CONTENTS

 1     Scope
 2     References
 3     Abbreviations and terminology
        3.1     Abbreviations
        3.2     Terminology
        3.3     External terminology
 4     Introduction
        4.1     General
        4.2     General objectives
        4.3     Generic functions
        4.4     A reference configuration for traffic control and congestion control
        4.5     Events, actions, time-scales and response times
        4.6     Quality of service and network performance
 5     Traffic parameters and descriptors
        5.1     Definitions
                  5.1.1     Traffic parameters
                  5.1.2     Traffic descriptors
        5.2     Requirements
        5.3     Traffic contract
                  5.3.1     Traffic contract definition
                  5.3.2     Traffic contract and quality of service
                  5.3.3     Traffic contract and cell loss priority
                  5.3.4     Traffic contract and tagging
                  5.3.5     Impact of cell delay variation on UPC/NPC and resource allocation
        5.4     Traffic parameter specifications
                  5.4.1     Peak cell rate
                  5.4.2     Sustainable cell rate
                  5.4.3     Specification of other traffic parameters
                  5.4.4     Traffic characteristics relevant to ATCs
 6     ATM transfer capabilities
        6.1     General
                  6.1.1     Definition and requirements
                  6.1.2     ATCs and multiplexing
        6.2     High level description of ATM transfer capabilities
                  6.2.1     Deterministic transfer capability – DBR
                  6.2.2     Statistical bit rate transfer capability – SBR
                  6.2.3     ATM block transfer – ABT
                  6.2.4     Available Bit Rate – ABR
        6.3     Applicability of ATM transfer capabilities to applications
        6.4     Deterministic bit rate transfer capability (DBR)
                  6.4.1     Definition and service model
                  6.4.2     Options regarding source traffic descriptor and conformance definition
                  6.4.3     Source traffic descriptor
                  6.4.4     CDV tolerances
                  6.4.5     Conformance definition
                  6.4.6     QOS aspects
        6.5     Statistical bit rate transfer capability (SBR)
                  6.5.1     Definition and service model
                  6.5.2     Source traffic descriptor and CDV tolerances
                  6.5.3     Conformance definition and QOS commitments
        6.6     ATM block transfer capabilities (ABT)
                  6.6.1     ABT with delayed transmission (ABT/DT)
                  6.6.2     ABT with immediate transmission (ABT/IT)
        6.7     Available bit rate transfer capability (ABR)
                  6.7.1     Definition and service model
                  6.7.2     Source traffic descriptor and CDV tolerances
                  6.7.3     Additional ABR traffic parameters used in the reference behaviour
                  6.7.4     Dynamically changing traffic parameters and RM cell format for ABR
                  6.7.5     Conformance definition and QOS commitments for ABR
 7     Functions for traffic control and congestion control
        7.1     Introduction
                  7.1.1     Traffic control and congestion control functions
        7.2     Traffic control functions
                  7.2.1     Use of virtual paths for network resource management
                  7.2.2     Connection admission control
                  7.2.3     Usage parameter control and network parameter control
                  7.2.4     Discard priority control
                  7.2.5     Frame discard
                  7.2.6     Scheduling control
                  7.2.7     Traffic shaping
                  7.2.8     Fast Resource Management (FRM)
        7.3     Congestion control functions
                  7.3.1     Discard priority control
                  7.3.2     Explicit forward congestion indication
                  7.3.3    Reaction to UPC/NPC failures
                  7.3.4     Frame discard
                  7.3.5     Scheduling control
        7.4     Traffic control interworking functions
                  7.4.1     Traffic control interworking with FMBS
 8     Procedures for traffic control and congestion control
        8.1     Resource management cell format
        8.2     RM Cell Error Conditions
Annex A - Generic Cell Rate Algorithm GCRA(T,t)
Annex B - Application of the GCRA to SBR conformance definition
Annex C - ABT/DT control messages across a standardized interface
Annex D - ABT/IT control messages across a standardized interface
Annex E - Avoidance of multiple outstanding BCR negotiations
Annex F - ABR control messages across a standardized interface
Appendix I - Examples of application of the equivalent terminal for the peak cell rate definition
Appendix II - Transcoding rules from signalling information onto OAM traffic parameters at the ATM layer
Appendix III - Throughput behaviour of the generic cell rate algorithm (GCRA)
Appendix IV - UPC/NPC accuracy requirements
Appendix V - Examples of methods ensuring unicity of RM cell numbering in ABT
        V.1     Segmentation of the SN field between different networks
        V.2     Proprietary handling of SN field
        V.3     Segmentation of the SN field for indicating relative location of RM cell
Appendix VI - Derivation of conformance definition parameters for ABT
Appendix VII - Source, destination, and network element reference behaviours for ABR
      VII.1     Source reference behaviour
      VII.2     Destination reference behaviour
      VII.3     Network element reference behaviour
      VII.4     Impact of source reference behaviour on traffic characteristics
Appendix VIII - 2‑store algorithm for determination of T(k) in ABR explicit mode
Appendix IX - Applicability of ATM Transfer Capabilities to applications