1、 Reference numberISO/IEC 18017:2001(E)ISO/IEC 2001Information technology Telecommunications and information exchange between systems Private Integrated Services Network Mapping functions for the employment of Virtual Private Network scenarios Technologies de linformation Tlcommunications et change d
2、information entre systmes Rseau priv intgration de services Fonctions de mappage pour lemploi de scnarios de rseau priv virtuel National Standard of CanadaCAN/CSA-ISO/IEC 18017:04(ISO/IEC 18017:2001)International Standard ISO/IEC 18017:2001 (first edition, 2001-11-01) has been adopted without modifi
3、cation(IDT) as CSA Standard CAN/CSA-ISO/IEC 18017:04, which has been approved as a National Standard of Canadaby the Standards Council of Canada.ISBN 1-55397-300-3 January 2004The Canadian Standards Association (CSA), The Standards Council of Canada is theunder whose auspices this National Standard
4、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 organizations working towards the furtherStandards system in 1973. It is a not-for-profit, development
5、 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 to foster activities. and promote voluntary standardization as a means CSA standards reflec
6、t 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 professional and protecting the consumer, facilitating domestic organizations, and governmenta
7、l 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 National Standard of Canada is a standard whichfederal governments in their regulations, par
8、ticularly 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 number of capableIndividuals, companies, and associations across individuals whose collecti
9、ve 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, consumers, andCSA Committee work and supporting the Associations others with relevant interests
10、, 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 and timelysustaining memberships together form CSAs total contribution to the national inte
11、rest.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 for CSAs standards development activities. criteria and procedures established by the Standar
12、dsThe 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 thestandards development activities. To ensure the continuing responsibility of the accreditedintegrit
13、y 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. encouraged to use National Standards of CanadaIn addition to its head office and laboratory co
14、mplex 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 to obtain the latest edition from the organizationagencies in eight countries. Since 1919,
15、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 theservice organization whose mission is to provide an Standards Council of Canadaopen and effect
16、ive 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 Canadanational and international needs.For further information on CSA services, write toCanadian Stand
17、ards Association5060 Spectrum Way, Suite 100Mississauga, Ontario, L4W 5N6CanadaAlthough the intended primary application 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 tr
18、ade-mark of Canadian Standards AssociationCAN/CSA-ISO/IEC 18017:04 functions for the employment of Virtual Private Network scenariosInformation technology Telecommunications and information exchangebetween systems Private Integrated Services Network MappingJanuary 2004 Canadian Standards Association
19、 CSA/1CAN/CSA-ISO/IEC 18017:04Information technology Telecommunications andinformation exchange betweensystems Private IntegratedServices Network Mappingfunctions for the employment ofVirtual Private Network scenariosCSA PrefaceStandards development within the Information Technology sector is harmon
20、ized with international standardsdevelopment. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serveas the Canadian Advisory Committee (CAC) on ISO/IEC Joint Technical Committee 1 on InformationTechnology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the IS
21、O member body for Canadaand sponsor of the Canadian National Committee of the IEC. Also, as a member of the InternationalTelecommunication Union (ITU), Canada participates in the International Telegraph and TelephoneConsultative Committee (ITU-T).This International Standard was reviewed by the CSA T
22、CIT 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 addenda, corrigenda, etc. The CSA TCIT will review
23、 these documents for approval and publication.For a listing, refer to the CSA Information Products catalogue or CSA Info Update or contact a CSA Salesrepresentative. This Standard has been formally approved, without modification, by the TechnicalCommittee and has been approved as a National Standard
24、 of Canada by the Standards Council 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 of thepublisher. ISO/IEC material is reprinted with permission. Where the words “this I
25、nternational Standard” 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, Mississauga, Ontario, Canada L4W 5N6 1-800-463-6727 416
26、-747-4044www.csa.caReference numberISO/IEC 18017:2001(E)ISO/IEC 2001INTERNATIONAL STANDARD ISO/IEC18017First edition2001-11-01Information technology Telecommunications and information exchange between systems Private Integrated Services Network Mapping functions for the employment of Virtual Private
