1、CSA INTERNATIONAL / -.- National Standard of Canada CAN/CSA-ISOBEC 7498-3-00 (ISO/IEC 7498-3:1997) International Standard ISO/IEC 7498-3:1997 (second edition 1997-04-15) has been adopted without modification as CSA Standard CAN/CSA-ISO/IEC 7498-3-00, which has been approved as a National Standard of
2、 Canada by the Standards Council of Canada. ISBN 1-55324-122-3 March 2000 information technology - Open Systems interconnection - Basic Reference Model: Naming and addressing Technologies de /information - lnterconnexion de systemes ouverts COS/) - Modele de rgfgrence de base: Denomination et adress
3、age (Reaffirmed 2004) Reference number tSO/IEC 7498-311 997(E) The Canadian Standards Association, which operates under the name CSA International (CSA), under whose auspices this National Standard has been produced, was chartered in 191 9 and accredited by the Standards Council of Canada to the Nat
4、ional Standards system in 1973. It is a not-for-profit, nonstatutory, voluntary membership association engaged in standards development and certification activities. and users - including manufacturers, consumers, retailers, unions and professional organizations, and governmental agencies. The stand
5、ards are used widely by industry and commerce and often adopted by municipal, provincial, and federal governments in their regulations, particularly in the fields of health, safety, building and construction, and the environment. indicate their support for CSAs standards development by volunteering
6、their time and skills to CSA Committee work and supporting the Associations objectives through sustaining memberships. The more than 7000 committee volunteers and the 2000 sustaining memberships together form CSAs total membership from which its Directors are chosen. Sustaining memberships represent
7、 a major source of income for CSAs standards development activities. in support of and as an extension to its standards development activities. To ensure the integrity of its certification process, the Association regularly and continually audits and inspects products that bear the CSA Mark. Toronto
8、, CSA has regional branch offices in major centres across Canada and inspection and testing agencies in eight countries. Since 191 9, the Association has developed the necessary expertise to meet its corporate mission: CSA is an independent service organization whose mission is to provide an open an
9、d effective forum for activities facilitating the exchange of goods and services through the use of standards, certification and related services to meet national and international needs. For futher information on CSA services, write to CSA International 178 Rexdale Boulevard Toronto, Ontario, M9W 1
10、 R3 Canada CSA standards reflect a national consensus of producers Individuals, companies, and associations across Canada The Association offers Certification and testing services In addition to its head office and laboratory complex in The Standards Council of Canada is the coordinating body of the
11、 National Standards system, a federation of independent, autonomous organizations working towards the further development and improvement of voluntary standardization in the national interest. The principal objects of the Council are to foster and promote voluntary standardization as a means of adva
12、ncing the national economy, benefiting the health, safety, and welfare of the public, assisting and protecting the consumer, facilitating domestic and international trade, and furthering international cooperation in the field of standards. has been approved by the Standards Council of Canada and one
13、 which reflects a reasonable agreement among the views of a number of capable individuals whose collective interests provide to the greatest practicable extent a balance of representation of producers, users, consumers, and others with relevant interests, as may be appropriate to the subject in hand
14、. It normally is a standard which is capable of making a significant and timely contribution to the national interest. Approval of a standard as a National Standard of Canada indicates that a standard conforms to the criteria and procedures established by the Standards Council of Canada. Approval do
