CONTENTS

 1     Scope
 2     Normative references
 3     Definitions
 4     Abbreviations
 5     Conventions
 6     Framework of AAL type 3/4
 7     Service provided by the Common Part of the AAL type 3/4
        7.1     Primitives for the AAL type 3/4
        7.2     Primitives for the CPCS of the AAL type 3/4
                  7.2.1     Primitives for the data transfer service
                  7.2.2     Primitives for the abort service
        7.3     Primitives for the SAR sublayer of the AAL type 3/4
                  7.3.1     Primitives for the data transfer service
                  7.3.2     Primitives for the abort service
 8     Interaction with the management and control plane
        8.1     Management plane
        8.2     Control plane
 9     Functions, structure and coding of the AAL type 3/4
        9.1     Segmentation and Reassembly (SAR) sublayer
                  9.1.1     Functions of the SAR sublayer
                  9.1.2     SAR-PDU structure and coding
        9.2     Convergence Sublayer (CS)
                  9.2.1     Functions, structure and coding for the CPCS
10     Procedures
       10.1     Procedures of the SAR sublayer
                 10.1.1     State variables of the SAR sublayer at the sender side
                 10.1.2     Procedures of the SAR sublayer at the sender side
                 10.1.3     State variables of the SAR sublayer at the receiver side
                 10.1.4     Procedures of the SAR sublayer at the receiver side
       10.2     Procedures of the CPCS for the message mode service
                 10.2.1     State variables of the CPCS at the sender side
                 10.2.2     Procedures of the CPCS at the sender side for the message mode service
                 10.2.3     State variables of the CPCS at the receiver side
                 10.2.4     Procedures of the CPCS at the receiver side
       10.3     Procedures of the CPCS for the streaming mode service
Annex A – Details of the data unit naming convention
Annex B – General framework of the AAL type 3/4
        B.1     Message segmentation and reassembly
        B.2     PDU headers, trailers and terminology
        B.3     SAR and CPCS format
        B.4     Relation of the MID field to the SN field and Btag/Etag fields
        B.5     Examples of the segmentation and reassembly process
Annex C – Functional model for the AAL type 3/4
Annex D – SDL diagrams for the SAR and the CPCS of the AAL type 3/4
        D.1     SDL for the SAR sublayer
                  D.1.1     The SAR sender
                  D.1.2     The SAR receiver
        D.2     SDL for CPCS procedures
                  D.2.1     The CPCS sender
                  D.2.2     The CPCS receiver
Appendix I – Multiplexing AAL type 3/4 connections on an ATM connection using the MID field
        I.1     Introduction
        I.2     Multiplexing configurations
                  I.2.1     Point-to-point AAL connection on a point-to-point ATM connection
                  I.2.2     Point-to-point AAL connection on a point-to-multipoint ATM connection
                  I.2.3     Point-to-point AAL connection on a multipoint-to-multipoint ATM-connection
                  I.2.4     Point-to-multipoint AAL connection on a point-to-multipoint ATM-connection
                  I.2.5     Point-to-multipoint AAL connection on a multipoint-to-multipoint ATM-connection