CSA Standards

Information technology - Open Systems Interconnection - Protocol for providing the connection-mode transport service
 N CAN/CSA-ISO/IEC 8073-02

Annotation

This Recommendation 1 International Standard specifies

a) five classes of procedures when operating over the connection-mode network service:

1) class 0: simple class;

2) class 1: basic error recovery class;

3) class 2: multiplexing class;

4) class 3: error recovery and multiplexing class;

5) class 4: error detection and recovery class; for the connection-mode transfer of data and control information from one transport entity to a peer transport entity;

b) one class (class 4) of procedure when operating over the connectionless-mode network service;

c) the means of negotiating the class of procedures to be used by the transport entities;

d) the structure and encoding of the transport protocol data units used for the transfer of data and control information.

The procedures are defined in terms of:

i) the interactions between peer transport entities through the exchange of transport protocol data units;

ii) the interactions between a transport entity and the transport service user in the same system through the exchange of transport service primitives;

iii) the interactions between a transport entity and the network service provider through the exchange of network service primitives.