CAN CSA-ISO IEC 10589-2004 Information technology - Telecommunications and information exchange between systems - Intermediate System to Intermediate System intra-domain routeing ii.pdf

1、 Reference numberISO/IEC 10589:2002(E)ISO/IEC 2002Information technology Telecommunications and information exchange between systems Intermediate System to Intermediate System intra-domain routeing information exchange protocol for use in conjunction with the protocol for providing the connectionles

2、s-mode network service (ISO 8473) Technologies de linformation Communication de donnes et change dinformations entre systmes Protocole intra-domaine de routage dun systme intermdiaire un systme intermdiaire utiliser conjointement avec le protocole fournissant le service de rseau en mode sans connexi

3、on (ISO 8473) National Standard of CanadaCAN/CSA-ISO/IEC 10589:04(ISO/IEC 10589:2002)International Standard ISO/IEC 10589:2002 (second edition, 2002-11-15) has been adopted without modification(IDT) as CSA Standard CAN/CSA-ISO/IEC 10589:04, which has been approved as a National Standard of Canadaby

4、the Standards Council of Canada.ISBN 1-55397-332-1 January 2004The Canadian Standards Association (CSA), The Standards Council of Canada is theunder whose auspices this National Standard has been coordinating body of the National Standards system, produced, was chartered in 1919 and accredited by a

5、federation of independent, autonomousthe Standards Council of Canada to the National organizations working towards the furtherStandards system in 1973. It is a not-for-profit, development and improvement of voluntarynonstatutory, voluntary membership association standardization in the national inter

6、est.engaged in standards development and certification The principal objects of the Council are to foster activities. and promote voluntary standardization as a means CSA standards reflect a national consensus of of advancing the national economy, benefiting theproducers and users including manufact

7、urers, health, safety, and welfare of the public, assisting consumers, retailers, unions and professional and protecting the consumer, facilitating domestic organizations, and governmental agencies. The and international trade, and furthering internationalstandards are used widely by industry and co

8、mmerce cooperation in the field of standards.and often adopted by municipal, provincial, and A National Standard of Canada is a standard whichfederal governments in their regulations, particularly in has been approved by the Standards Council ofthe fields of health, safety, building and construction

9、, Canada and one which reflects a reasonableand the environment. agreement among the views of a number of capableIndividuals, companies, and associations across individuals whose collective interests provide to theCanada indicate their support for CSAs standards greatest practicable extent a balance

10、 ofdevelopment by volunteering their time and skills to representation of producers, users, consumers, andCSA Committee work and supporting the Associations others with relevant interests, as may be appropriateobjectives through sustaining memberships. The more to the subject in hand. It normally is

11、 a standardthan 7000 committee volunteers and the 2000 which is capable of making a significant and timelysustaining memberships together form CSAs total contribution to the national interest.membership from which its Directors are chosen. Approval of a standard as a National Standard ofSustaining m

12、emberships represent a major source of Canada indicates that a standard conforms to theincome for CSAs standards development activities. criteria and procedures established by the StandardsThe Association offers certification and testing Council of Canada. Approval does not refer to theservices in s

13、upport of and as an extension to its technical content of the standard; this remains thestandards development activities. To ensure the continuing responsibility of the accreditedintegrity of its certification process, the Association standards-development organization.regularly and continually audi

14、ts and inspects products Those who have a need to apply standards arethat bear the CSA Mark. encouraged to use National Standards of CanadaIn addition to its head office and laboratory complex whenever practicable. These standards are subject in Toronto, CSA has regional branch offices in major to p

15、eriodic review; therefore, users are cautioned centres across Canada and inspection and testing to obtain the latest edition from the organizationagencies in eight countries. Since 1919, the preparing the standard.Association has developed the necessary expertise to The responsibility for approving

16、National Standards meet its corporate mission: CSA is an independent of Canada rests with theservice organization whose mission is to provide an Standards Council of Canadaopen and effective forum for activities facilitating the 270 Albert Street, Suite 200exchange of goods and services through the

17、use of Ottawa, Ontario, K1P 6N7standards, certification and related services to meet Canadanational and international needs.For further information on CSA services, write toCanadian Standards Association5060 Spectrum Way, Suite 100Mississauga, Ontario, L4W 5N6CanadaAlthough the intended primary appl

18、ication of this Standard is stated in its Scope, it is importantto note that it remains the responsibility of the users to judge its suitability for their particular purpose.Registered trade-mark of Canadian Standards AssociationCAN/CSA-ISO/IEC 10589:04 protocol for providing the connectionless-mode

19、 network service (ISO 8473)Information technology Telecommunications and information exchangebetween systems Intermediate System to Intermediate System intra-domainrouteing information exchange protocol for use in conjunction with theJanuary 2004 Canadian Standards Association CSA/1CAN/CSA-ISO/IEC 1

