BS ISO/IEC 9548-1:1996

SECTION 1 - GENERAL
1 Scope
2 Normative references
    2.1 Identical Recommendations - International Standards
3 Definitions
    3.1 Reference model definitions
    3.2 Additional definitions
4 Abbreviations
    4.1 Data Units
    4.2 Session protocol data units
    4.3 SPDU fields
    4.4 Parameters
    4.5 Miscellaneous
5 Overview of the connectionless session protocol
    5.1 Service provided by the session layer
    5.2 Service assumed from the transport layer
    5.3 Functions of the session layer
    5.4 Model of the session layer
SECTION 2 - CONNECTIONLESS SESSION PROTOCOL SPECIFICATION
6 Protocol mechanisms
    6.1 Session protocol data unit (SPDU) transfer
    6.2 Connectionless mode transfer
7 Encoding of the unit data (UD) SPDU
    7.1 TSDU structure
    7.2 SPDU structure
    7.3 SPDU identifiers and associated parameter fields
8 Conformance
Annex A - State table

Defines procedures for connectionless transmitting of data and protocol control information from one session entity to a peer session entity, together with encoding and procedures for correct interpretation of seession protocol control information.

This Recommendation | International Standard specifies: procedures for the connectionless transmission of data and protocol control information from one session entity to a peer session entity; the encoding of the session protocol data units used for the transmission of data and control information; procedures for the correct interpretation of session protocol control information; and the functional requirements for implementations claiming conformance to this Recommendation | International Standard. The procedures are defined in terms of: the interactions among peer session entities through the exchange of session protocol data units; the interactions between a session entity and a session service user through the exchange of session service primitives; and the interactions between a session entity and a transport provider through the exchange of transport service primitives. This Recommendation | International Standard specifies a connectionless session protocol. A connection-oriented session protocol is specified in ITU-T Rec. X.225 | ISО/IЕС8327-1.