1 Introduction
1.1 Scope of the Recommendation
2
AAL type 1
2.1 Services provided by AAL type 1
2.1.1 Definitions
2.1.2 Primitives between AAL type 1 and the AAL
user
2.1.3
Information flow across the ATM-AAL boundary
2.1.4 Primitives between the SAR sublayer and
the CS
2.2 Interaction with the management and control planes
2.2.1 Management plane
2.2.2 Control plane
2.3 Functions of AAL type 1
2.4 Segmentation and Reassembly (SAR) sublayer
2.4.1 Functions of the SAR sublayer
2.4.2 SAR protocol
2.5 Convergence Sublayer
(CS)
2.5.1 Functions of the CS
2.5.2 Convergence Sublayer (CS) protocol
Annex A – Alphabetical list of abbreviations
Annex B – Data unit naming convention
Annex C – Encoding and information transfer principles
C.1 Cell payload field encoding
C.2 AAL user information transfer
Appendix I – Functional model and SDL of AAL type 1
I.1 Functional model of the SAR
I.2 SDL of the SAR
Appendix II – Informative and example parameters for AAL type 1 protocol
II.1 Circuit transport
II.1.1 Transport of digital channel supported by
64 kbit/s-based ISDN
II.1.2 Transport of G.702 PDH circuit
II.1.3
Transport of G.709 SDH circuit
II.2 Video signal transport
II.3 Voiceband signal transport
Appendix III – Informative and example operations for handling of
lost/misinserted cells and for maintaining bit count integrity
III.1 Introduction
III.2 Sequence number processing
III.2.1 General
III.2.2 Indications from the SAR sublayer
III.2.3 Capabilities of the algorithm
III.2.4 The algorithms
III.3 Mechanisms to maintain bit-count integrity and basic handling
of lost/misinserted cells
III.3.1 Buffer-fill level monitoring
III.3.2 Cell Arrival Monitoring