CAN CSA-ISO IEC 8649-2002 Infomation technology - Open Systems Interconnection - Service definition for the Association Control Service Element.pdf

1、 National Standard of CanadaCAN/CSA-ISO/IEC 8649:02(ISO/IEC 8649:1996)International Standard ISO/IEC 8649:1996 (second edition, 1996-10-15), has been adopted withoutmodification (IDT) as CSA Standard CAN/CSA-ISO/IEC 8649:02, which has been approved as a NationalStandard of Canada by the Standards Co

2、uncil of Canada.ISBN 1-55324-426-5 February 2002Reference numberISO/IEC 8649:1996(E)The 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

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17、dards AssociationInformation technology Open Systems Interconnection CAN/CSA-ISO/IEC 8649:02 Service definition for the Association Control Service ElementFebruary 2002 Canadian Standards Association CSA/1CAN/CSA-ISO/IEC 8649:02Information technology OpenSystems Interconnection Servicedefinition for

18、 the AssociationControl Service ElementCSA PrefaceStandards development within 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

19、/IEC Joint Technical Committee 1 onInformation 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 member of theInternational Telecommunication Union (ITU), Canada participates in the

20、 International Telegraph andTelephone Consultative Committee (ITU-T).This International Standard was reviewed by the CSA TCIT under the jurisdiction of the StrategicSteering Committee on Information Technology and deemed acceptable for use in Canada. (Acommittee membership list is available on reque

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24、anadian Standards Association 178 Rexdale Boulevard, Toronto, Ontario, Canada M9W 1R31-800-463-6727 416-747-4044www.csa.caINTERNATIONAL STANDARD lSO/IEC 8649 Second edition 1996-l O-l 5 Information technology - Open Systems Interconnection - Service definition for the Association Control Service Ele

25、ment Technologies de Iinforma tion - In terconnexion de syst under different managements; of different levels of complexity; and the - of different technologies. This Service Definition recognizes that application-processes may wish to communicate with each other for a wide variety of reasons. Howev

26、er, any communication will require the performance of certain services independent of the reasons for communication. The application-service-element defined herein provides such services. This Service Definition defines services provided by the application-service-element for application-association

27、 control: the Association Control Service Element (ACSE). The ACSE provides basic facilities for the control of an application association between two application-entities. The ACSE includes two optional functional units. One functional unit supports the exchange of information in support of authent

28、ication during association establishment. The second functional unit supports the negotiation of application context during association establishment. The ACSE services apply to a wide range of application-process communications. The ACSE services apply to a wide range of application-process communi

29、cation requirements. It is recognized that, with respect to ACSE Quality of Services (QOS) described in clause 9, work is still in progress to provide an integrated treatment of QOS across all layers of the OS1 Reference Model, and to ensure that the individual treatments in each layer service satis

30、fy overall QOS objectives in a consistent manner. As a consequence, an addendum may be added to this Service Definition at a later time which reflects further QOS developments and integration. This page intentionally left blank ISO/IEC 8649 : 1996 (E) INTERNATIONAL STANDARD IT b) application-functio

31、n; C) application Layer; d) application-process; e) application-protocol-control-information; f) application-protocol-data-unit; g) application-service-element; h) connectionless-mode presentation-service; 0 (N)-connectionless-mode transmission; j) (N)-function; k) presentation-connection; 1) presen

32、tation-service; m) session-connection; n) session-protocol; and 0) session-service. 2 IT b) password; and c) peer-entity authentication. 3.1.3 Naming and addressing definitions This Service Definition makes use of the following terms defined in CCITT Rec. X.650 I IS0 7498-3: a) application-process t

33、itle; b) application-entity qualifier; C) application-entity title; l) d) application-process invocation-identifier; e) application-entity invocation-identifier; and f) presentation address. 32 . Service conventions definitions This Service Definition makes use of the following terms defined in ITU-

34、T Rec. X.2 10 I ISO/IEC/lO73 1: a) service-provider; b) service-user; Cl confirmed service; d) non-confirmed service; e) provider-initiated service; f) primitive; g) request (primitive); h) indication (primitive); 0 response (primitive); and j) confirm (primitive). 33 . Presentation service definiti

