Information technology - Telecommunications and information exchange between systems - Open systems interconnection - Protocol for providing the connection-mode transport service
DATA PROCESSING, TELECOMMUNICATIONS, INFORMATION INTERCHANGE, NETWORKINTERCONNECTION, OPEN SYSTEMS INTERCONNECITON, DATA TRANSFER, COMMUNICATIONPROCEDURE, CONTROL PROCEDURES, TRANSPORT LAYER, PROTOCOLS
被代替标准
CAN/CSA-ISO/IEC 8073-02
适用范围
The international community has decided to make this standard available only in
the English language version. It has been adopted as a National Standard of
Canada on this basis. This National Standard of Canada is equivalent to International Standard
ISO/IEC 8073:1992. 1 Scope This 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 a) the interactions between peer transport entities through the
exchange of transport protocol data units; b) the interactions between a transport entity and the transport
service user in the same system through the exchange of transport
service primitives; c) the interactions between a transport entity and the network service
provider through the exchange of network service primitives. These procedures are defined in the main text of this International Standard
supplemented by state tables in annex A. These procedures are applicable to instances of communication between systems
which support the Transport Layer of the OSI Reference Model and which wish to
interconnect in an open systems environment. This International Standard specifies, in clause 14, conformance requirements
for systems implementing these procedures and provides the PICS proforma in
compliance with the relevant requirements, and in accordance with the relevant
guidance, given in ISO/IEC 9646-2. It does not contain tests which can be used
to demonstrate this conformance.