CAN CSA-ISO IEC TR 21890-2004 Information technology - Telecommunications and information exchange between systems - Interoperation of PISNs with IP networks.pdf
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1、 Reference numberISO/IEC TR 21890:2001(E)ISO/IEC 2001Information technology Telecommunications and information exchange between systems Interoperation of PISNs with IP networks Technologies de linformation Tlcommunications et change dinformation entre systmes Interopration de PISN avec des rseaux IP
2、 National Standard of CanadaCAN/CSA-ISO/IEC TR 21890:04(ISO/IEC TR 21890:2001)Technical Report ISO/IEC TR 21890:2001 (first edition, 2001-10-01) has been adopted withoutmodification (IDT) as CSA Standard CAN/CSA-ISO/IEC TR 21890:04, which has been approved as aNational Standard of Canada by the Stan
3、dards Council of Canada.ISBN 1-55397-272-4 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 federati
4、on 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 interest.enga
5、ged 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 manufacturers, h
6、ealth, 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 commerce c
7、ooperation 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, Canada
8、 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 ofdevel
9、opment 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 a stand
10、ardthan 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 membershi
11、ps 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 support o
12、f 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 audits and i
13、nspects 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 periodic
14、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 National
15、 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 use of O
16、ttawa, 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 application
17、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 TR 21890:04Information technology Telecommunications and inform
18、ation exchangebetween systems Interoperation of PISNs with IP networksJanuary 2004 Canadian Standards Association CSA/1CAN/CSA-ISO/IEC TR 21890:04Information technology Telecommunications andinformation exchange betweensystems Interoperation of PISNswith IP networksCSA PrefaceStandards development w
19、ithin 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 on Information Technology (ISO/IEC JTC1)
20、 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 Committee (ITU-T).Thi
21、s Technical Report was reviewed by the CSA TCIT under the jurisdiction of the Strategic SteeringCommittee on Information Technology and deemed acceptable for use in Canada. (A committeemembership list is available on request from the CSA Project Manager.) From time to time, ISO/IEC maypublish addend
22、a, corrigenda, etc. The CSA TCIT will review these documents for approval andpublication. For a listing, refer to the CSA Information Products catalogue or CSA Info Update or contacta CSA Sales representative. This Technical Report has been formally approved, without modification, bythe Technical Co
23、mmittee 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/IEC material is
24、 reprinted with permission. Where the words “this Technical Report” appear in the text,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, Mississaug
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