BS EN ISP 10613-8-1995 Information technology - International standardized profile RA - Relaying the connectionless-mode network service - Definition of profile RA51 1111 relaying C.pdf

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1、BRITISH STANDARD BS EN ISP 10613-8:1997 Incorporating Amendment No. 1 to BS ISO/IEC ISP 10613-8:1994 (renumbers BS as BSEN ISP 10613-8: 1997) Information technology International Standardized ProfileRA Relaying the Connectionless-mode Network Service Part 8: Definition of profile RA51.1111, relaying

2、 the Connectionless-mode Network Service between CSMA/CD LAN subnetworks and PSDNs using virtual calls over a PSTN leased line permanent access The European Standard EN ISP 10613-8:1996 has the status of a British Standard ICS 35.100.05BSEN ISP 10613-8:1997 This British Standard, having been prepare

3、d under the directionof the Information Systems Technology Standards Policy Committee, was publishedunder the authorityofthe Standards Boardand comes into effect on 15 January 1995 BSI 03-2000 The following BSI references relate to the work on this standard: Committee reference IST/6 Draft for comme

4、nt 92/68655 DC ISBN 0 580 23576 9 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Information Systems Technology Standards Policy Committee (IST/-) to Technical Committee IST/6, upon which the following bodies were represented: British C

5、omputer Society British Telecommunications plc CCTA (the Government Centre for Information Systems) Digital Equipment Co. Ltd. IBM United Kingdom Ltd. Institution of Electrical Engineers International Computers Limited Joint Information Systems Committee Logica UK Ltd. Nine Tiles Computer Systems Lt

6、d. Rank Xerox Ltd. Amendments issued since publication Amd. No. Date Comments 9574 September 1997 Indicated by a sideline in the marginBSEN ISP 10613-8:1997 BSI 03-2000 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Foreword iii Text of ISO/IEC ISP 10613-8

7、1BSEN ISP 10613-8:1997 ii BSI 03-2000 National foreword This British Standard has been prepared by Technical Committee IST/6 and is the English language version of EN ISP 10613-8:1996 Information technology International Standardized Profile RA Relaying the Connectionless-mode Network Service Part 8

8、: Definition of profile RA51.1111, relaying the Connectionless-mode Network Service between CSMA/CD LAN subnetworks and PSDNs using virtual calls over a PSTN leased line permanent access, published by the European Committee for Standardization (CEN). It is identical with ISO/IEC ISP 10613-8:1994 pub

9、lished by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It supersedes DD ENV 41801-8:1992, which is withdrawn. This British Standard is published under the direction of the Information Systems Technology Standards Policy Committee w

10、hose Technical Committee IST/6 has the responsibility to: aid enquirers to understand the text; present to the responsible international committee any enquiries on interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and pro

11、mulgate them in the UK. NOTEInternational and European Standards, as well as overseas standards, are available from Customer Services, BSI, 389 Chiswick High Road, London W4 4AL. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are

12、 responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theEN ISP title page, page 2, the ISO/IEC ISP title page, pages ii to

13、 iv, pages1to4 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISP 10613-8 January 1996 ICS 35.100 Supersedes E

14、NV 41801-8:1992 Descriptors: Data processing, information interchange, network interconnection, open systems interconnection, data transmission, communication procedure, control procedures, network layer, profiles. English version Information technology International Standardized Profile RA Relaying

15、 the Connectionless-mode Network Service Part 8: Definition of profile RA51.1111, relaying the Connectionless-mode Network Service between CSMA/CD LAN subnetworks and PSDNs using virtual callsover PSTN leased line permanent access (ISO/IEC ISP 10613-8:1994) Technologies de linformation Profil normal

16、is international RA Relais de service de rseau en mode sans connexion Partie 8: Dfinition du profil RA51.1111, relais de service de rseau en mode sans connexion entre sous-rseaux CSMA/CD LAN et PSDNs utilisant des appels virtuels sur un accs permanent en ligne allou PSTN (ISO/IEC ISP 10613-8:1994) T