35、ons This Service Definition makes use of the following terms defined in ITU-T Rec. X.216 I ISO/IEC 8822: a) abstract syntax; b) abstract syntax name; C) connectionless-mode (presentation); d) default context; e) defined context set; f) functional unit (presentation); g) normal mode (presentation); h

36、) presentation context; 0 presentation data value; and j) X.4 lo- 1984 mode (presentation). I) As defined in CCITT Rec. X.650 I IS0 7498-3, an application-entity title is composed of an application-process title and an application-entity qualifier. The ACSE service provides for the transfer of an ap

37、plication-entity title value by the transfer of its component values. ITU-T Rec. X.217 (1995 E) 3 ISO/IEC 8649 : 1996 (E) 34 . Application Layer Structure definitions This Service Definition makes use of the following terms defined in ISO/IEC 9545: a application-context; b) application-entity invoca

38、tion; C) d) control function; and application-service object. 35 . ACSE service definitions For the purposes of this Service Definition, the following definitions apply: 3.5.1 application-association; association: A cooperative relationship among application-entity invocations which enables the comm

39、unication of information and the coordination of their joint operation for an instance of communication. This relationship may be formed by the transfer of application-protocol-control-information using the presentation service. 3.5.2 Association Control Service Element: The particular application-s

40、ervice-element defined in this Service Definition. 3.5.3 ACSE service-user: The part of the application-entity that makes use of ACSE services. 3.5.4 ACSE service-provider: An abstraction of the totality of those entities which provide ACSE services to peer ACSE service-users. 3.5.5 requestor: The A

41、CSE service-user that issues the request primitive for a particular ACSE service. For a confirmed service, it also receives the confirm primitive. 3.5.6 acceptor: The ACSE service-user that receives the indication primitive for a particular ACSE service. For a confirmed service, it also issues the r

42、esponse primitive. 3.5.7 association-initiator: The ACSE service-user that initiates a particular association, i.e. the requestor of the A-ASSOCIATE service that establishes the association. 3.5.8 association-responder: The ACSE service-user that is not the initiator of a particular association, i.e

43、. the acceptor of the A-ASSOCIATE service that establishes the association. 3.5.9 authentication: The corroboration of the identity of objects relevant to the establishment of an association. For example, these can include the AEs, APs, and the human users of applications. NOTE - This term has been

44、defined to make it clear that a wider scope of authentication is being addressed than is covered by peer-entity authentication in CCITI Rec. X.800 I IS0 7498-2. 3.5.10 authentication-function: An application-function within an exchanges authentication-values with a peer authentication-function. appl

45、ication-enti .tY invocation that processes and 3.5.11 authentication-value: The output from an authentication-function to be transferred to a peer ACSE service- user for input to the peers authentication-function. 3.5.12 authentication-mechanism: The specification processing, and transferring authen

46、tication-values. of a specific set of authentication-function rules for defining, 3.5.13 normal mode: The mode of ACSE operation that results in the transfer of ACSE semantics, using the presentation-service. 3.5.14 X.410-1984 mode: The mode of ACSE operation that allows ACSE service-users to interw

47、ork using the protocol specified in Recommendation X.410, 1984 version. The use of this mode results in no transfer of ACSE semantics. 3.5.15 disrupt: A service procedure is disrupted by another service procedure if the second service results in service primitives not being used as specified for the

48、 procedure of the first service. 4 Abbreviations For the purposes of this Recommendation I International Standard, the following abbreviations apply: ACSE Association Control Service Element AE application-entity 4 IT the authentication-value is an APDU of the ASE. 6.2.2 ACSE authentication faciliti

49、es The ACSE Kernel functional unit does not support authentication. However, AP Title, AE Qualifier, AP invocation- identifier and AE invocation-identifier values are optionally transferred during the establishment of an association. They may be used to identify the calling, called and responding AEIs. 6 ITU-T Rec. X.217 (1995 E) ISO/IEC8649:1996(E) The ACSE Authentication functional unit supports the transfer of authentication-values as part of the A-ASSOCIATE service. An authentication-value is treated as an atomic item by ACSE. Its semantics are transparent to