1、 Reference numberISO/IEC 8348:2002(E)ISO/IEC 2002Information technology Open Systems Interconnection Network service definition Technologies de linformation Interconnexion des systmes ouverts Dfinition du service de rseau National Standard of CanadaCAN/CSA-ISO/IEC 8348:04(ISO/IEC 8348:2002)Internati
2、onal Standard ISO/IEC 8348:2002 (third edition, 2002-11-01), has been adopted withoutmodification (IDT) as CSA Standard CAN/CSA-ISO/IEC 8348:04, which has been approved as a NationalStandard of Canada by the Standards Council of Canada.ISBN 1-55397-254-6 January 2004The Canadian Standards Associatio
3、n (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 federation of independent, autonomousthe Standards Council of Canada to the National organizatio
4、ns 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 interest.engaged in standards development and certification The principal objects of the Council are
5、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 manufacturers, health, safety, and welfare of the public, assisting consumers, retailers, unions and pro
6、fessional and protecting the consumer, facilitating domestic organizations, and governmental agencies. The and international trade, and furthering internationalstandards are used widely by industry and commerce cooperation in the field of standards.and often adopted by municipal, provincial, and A N
7、ational 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, Canada and one which reflects a reasonableand the environment. agreement among the views of a
8、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 ofdevelopment by volunteering their time and skills to representation of producers, users, cons
9、umers, 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 a standardthan 7000 committee volunteers and the 2000 which is capable of making a significant
10、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 memberships represent a major source of Canada indicates that a standard conforms to theincome fo
11、r 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 support of and as an extension to its technical content of the standard; this remains thestandard
12、s development activities. To ensure the continuing responsibility of the accreditedintegrity of its certification process, the Association standards-development organization.regularly and continually audits and inspects products Those who have a need to apply standards arethat bear the CSA Mark. enc
13、ouraged 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 periodic review; therefore, users are cautioned centres across Canada and inspection and testing
14、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 National Standards meet its corporate mission: CSA is an independent of Canada rests with theser
15、vice 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 use of Ottawa, Ontario, K1P 6N7standards, certification and related services to meet Canadanatio
16、nal and international needs.For further information on CSA services, write toCanadian Standards Association5060 Spectrum Way, Suite 100Mississauga, Ontario, L4W 5N6CanadaCette Norme nationale du Canada est offerte en anglais et en franais.Although the intended primary application of this Standard is
17、 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 AssociationInformation technology Open SystemsCAN/CSA-ISO/IEC 8348:04 Interconnection Network service definit
18、ionJanuary 2004 CSA/1CAN/CSA-ISO/IEC 8348:04Information technology Open Systems Interconnection Network service definitionCSA PrefaceStandards development within the Information Technology sector is harmonized with internationalstandards development. Through the CSA Technical Committee on Informatio
19、n Technology (TCIT),Canadians serve as the Canadian Advisory Committee (CAC) on ISO/IEC Joint Technical Committee 1 on Information Technology (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
20、member of theInternational Telecommunication Union (ITU), Canada participates in the International Telegraph andTelephone Consultative Committee (ITU-T).This Standard supersedes CAN/CSA-ISO/IEC 8348-01 (adoption of ISO/IEC 8348:1996).This International Standard was reviewed by the CSA TCIT under the
21、 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/IEC may publish addenda, corrigenda, etc. The CSA TCIT will review these docume
22、nts 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, by the Technical Committee and has been approved as a National Standard of Canada b
23、y the StandardsCouncil of CanadaJanuary 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/IEC material is reprinted with permission. Where the words “this International S
24、tandard” 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, Suite 100, Mississauga, Ontario, Canada L4W 5N6 1-800-463-6727 416-747-4044www.c
25、sa.caReference numberISO/IEC 8348:2002(E)ISO/IEC 2002INTERNATIONAL STANDARD ISO/IEC8348Third edition2002-11-01Information technology Open Systems Interconnection Network service definition Technologies de linformation Interconnexion des systmes ouverts Dfinition du service de rseau ISO/IEC 8348:2002
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29、O/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
