ISO_IEC_10589_2002E.pdf

Reference numberISO/IEC 10589:2002(E)ISO/IEC 2002 INTERNATIONAL STANDARD ISO/IEC10589Second edition2002-11-15Information 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 connectionless-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 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 printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing.In downloading this file,parties accept therein the responsibility of not infringing Adobes licensing policy.The ISO Central Secretariat accepts no liability in this area.Adobe is a trademark of Adobe Systems Incorporated.Details of the software products used to create this PDF file can be found in the General Info relative to the file;the PDF-creation parameters were optimized for printing.Every care has been taken to ensure that the file 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 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 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO/IEC 2002 All rights reserved ISO/IEC 10589:2002(E)ISO/IEC 2002 All rights reserved iii Contents 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 layer 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 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 functions _ 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 subnetworks _54 8.4 Broadcast subnetworks _59 ISO/IEC 10589:2002(E)iv ISO/IEC 2002 All rights reserved 9 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 PDU _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 10.3 Requirements on the operation of ISO 9542_93 10.4 Requirements on the operation of ISO 8473_93 11 System management_ 93 11.1 General _93-11.2 GDMO definition _ 94-11.2.1 Common GDMO definitions_94-11.3 ASN1 modules _127 12 Conformance _ 129 12.1 Conformance for protocol implementation_129 12.1.2 Dynamic conformance _131 12.2 Conformance for management information implementation _133 Annex A_ 135 A.1 Introduction_135 A.2 Abbreviations and special symbols _135 A.3 Instructions for completing the pics pro formas _135 A.4 Identification_138 A.5 Protocol summary:ISO 10589 general_139 A.6 Protocol summary:ISO 10589 level 1 specific functions_143 A.7 Protocol summary:ISO 10589 level 2 specific functions_144 ISO/IEC 10589:2002(E)ISO/IEC 2002 All rights reserved v Annex B_ 146 B.1 Addressing and routeing _146 B.2 Use of the area address field in intra-domain routeing_148 Annex C_ 150 C.1 Routeing databases_150 C.3 Forwarding process _156 Annex D_ 158 D.1 Congestion control _158 D.2 Congestion avoidance_159 Annex E_ 160-E.1 Generic managed object class definitions _160-E.2 ASN.