20、0589:04Information technology Telecommunications and informationexchange between systems Intermediate System to IntermediateSystem intra-domain routeinginformation exchange protocol for usein conjunction with the protocol forproviding the connectionless-modenetwork service (ISO 8473)CSA PrefaceStand

21、ards development within the Information Technology sector is harmonized with internationalstandards development. Through the CSA Technical Committee on Information Technology (TCIT),Canadians serve as the Canadian Advisory Committee (CAC) on ISO/IEC Joint Technical Committee 1 onInformation Technolo

22、gy (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO memberbody for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of theInternational Telecommunication Union (ITU), Canada participates in the International Telegraph andTelephone Consultative Comm

23、ittee (ITU-T).This International Standard was reviewed by the CSA TCIT under the jurisdiction of the StrategicSteering Committee on Information Technology and deemed acceptable for use in Canada. (Acommittee membership list is available on request from the CSA Project Manager.) From time to time,ISO

24、/IEC may publish addenda, corrigenda, etc. The CSA TCIT will review these documents for approvaland publication. For a listing, refer to the CSA Information Products catalogue or CSA Info Update orcontact a CSA Sales representative. This Standard has been formally approved, without modification, byt

25、he Technical Committee and has been approved as a National Standard of Canada by the StandardsCouncil of Canada.January 2004 Canadian Standards Association 2004All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission ofthe publisher. ISO/

26、IEC material is reprinted with permission. Where the words “this International Standard” appear in thetext, they should be interpreted as “this National Standard of Canada”. Inquiries regarding this National Standard of Canada should be addressed to Canadian Standards Association 5060 Spectrum Way,

27、Suite 100, Mississauga, Ontario, Canada L4W 5N6 1-800-463-6727 416-747-4044www.csa.caReference numberISO/IEC 10589:2002(E)ISO/IEC 2002INTERNATIONAL STANDARD ISO/IEC10589Second edition2002-11-15Information technology Telecommunications and information exchange between systems Intermediate System to I

28、ntermediate System intra-domain routeing information exchange protocol for use in conjunction with the protocol for providing the connectionless-mode network service (ISO 8473) Technologies de linformation Communication de donnes et change dinformations entre systmes Protocole intra-domaine de routa

29、ge dun systme intermdiaire un systme intermdiaire utiliser conjointement avec le protocole fournissant le service de rseau en mode sans connexion (ISO 8473) ISO/IEC 10589:2002(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be

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32、le is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO/IEC 2002 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any

33、form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749

34、09 47 E-mail copyrightiso.org Web www.iso.org ii ISO/IEC 2002 All rights reservedISO/IEC 10589:2002(E) ISO/IEC 2002 All rights reserved iiiContents 1 Scope _ 1 2 Normative references _ 1 3 Definitions_ 3 3.1 Reference model definitions_ 3 3.2 Network layer architecture definitions_ 3 3.3 Network lay

35、er addressing definitions _ 3 3.4 Local area network definitions _ 3 3.5 Routeing framework definitions _ 3 3.6 Additional definitions _ 3 4 Symbols and abbreviations_ 5 4.1 Data units_ 5 4.2 Protocol data units _ 5 4.3 Addresses_ 5 4.4 Miscellaneous _ 5 5 Typographical conventions _ 6 6 Overview of

36、 the protocol_ 6 6.1 System types _ 6 6.2 Subnetwork types _ 7 6.3 Topologies _ 7 6.4 Addresses_ 8 6.5 Functional organisation _ 8 6.6 Design goals and non-goals _ 9 6.7 Environmental requirements_ 11 6.8 Functional organisation of subnetwork independent components_ 12 7 Subnetwork independent funct

37、ions _ 14 7.1 Addresses_ 15 7.2 Decision process _ 18 7.3 Update process _ 26 7.4 Forwarding process _ 45 7.5 Routeing constants and parameters _ 48 8 Subnetwork dependent functions_ 49 8.1 Multi-destination circuits on ISs at a domain boundary _ 49 8.2 Point-to-point subnetworks _ 50 8.3 ISO 8208 s

38、ubnetworks _ 54 8.4 Broadcast subnetworks _ 59 ISO/IEC 10589:2002(E) iv ISO/IEC 2002 All rights reserved9 Structure and encoding of PDUs_ 65 9.1 General encoding rules_65 9.2 Encoding of network layer addresses _65 9.3 Encoding of SNPA addresses_65 9.4 PDU types _66 9.5 Level 1 LAN IS to IS hello PD

39、U _66 9.6 Level 2 LAN IS to IS hello PDU _69 9.7 Point-to-point IS to IS hello PDU _72 9.8 Level 1 link state PDU _75 9.9 Level 2 link state PDU _79 9.10 Level 1 complete sequence numbers PDU _84 9.11 Level 2 complete sequence numbers PDU _86 9.12 Level 1 partial sequence numbers PDU_88 9.13 Level 2 partial sequence numbers PDU_90 10 System environment _ 91 10.1 Generating jitter on timers _91 10.2 Resolution of timers_92