|
I NTERNATI ON AL
8326
STANDARD
First edition
1987-08-15
AMENDMENT 4
1992-12-1 5
Information processing systems - Open
Systems Interconnection - Basic connection
oriented session service definition
AM E N D M E NT 4: Addition a I sync h ro n izat i o n
f u ncti ona I i ty
Systèmes de traitement de l'information - Interconnexion de systèmes
ouverts - Service de session en mode connexion
AMENDEMENT 4: Fonction de synchronisation supplémentaire
Reference number
IS0 8326:1987/Amd. 4:1992 (E)
---------------------- Page: 1 ----------------------
IS0 8326:1987/Amd. 4:1992 (E)
Foreword
IS0 (the International Organization for Standardization) and IEC (the International
Electrotechnical Commission) form the specialized system for worldwide
standardization. National bodies that are members of IS0 or IEC participate in the
development of International Standards through technical committees established by
the respective organization to deal with particular fields of technical activity. IS0 and
IEC technical committees collaborate in fields of mutual interest. Other international
organizations, governmental and non-governmental, in liaison with IS0 and IEC, also
take part in the work.
In the field of information technology, IS0 and IEC have established a joint technical
committee, ISO/IEC JTC 1. Draft International Standards adopted by the joint
technical committee are circulated to national bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the national bodies casting
a vote.
Amendment 4 to International Standard IS0 8326: 1987 was prepared by Joint
Technical Committee ISO/IEC JTC 1, Informtion technology.
O ISO/IEC 1992
All rights reserved. No part of this publication may be reproduced or utilized in any form or by any
means, electronic or mechanical, including photocopying and microfilm, without permission in writing
from the publisher.
International Organization for Standardization
Case postale 56 . CH-121 1 Genève 20 . Switzerland
Printed in Switzerland
11
---------------------- Page: 2 ----------------------
IS0 8326:1987/Amd. 4:1992 (E)
Information processing systems - Open Systems
- Basic connection oriented session
Interconnection
service definition
AMENDMENT 4: Additional synchronization functionality
Introduction
This Amendment introduces the data separation functional unit into the Session Service definition. The data
separation functional unit supports the additional functionality of separation of data before and after a minor
synchronization point. It should be noted that the page and clause numbering in this Amendment relate to
SC 21 N4657 “Revised version of IS0 8326”, which is planned to be submitted for publication later this
year. This is because this Amendment affects changes introduced by earlier Amendments and Addenda.
This Amendment makes no change to any other part of the Session Service.
Subclause 7.3 Synchronization and dialogue concepts
At the end of the last paragraph add the following
“A minor synchronization point inserted in association with the data separation service
protects all data sent before the minor synchronization point from being discarded by a
subsequent resynchronize request.”
Page 7
Subclause 8.2 Data transfer phase
Replace the start of the fourth paragraph with the following
“There are five services associated with synchronization and resynchronization:”
Page 7
0 Subclause 8.2 Data transfer phase
Insert a new item after 8.2 i) and re-letter the subsequent items j) to r) as k) to s)
“j) the data separation service (see 13.8) adds functionality to the minor synchronization point
service and the symmetric synchronize service to protect all data sent before the minor
synchronization point from being discarded by a subsequent resynchronize request. There are
no additional services associated with the data separation functional unit.”
Page 8
Table 2 - Services associated with each functional unit
Insert a new entry after Symmetric Synchronize as follows
Service Reference
Functional unit
13.8
Data separation Data separation
(associated with the minor synchronization point
service or the symmetric synchronize service)
1
---------------------- Page: 3 ----------------------
IS0 8326:1987/Amd. 4:1992 (E)
Page 9
Subclause 9.1 Functional units
Insert a new subclause after subclause 9.1.8 and re-number subsequent subclauses 9.1.9 to 9.1.1 3 as 9.1.1 O
to 9.1.14
“9.1.9 Data separation functional unit
The data separation functional unit supports the data separation service and adds
functionality to the minor synchronization point service and the symmetric synchronize
service. The data separation functional unit can only be selected when either the minor
synchronize functional unit has been selected or the symmetric synchronize functional unit
has been selected. It is not valid to select both this functional unit and the activity
management functional unit for use on the same session connection.”
Page 9
Subclause 9.2 Subsets
Insert a new item c) as follows
“c) if the data separation functional unit is included in a subset, one of the minor synchronize
functional unit and the symmetric synchronize functional unit is also included in the subset.”
Page 16
Table 6 - Data transfer phase primitives
Add a new parameter to the minor synchronization point service parameter list after the Type parameter as
follows
“Data separation”
Page 22
Clause 11 Introduction to the session serv.se primitives
Insert a new subclause 11.5 as follows
‘‘il.5 Data separation
The data separation service adds functionality to the minor synchronization poh service and
the symmetric synchronize service to protect data sent before the minor synchronization
points from being discarded in the event of a resynchronkation. When the data separation
functional unit has been selected, the associated service is invoked by the SS-user by setting
the data separation parameter to true in the S-SYNC-MINOR request.
This service has no specific effect on the variables described in 11.4.2.1 .”
2
---------------------- Page: 4 ----------------------
Subclause 12.1.2.7
Insert a new item after 12.1.2.7 g) and re-letter the subsequent items h) to 1) as i) to m):
“h) data separation functional unit;”
Page 23
...