15、es not refer to the technical content of the standard; this remains the continuing responsibility of the accredited standards-development organization. Those who have a need to apply standards are encouraged to use National Standards of Canada whenever practicable. These standards are subject to per
16、iodic review; therefore, users are cautioned to obtain the latest edition from the organization preparing the standard. The responsibility for approving National Standards of Canada rests with the Standards Council of Canada 45 OConnor Street, Suite 1200 Ottawa, Ontario, K1 P 6N7 Canada A National S
17、tandard of Canada is a standard which CSA IN TE RNATlO N A1 / - Les normes nationales du Canada sont publiees en versions franqake et anglaise. Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users t
18、o judge its suitability for their particular purpose. Information technology - Open Systems Interconnection - Basic Reference Model: Naminq and addressing CA N/CSA-ISO/I EC 74 98-3 -0 0 CAN/CSA-ISO/IEC 7498-3-00 Information technology - Open Systems Interconnection - Basic Reference Model: Naming an
19、d addressing CSA Preface Standards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the Canadian Advisory Committee (CAC) on ISO/IEC Joint Technical Co
20、mmittee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the IS0 member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the 1 n te rnatio na I Teleco m m u n ica tion U n ion (ITU ), Canada pa rtici pates i n the In
21、tern at ion a I Te leg rap h and Telephone Con su I tat ive Corn mi ttee (ITU -T). This International Standard was reviewed by the CSA TCtT under the jurisdiction of the Strategic Steering Committee on Information Technology and deemed acceptable for use in Canada. (A committee membership list is av
22、ailable on request from the CSA Project Manager.) From time to time, ISO/IEC may publish addenda, corrigenda, etc. The CSA TClT will review these documents for approval and publication. For a listing, refer to the CSA Information Products catalogue or CSA Info Update or contact a CSA Sales represent
23、ative. This Standard has been formally approved, without modification, by these Committees and has been approved as a National Standard of Canada by the Standards Council of Canada. March 2000 0 CSA International - 2000 All rights reserved. No part of this publication may be reproduced in any form w
24、hatsoever without the prior permission of the publisher. ISO/IEC material is reprinted with permission. Inquiries regarding this National Standard of Canada should be addressed to CSA International, 7 78 Rexdale Boulevard, Toronto, Ontario, M9W 7 R3. March 2000 CSA/I I NTE RNATI ONAL STANDARD ISO/IE
25、C Second edition 1997-04-1 5 Information technology - Open Systems Interconnection - Basic Reference Model: Naming and addressing Technologies de 1 information - lnterconnexion de s ystemes ouverts (OSII - Modele de reWence de base: Dgnomination et adressage Reference number ISO/IEC 7498-3:1997(E) I
26、SO/IEC 7498-3: 1997(E) 1 2 3 4 5 6 7 8 9 10 Scope .-*.*. Normative references . 2.1 2.2 2.3 Additional references Definitions A bb revi ati om . Identical Recommendations I International Standards Paired Recommendations International Standards equivalent in technical content Basic Concepts of Naming
27、 . OS1 naming and addressing concepts and the correct use of addresses . The naming and addressing of elements of an (N)-layer The correct use of +addresses OS1 addressing model Associations between peer (N)-entities . Attachment of (N)-entities to (N)-SAPS . (N)-Directory-Functions and Directory Fa
28、cilities . Addressing information and (N)-services 8.2 Address parameters . 8.4 CaIling-(N)-address . Addressing information and (N)-protocols Addressing information in (N)-PA1 Assignment of values to elements of (N)-PA1 6.1 6.2 6.3 The naming of real open systems 7.1 7.2 7.3 (N)-addresses and (N)-S
29、APs . 7.4 8.1 Introduction . 8.3 Called-(N)-address 8.5 Responding-(N)-address . 9.1 Introduction . 9.2 9.3 9.4 Network-Addresses and Network-PA1 . 9.5 )-Addresses and (N)-PA1 above the Network Layer 9.6 Obtaining (N)-PA1 (N)-directory-hctions 10.1 Introduction . 10.2 The initiator (N)-directory-fun
30、ctions Contents 10.3 The recipient (N)-directory-fimctions . Page 1 1 1 1 1 2 4 5 5 5 6 6 7 7 7 8 9 9 9 9 IO 10 11 11 11 11 12 12 12 13 13 13 14 15 0 ISODEC 1997 All rights reserved . Unless othenvise specified. no part of this publication may be reproduced or utilized in any form or by any means .
