-ISDN. It is used to map the service of the Service Specific Connection Oriented Protocol (SSCOP) of the AAL to the requirements of a Transport Service as described in Recommendation X.214 [7]. The function is Service Specific Coordination Function to provide COTS

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