48519030842357766 INTERNATIONAL ISO STANDARD 9542 Firstedition 1988-08-15 AMENDMENT1 1999-09-15 Informationprocessing systems Telecommunications and information exchange between systems - End system to Intermediate system routeing exchange protocol for use in conjunction with the Protocol for providing the connectionless- mode network service (ISO 8473) AMENDMENT 1: Addition of group composition information Systemes de traitement de I'information - Teleinformatique - Protocole de routage d'un systeme d'extremite a un systeme intermediaire a utiliser conjointement avec le protocole fournissant le service de reseau en mode sansconnexion(isO8473) AMENDEMENT1:Addition d'information de composition degroupe This material is reproduced from ISO documents under International Organization for Standardization (ISO) Copyright LiccenseNumber HIS/CC/1996.Not for resale.No part of these ISO documents may be reproduced in any form, electronic retrieval system or otherwise, cxcept as allowed in the copyright law of the country of use, or with the prior written consent of ISO (Case postale 56,1211 Geneva 20, Switzerland, Fax +41 22 734 10 79), IHS or the ISO Licensor's members. IEC Reference number ISO 9542:1988/Amd.1:1999(E) Noreproduction or networking permited withoutlicense from IHS Not for Resale 219 95E2h90 EO6TSah ISO 9542:1988/Amd.1:1999(E) @ ISO/IEC1999 Alt rights reserved. Unless otherwise specified, 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. ISO/IEC Copyright Office -Case postale 56 - CH-1211 Geneve 20 Switzerland Printed in Switzerland ii Copyright In n for Standardizatior No reproduction or networking permited without license from IHS Not for Resale 48519030842359539 @ISO/EC ISO 9542:1988/Amd.1:1999(E) Foreword iSO (the International Organization for Standardization) and IEC (the Inter- national Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO 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. iSO and IEc technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with IsO and IEC, atso take part in the work. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. In the field of information technology, iSO 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 1 to ISO 9542:1988 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 6, Telecommunications and information exchange between systems. ili Copyright Ir vith ISC Noreproduction or networking permited without licensefrom IHS Not for Resale