BS ISO/IEC TR 9571:1989

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Symbols and abbreviations
5 Conventions
6 Introduction to the formal description
7 Global constraints of the session service
8 Provision of a single session connection
9 Local constraints at a session connection endpoint
9.1 Interface data types
9.2 Processes for local constraints
10 End-to-end constraints for a session connection
10.1 Association data types
10.2 Processes for end-to-end constraints
11 Identification of session connections
12 Acceptance of session connections
13 Backpressure flowcontrol

LOTOS description of the OSI Basic Connection Oriented Session Protocol defined in ISO 8326.