17、his European Standard was approved by CEN on 1995-10-04. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical reference

18、s concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into i

19、ts own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switz

20、erland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1996 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN

21、 and its members. Ref. No. EN ISP 10613-8:1996 EENISP 10613-8:1996 BSI 03-2000 2 Foreword The text of the International Standard from ISO/IEC/JTC 1, Information technology, of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) has been ta

22、ken over as a European Standard by CEN Technical Board. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by July 1996, and conflicting national standards shall be withdrawn at the latest by July 1996.

23、 According to CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. N

24、OTEEN ISP 10613-8 replaces ENV 41801-8:1992. For the time being, this document exists in the English version only.ISO/IEC ISP 10613-8:1994(E) ii BSI 03-2000 Contents Page Foreword iii Introduction 1 1 Scope 1 1.2 Position within the Taxonomy 1 1.3 Scenario 1 2 Normative references 2 3 Definitions 2

25、4 Abbreviations 2 5 Requirements 3 5.1 Static Conformance Requirements 3 5.2 Dynamic Conformance Requirements 3 Annex A (normative) ISPICS Requirements List 4 A.1 General Options of the Profile 4 A.2 Base Standards Selected and Combined in the Profile 4 A.3 Constraints on Base Standards 4 Figure 1 S

26、cenario of applicability of the RA51.1111 profile 1 Figure 2 Profile Protocol Stack for RA51.1111 Intermediate System 2ISO/IEC ISP 10613-8:1994(E) BSI 03-2000 iii Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the Specia

27、lized 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 technical activity. ISO and IEC technical com

28、mittees 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 technical committee, ISO/IEC JTC1. In addition

29、 to developing International Standards, ISO/IEC JTC1 has created a Special Group on Functional Standardization for the elaboration of International Standardized Profiles. An International Standardized Profile is an internationally agreed, harmonized document which identifies a standard or group of s

30、tandards, together with options and parameters, necessary to accomplish a function or a set of functions. Draft International Standardized Profiles are circulated to national bodies for voting. Publication as an International Standardized Profile requires approval by at least75% of the national bodi

31、es casting a vote. International Standardized Profile ISO/IEC ISP10613-8 was prepared with the collaboration of Asia-Oceania Workshop (AOW); European Workshop for Open Systems (EWOS); Open Systems Environment Implementors Workshop (OIW). ISO/IEC ISP 10613 consists of several parts, under the general

32、 title Information technology International Standardized Profile RA Relaying the Connectionless-mode Network Service: Part 1: Subnetwork-independent requirements; Part 2: LAN subnetwork-dependent, media-independent requirements; Part 3: CSMA/CD LAN subnetwork-dependent, media-dependent requirements;

33、 Part 4: FDDI LAN subnetwork-dependent, media-dependent requirements; Part 5: Definition of profile RA51.51, relaying the Connectionless-mode Network Service between CSMA/CD LAN subnetworks; Part 6: Definition of profile RA51.54, relaying the Connectionless-mode Network Service between CSMA/CD LAN s

34、ubnetworks and FDDI LAN subnetworks; Part 7: PSDN subnetwork-dependent, media-dependent requirements for virtual calls over a permanent access; Part 8: Definition of profile RA51.1111, relaying the Connectionless-mode Network Service between CSMA/CD LAN subnetworks and PSDNs using virtual calls over

35、 a PSTN leased line permanent access; Part 9: Definition of profile RA51.1121, relaying the Connectionless-mode Network Service between CSMA/CD LAN subnetworks and PSDNs using virtual calls over a digital data circuit/CSDN leased line permanent access; Part 10: Token Ring LAN subnetwork-dependent, m

36、edia-dependent requirements; Part 11: Definition of profile RA51.53, relaying the Connectionless-mode Network Service between CSMA/CD LAN subnetworks and Token Ring LAN subnetworks; Part 12: Definition of profile RA53.53, relaying the Connectionless-mode Network Service between Token Ring LAN subnet

