ISO 8473:1988

IS0
INTERNATIONAL STANDARD
First edition
1988- 12-1 5
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION
ORGANISATION INTERNATIONALE DE NORMALISATION
MEXAYHAPOAHAR OPrAHM3AL&lR Il0 CTAHAAPTM3AUMM
Information processing systems - Data
communications - Protocol for providing the
connectionless-mode network service
Systèmes de traitement de /'information - Communications de données - Protocole
fournissant le service de réseau en mode sans connexion
Reference number
IS0 8473 : 1988 (E)
IS0 8473 : 1988 (E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide federation of
national standards bodies (IS0 member bodies). The work of preparing International
Standards is normally carried out through IS0 technical committees. Each member
body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, govern-
mental and non-governmental, in liaison with ISO, also take part in the work. IS0
collaborates closely with the International Electrotechnical Commission (IEC) on all
matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the IS0 Council. They are approved in accordance with IS0 procedures requiring at
least 75 % approval by the member bodies voting.
International Standard IS0 8473 was prepared by Technical Committee ISO/TC 97,
Information processing systems.
Users should note that all International Standards undergo revision from time to time
and that any reference made herein to any other International Standard implies its
latest edition, unless otherwise stated.
0 International Organization for Standardization, 1988 *
‘Printed in Switzerland
ii
IS0 8473 : 1988 (E)
Contents Page
O Introduction .
1 Scope and field of application .
........................... ................
2 References .
Section one : General .
3 Definitions .
4 Abbreviations .
5 Overview of the protocol .
Section two : Specification of the protocol .
6 Protocol functions . 7
7 Structure and Encoding of PDUs .
8 Provision of the Underlying Service .
9 Conformance .
Annex A
Formal Description .
Annex B
Supporting Technical Material . 46
Annex C
Algorithms for PDU Header Error Detection function . 50
...
INTERNATIONAL STANDARD IS0 8473 : 1988 (E)
Information processing systems - Data
communications - Protocol for providing the
connectionless-mode network service
The underlying connectionless-mode service assumed by
û Introduction
the protocol may be obtained either directly, from a con-
nectionless-mode real subnetwork, or indirectly, through
IS0 8473 is one of a set of International Standards pro-
the operation of an appropriate Snbnetwork Dependent
duced to facilitate the interconnection of open systems.
Convergence function (SNDCF) or protocol (SNDCP)
The set of standards covers the services and protocols
over a connection-mode real subnetwork, as described
reqiiired to achieve such interconnection.
in IS0 8648. This International Standard specifies
This International Standard is po
...