27、 Network scenarios Technologies de linformation Tlcommunications et change dinformation entre systmes Rseau priv intgration de services Fonctions de mappage pour lemploi de scnarios de rseau priv virtuel ISO/IEC 18017:2001(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance
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30、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 2001 All rights reserved. Unless otherwise specified, no part of this pu
31、blication 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 Ge
32、neva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.ch Web www.iso.ch ii ISO/IEC 2001 All rights reserved ISO/IEC 18017:2001(E) ISO/IEC 2001 All rights reserved iiiTable of contents Foreword iv Introduction v 1. Scope 1 2. Conformance 1 3. Normative References 1 4. Terms and def
33、initions 2 5. List of acronyms 2 6. Access arrangements 3 6.1 Separate access 4 6.2 Shared Access: Common access protocol with call discrimination 4 6.3 Dedicated Access 5 7 Capabilities at the Q reference point 5 8 Mapping functions 6 8.1 Physical Adaptation 6 8.2 Mapping Matrix 6 8.2.1 Channel All
34、ocation 6 8.2.2 Bearer Conditioning for the DQ-channel 7 8.2.3 Interface-related Functions 8 Annex A - Implementation Conformance Statement Proforma 9 ISO/IEC 18017:2001(E) iv ISO/IEC 2001 All rights reserved Foreword ISO (the International Organisation for Standardisation) and IEC (the Internationa
35、l Electrotechnical Commission) form the specialised system for world-wide standardisation. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organisation to deal with particular fields o
36、f technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organisations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. International Standards are drafted in accordance with the rules given in th
37、e ISO/IEC Directives, Part 3. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard
38、 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 shall not be held responsible for identifying any or all such patent rights. Inte
39、rnational Standard ISO/IEC 18017 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 6, Telecommunications and information exchange between systems. Annex A forms a normative part of this International Standard. ISO/IEC 18017:2001(E) ISO/IEC 2001 All righ
40、ts reserved vIntroduction This International Standard is one of a series of PISN mapping standards applicable at the C reference point. Mapping standards specify the assignment of interfaces and the multiplexed physical channel within the interface to B-channels at the Q reference point. Figure 1 sh
41、ows the relationship of this standard to other mapping standards. ISO/IEC TR 14475 Private Integrated Services network - Architecture and scenarios for Private Integrated Services Networking ISO/IEC 14474 PISN - Mapping Functions for the Employment of Dedicated Circuit Mode Connections as Inter-PTNX
42、 Connections ISO/IEC 17309 PISN - Mapping functions for the employment of a Circuit Mode Basic Service and the Supplementary Ser-vice User-to-User Signalling as a pair of On-demand Inter-PINX Connections ISO/IEC 17310 PISN Mapping Functions for the employment of 64 kbit/s Circuit Mode Connection wit
43、h 16 kbit/s Sub-multiplexing ISO/IEC 17311 PISN Mapping Functions for the employment of 64 kbit/s Circuit Mode Connection with 8 kbit/s Sub-multiplexing ISO/IEC 18017 PISN - Mapping Functions for the employment of Virtual Private Network Scenarios Bearer Conditioning Standards Bearer Modification St
44、andards Figure 1 - Structure of PISN Scenario and Mapping standards INTERNATIONAL STANDARD ISO/IEC 18017:2001(E) ISO/IEC 2001 All rights reserved 1Information technology Telecommunications and information exchange between systems Private Integrated Services Network Mapping functions for the employme
45、nt of Virtual Private Network scenarios 1. Scope This International Standard defines the mapping functions in exchanges of private integrated services networks (PISN) required for their attachment to Virtual Private Network (VPN) functionality of public (or third party provided) network equipment. M
46、apping functions are required to provide for the physical termination of the interface at the C or T reference points, and for the mapping of user channels and signalling information flows at the Q reference point to the appropriate channels or time-slots at the C or T reference point. At the T refe
47、rence, point it is assumed that the protocol used on the D channel is the enhanced version of DSS1. These protocol enhancements are given in Annex Q and Annex X of Recommendations Q.931 and Q.932 respectively. The mapping function specified in this International Standard are applicable to PINXs conn
48、ected to a VPN that supports either PISN information flows between accesses and/or PISN services. The C and Q reference points are defined in ISO/IEC 11579-1. The T reference point is defined in ITU-T Rec. I.411. The types of interfaces at the C or T reference point covered by this International Sta
49、ndard are the ISDN primary rate interface and the basic access interface. 2. Conformance In order to conform to this International Standard, a PINX shall satisfy the requirements identified in the Implementation Conformance Statement (ICS) proforma in Annex A. 3. Normative References The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to,