37、works; Part 13: Definition of profile RA53.54, relaying the Connectionless-mode Network Service between Token Ring LAN subnetworks and FDDI LAN subnetworks;ISO/IEC ISP 10613-8:1994(E) iv BSI 03-2000 Part 14: Definition of profile RA54.54, relaying the Connectionless-mode Network Service between FDDI

38、 LAN subnetworks; Part 15: Definition of profile RA53.1111, relaying the Connectionless-mode Network Service between Token Ring LAN subnetworks and PSDNs using virtual calls over a PSTN leased line permanent access; Part 16: Definition of profile RA53.1121, relaying the Connectionless-mode Network S

39、ervice between Token Ring LAN subnetworks and PSDNs using virtual calls over a digital data circuit/CSDN leased line permanent access; Part 17: Definition of profile RA54.1111, relaying the Connectionless-mode Network Service between FDDI LAN subnetworks and PSDNs using virtual calls over a PSTN lea

40、sed line permanent access; Part 18: Definition of profile RA54.1121, relaying the Connectionless-mode Network Service between FDDI LAN subnetworks and PSDNs using virtual calls over a digital data circuit/CSDN leased line permanent access; Annex A forms an integral part of this part of ISO/IEC ISP 1

41、0613.ISO/IEC ISP 10613-8:1994(E) BSI 03-2000 1 Introduction This International Standardized Profile (ISP) is defined in accordance with the principles specified by ISO/IEC Technical Report 10000. The context of Functional Standardization is one area in the overall field of Information Technology (IT

42、) standardization activities, covering base standards, profiles, and registration mechanisms. Aprofile defines a combination of base standards that collectively perform a specific well-defined IT function. Profiles standardize the use of options and other variations in the base standards, and provid

43、e a basis for the development of uniform, internationally recognized system tests. ISPs are produced not simply to “legitimize” a particular choice of base standards and options, but to promote real system interoperability. One of the most important rules for an ISP is to serve as the basis for the

44、development (by organizations other than ISO and IEC) of internationally recognized tests. The development and widespread acceptance of tests based on this and other ISPs is crucial to the successful realization of this goal. ISO/IEC ISP 10613 consists of several parts of which this is part 8. ISO/I

45、EC ISP 10613-1 specifies the profile requirements that are subnetwork-independent. There are further parts which specify subnetwork-dependent and media-dependent requirements. In addition, for each individual profile there is a part of ISO/IEC ISP 10613 which identifies the specific requirements of

46、that profile, making reference to appropriate material from part1 and from the subnetwork dependent parts of ISO/IEC ISP 10613. 1 Scope This International Standardized Profile is applicable to interworking units concerned with operating in the Open Systems Interconnection (OSI) environment. It speci

47、fies a combination of OSI base standards that collectively provide a Network Relay function for the connectionless-mode Network Service. This part of ISO/IEC ISP 10613 defines the RA51.1111 profile, which is applicable to interworking units operating between CSMA/CD LAN subnetworks and PSDNs using V

48、irtual Calls over a PSTN leased line permanent access. 1.2 Position within the Taxonomy The taxonomy of profiles is defined in ISO/IEC TR 10000-2. This part of ISO/IEC ISP 10613 defines the profile: 1.3 Scenario Figure 1 illustrate the configuration of systems to which the RA51.1111 profile is appli

49、cable. The figure shows two reference points, but an implementation of this profile may include more attachments to CSMA/CD LANs and PSDNs, with a reference point at each. RA51.1111: Relaying the Connectionless-mode Network Service between CSMA/CD LAN subnetworks and PSDNs using virtual calls over a PSTN leased line permanent access. Figure 1 Scenario of applicability of the RA51.1111 profileISO/IEC ISP 10613-8:1994(E) 2 BSI 03-2000 As this profile is a member of the RA group, it