31、electronic or mechanical. including photocopying and micro- film. without permission in writing from the publisher . ISO/IEC Copyright Office Case postale 56 . CH- 12 1 1 Genkve 20 Switzerland 11 ISO/IEC ISO/IEC 7498-3:1997(E) 1 1 Addressing in specific OS1 layers Application-processes and the Appli
32、cation Layer Presentation Layer I 1.3 Session Layer 1 1.5 Network Layer Data Llnk Layer 11.7 Physical Layer . Registration procedures for naming within OS1 . 14 Directory Facility requirements 14.1 Introduction . 14.2 The Application Title Directory Facility . 14.3 The Network Address Directory Faci
33、lity 1 I . 1 1 I . 2 11.4 Transport Layer . 1 1.6 I2 13 Naming domains and authorities 15 15 17 18 18 19 21 A- 77 22 23 23 23 23 24 . 111 ISO/IEC 7498-3:1997(E) ISO/IEC Foreword IS0 (the International Organization for Standardization) and IEC (the Inter- national Electrotechnical Commission) form th
34、e specialized system for worldwide standardization. National bodies that are members of IS0 or IEC participate in the development of International Standards through technicaI committees established by the respective organization to deal with particular fields of technical activity. IS0 and IEC techn
35、ical 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, ISOAEC JTC 1. Dra
36、ft 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 9% of the national bodies casting a vote. International Standard ISO/IEC 7498-3 was prepared by Joint Technical
37、Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 18, Document processing and related communication, in collaboration with ITU-T. The identical text is published as ITU-T Recommendation X.650. This second edition cancels and replaces the first edition (IS0 7498-3: 1989), which has bee
38、n technically revised. ISO/IEC 7498 consists of the following parts, under the general title Znformariun technology - Open Systems Interconnection - Basic Reference Model: - Part I: The Basic Model - Part 2: Security Architecture - Parr 3: Naming and addressing - Part 4: Management framework - Part
39、5: Multipeer communication architecture iv 0 ISO/IEC ISO/IEC 7498-3:1997(E) Introduction This Recommendation I International Standard extends the basic architectural concepts of identifiers described in ITU-T Rec. X.200 I ISO/IEC 7498-1. This Recommendation 1 International Standard states the archit
40、ectural principles whch are followed in the production of any Recommendation I International Standard which involves the identification (naming) and location (addressing) of objects for the purpose of interconnection wih the Open System Interconnection Environment (OSIE). This Recommendation I Inter
41、national Standard has sufficient flexibility to accommodate advances in technology and expansion in user demands. This flexibility is also intended to allow the phased transition from existing implementations to OS1 Standards. NOTE 1 - This Recommendation I International Standard is expected to be s
42、ubject to future expansion, in particular with regard to Multi-Peer Data Transmission (MPDT). The architectural principles stated within this Recommendation j International Standard will ensure that any ITU-TRecommendation that involves the identification and location of objects within the OSIE for
43、the purpose of interconnection wi 11 : Avoid any restrictions on: 1) the functionality that may be made available through current or future Recommendations I International Standards; the functiondity of any real open system; the internal design of any real open system. 2) 3) Preserve the principle o
44、f layer independence in the OSIE, i.e. the internal hctioning of one layer is not constrained by any other layer. Preserve the principle of implementation independence in the OSIE, as expressed in 4.2 of ITU-T Rec. X.200 1 ISOAEC 7498-1. That is, no real open system (or administrator thereof) is req
45、uired to how anything about the implementation design of any other real open system (or administration thereof), nor does any real open system impose such knowledge as a condition for communication using OS1 Standards. Allow economical support for interconnection within the OSIE; in particular indiv
46、idual standards produced within the framework specified by this Recommendation j International Standard should make it possible to provide facilities which give adequate levels of performance, reliability, and integrity and which ease the administration by humans with respect to identifying and loca
47、ting objects within the OSIE for the purpose of interconnection. The description of naming and addressing for the OSIE given in this Recommendation I International Standard is developed in stages. NOTE 2 - This Recommendation I International Standard provides clarifications of the basic architecture
48、 defined in ITU-T Rec. X.200 I ISOAEC 7498-1 where this is necessary for a fUI1 understanding of the naming and addressing requirements within the OSIE. V ISO/IEC 7498-3 1997 (E) INTERNATIONAL STANDARD ITU-T RECOMMENDATION INFORMATION TECHNOLOGY - OPEN SYSTEMS INTERCONNECTION - BASIC REFERENCE MODEL
49、: NAMING AND ADDRESSING 1 Scope This Recommendatjon I International Standard: a) b) defines general mechanisms for the use of names and addresses to identify and locate objects in the OSIE; and dekes the use of these mechanisms wihn the layered structure of the Basic Reference Model. This Recommendation 1 International Standard extends the concepts and principles defined in ITU-T Rec. X.200 1 ISOAEC 7498-1. Thls Recommendation I International Standard is not intended to be either rn implementation specification or a basis for appraising the conformance of actual implementatio
