CONTENTS

1 Scope
2 Normative references
3 Abbreviations
4 General
5 Functions of the SSCOP
6 Elements for layer to layer communication
6.1 Signals between SSCOP and SSCF, and SSCOP and SSCS layer management
6.2 State transition diagram for sequences of signals
6.3 Signals between SSCOP and CPCS
7 Protocol elements for peer-to-peer communications
7.1 SSCOP PDUs
7.2 SSCOP PDU formats
7.3 States of SSCOP protocol entity
7.4 SSCOP state variables
7.5 SSCOP PDU parameters
7.6 SSCOP timers
7.7 SSCOP parameters
7.8 SSCOP credit and flow control
8 Specification of SSCOP
8.1 Overview
8.2 SDL diagrams
Annex A Management error indications
Annex B Protocol implementation conformance statement (PICS) proforma to Recommendation Q.2110
B.1 General
B.2 Abbreviations and special symbols
B.3 Instructions for completing the PICS proforma
B.4 Global statement of conformance
B.5 SSCOP Q.2110
Appendix I Concepts and terminology
Appendix II Examples of SSCOP operation
Appendix III Summary of buffer and state variable management
Appendix IV Default window size for SSCOP