30、 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 ii ISO/IEC 2002 All rights reservedISO/IEC 8348:2002(E) ISO/IEC 2002 All rights reserved iiiCONTENTS Page SECTION 1 GENERAL . 1 1
31、 Scope 1 2 Normative references 1 2.1 Identical Recommendations | International Standards. 1 2.2 Additional references. 2 3 Definitions 2 3.1 Basic reference model definitions . 2 3.2 Service conventions definitions. 3 3.3 Network Service definitions 3 3.4 Network addressing definitions. 3 3.5 Netwo
32、rk layer architecture definitions 4 4 Abbreviations 4 5 Conventions 5 5.1 General conventions 5 5.2 Parameters . 5 5.3 NC end-point identification convention 5 6 Overview and general characteristics . 5 7 Types and classes of Network Service 6 SECTION 2 DEFINITION OF THE CONNECTION-MODE SERVICE . 6
33、8 Features of the connection-mode Network Service 6 9 Model of the connection-mode Network Service . 7 9.1 Model of the connection-mode Network Layer Service 7 9.2 Model of a Network Connection . 7 10 Quality of the connection-mode Network Service 11 10.1 Determination of QOS. 11 10.2 Definition of
34、QOS-parameters. 12 11 Sequence of primitives . 15 11.1 Relation of primitives at the two NC end-points . 15 11.2 Sequence of primitives at one NC end-point. 15 12 Connection establishment phase. 18 12.1 Function . 18 12.2 Types of primitives and parameters. 18 12.3 Sequence of primitives 26 13 Conne
35、ction release phase 26 13.1 Function . 26 13.2 Types of primitive and parameters 27 13.3 Sequence of primitives when releasing an established NC . 28 13.4 Sequence of primitives in an NS user rejection of an NC establishment attempt 29 13.5 Sequence of primitives in an NS provider rejection of an NC
36、 establishment attempt. 29 14 Data transfer phase . 30 14.1 Data transfer 30 14.2 Receipt confirmation service. 31 14.3 Expedited data transfer service 32 14.4 Reset service 33 SECTION 3 DEFINITION OF THE CONNECTIONLESS-MODE SERVICE 36 15 Features of the connectionless-mode Network Service 36 16 Mod
37、el of the connectionless-mode Network Service . 36 16.1 Model of the connectionless-mode Network Layer Service 36 16.2 Model of a network connectionless-mode transmission 36 ISO/IEC 8348:2002(E) iv ISO/IEC 2002 All rights reservedPage 17 Quality of the connectionless-mode Network Service 38 17.1 Det
38、ermination of QOS. 38 17.2 Definition of network connectionless-mode QOS-parameters 38 17.3 Route selection considerations 39 18 Sequence of primitives . 40 19 Data transfer . 40 19.1 Function . 40 19.2 Types of primitives and parameters. 41 19.3 Sequence of primitives 41 Annex A Network Layer Addre
39、ssing 43 A.1 General 43 A.2 Scope . 43 A.3 Concepts and terminology. 43 A.4 Principles for creating the OSI Network addressing scheme. 46 A.5 Network address definition 47 A.6 Character based DSP allocation 54 A.7 Reference publication formats. 55 A.8 Network entity titles 55 Annex B Rationales for
40、the material in Annex A . 56 B.1 IDI formats (see A.5.2.1.2) 56 B.2 Reservation of AFI values 00-F and FF (see Table A.1). 57 B.3 Derivation of the preferred encodings (see A.5.3). 57 Annex C Facilities for conveying service characteristics in the connectionless-mode Network Service . 58 C.1 Introdu
41、ction . 58 C.2 Function. 58 C.3 Types of primitives and parameters. 58 C.4 Service characteristics . 59 C.5 Types of primitives and parameters. 59 ISO/IEC 8348:2002(E) ISO/IEC 2002 All rights reserved vForeword ISO (the International Organization for Standardization) and IEC (the International Elect
42、rotechnical 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 techni
43、cal 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, also take part in the work. In the field of information technology, ISO and IEC have established a joint technic
44、al committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circ
45、ulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO and IEC sha
46、ll not be held responsible for identifying any or all such patent rights. ISO/IEC 8348 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 6, Telecommunications and information exchange between systems, in collaboration with ITU-T. The identical text is p
47、ublished as ITU-T Rec. X.213. This third edition cancels and replaces the second edition (ISO/IEC 8348:1996), which has been technically revised. It also incorporates Amendment 1:1998 and Amendment 2:2002. Annex A forms a normative part of this International Standard. Annexes B and C are for informa
48、tion only. ISO/IEC 8348:2002(E) vi ISO/IEC 2002 All rights reservedIntroduction This Recommendation | International Standard is one of a set of Recommendations and International Standards produced to facilitate the interconnection of computer systems. It is related to other Recommendations and Inter
49、national Standards in the set as defined by the Reference Model of Open Systems Interconnection (OSI). The OSI Reference Model (ITU-T Rec. X.200 | ISO/IEC 7498-1) subdivides the area of standardization for interconnection into a series of layers of specification, each of a manageable size. This Recommendation | International Standard defines the Service provided by the Network Layer to the Transport Layer at the boundary between the Network and Transport Layers of the Reference Model. It provides for the
