1、BRITISH STANDARD BS ISO/IEC 8823-2:1997 Information technology Open Systems Interconnection Connection-orientated presentation protocol: Protocol Implementation Conformance Statement (PICS) proforma (ITU-T Rec. X.246 (1996)| ISO/IEC 8823-2:1997) ICS 35.100.60BSISO/IEC8823-2:1997 This British Standar
2、d, having been prepared under the directionof the DISC Board, waspublished under the authorityof the Standards Boardand comes into effect on 15December1997 BSI 04-2000 ISBN 0 580 28717 3 National foreword This British Standard reproduces verbatim ISO/IEC8823-2:1997and implements it as the UK nationa
3、l standard. It supersedes BS ISO/IEC8823-2:1995which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee IST/21, Open Systems Interconnection, Data Management and Open Distributed Processing, which has the responsibility to: aid enquirers to understand the text
4、; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee
5、 can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number60000added to the old number. For instance, IEC27-1has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain i
6、dentifiers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facil
7、ity of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligat
8、ions. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theISO/IEC title page, pages ii to iv, pages 1 to 19 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amen
9、dment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSISO/IEC8823-2:1997 BSI 04-2000 i Contents Page National foreword Inside front cover Foreword iii Text of ISO/IEC 8823-2 1ii blankBSISO/IEC8823-2:1997 ii BSI 04-2000 Contents Page Foreword iii Introduct
10、ion 1 1 Scope 1 2 Normative references 1 2.1 Identical Recommendations|International Standards 1 2.2 Paired Recommendations|International Standards equivalent in technical content 1 2.3 Additional references 2 3 Definitions 2 3.3 Additional terms 2 4 Abbreviations 2 5 Conformance 2 Annex A Protocol
11、Implementation Conformance Statement (PICS) proforma for the connection-oriented presentation protocol 3 A.1 Identification of PICS proforma corrigenda 3 A.2 Instructions 3 A.3 Identification of the implementation 5 A.4 Protocol Identification 6 A.5 Global statement of conformance 7 A.6 Protocol mec
12、hanisms and functional units 7 A.7 Elements of procedure related to the PICS 8 A.8 Supported PPDU parameters 12 A.9 Support of syntaxes 16 Annex B Summary of conditions 18 Table A.1 3 Descriptors: Data processing, information interchange, network interconnection, open systems interconnection, presen
13、tation layer, data transmission, connection oriented transmission, communication procedure, protocols.BSISO/IEC8823-2:1997 BSI 04-2000 iii Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwi
14、de 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 committees collaborate in f
15、ields 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 JTC 1. Draft International Standards adop
16、ted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least75% of the national bodies casting a vote. International Standard ISO/IEC8823-2was prepared by Joint Technical Committee ISO/IEC/TC 1, Information
17、technology, Subcommittee SC 21, Open systems interconnection, data management and open distributed processing, in collaboration with ITU-T. The identical text is published as ITU-T Recommendation X.246. This second edition cancels and replaces the first edition (ISO/IEC 8823-2:1995), which has been
18、technically revised. ISO/IEC8823consists of the following parts, under the general title Information technology Open Systems Interconnection Connection-oriented presentation protocol: Part 1: Protocol specification; Part 2: Protocol Implementation Conformance Statement (PICS) proforma. Annex A forms
19、 an integral part of this part of ISO/IEC 8823. Annex B is for information only.iv blankBSISO/IEC8823-2:1997 BSI 04-2000 1 Introduction This Recommendation|International Standard is one of a set of Recommendations|International Standards produced to facilitate the interconnection of information proc
20、essing systems. It is related to other Recommendations and International Standards in the set as defined by the Reference Model for Open Systems Interconnection (see ITU-T Rec. X.200|ISO/IEC 7498-1). The Reference Model subdivides the area of standardization for interconnection into a series of laye
21、rs of specification, each of manageable size. The goal of Open Systems Interconnection is to allow, with a minimum of technical agreement outside the interconnection standards, the interconnection of information processing systems: from different manufacturers; under different managements; of differ
22、ent levels of complexity; and of different technologies. ITU-T Rec. X.226|ISO/IEC8823-1specifies the connection-oriented presentation protocol. It specifies a common encoding and a number of functional units of presentation protocol procedures to be used to meet the needs of presentation-service-use
23、rs. To evaluate the conformance of a particular implementation, it is necessary to have a description of the capabilities and options which have been implemented. Such a description is called a Protocol Implementation Conformance Statement (PICS). This Recommendation|International Standard includes
24、the PICS proforma for the connection-oriented presentation protocol as defined in ITU-T Rec. X.226|ISO/IEC 8823-1. 1 Scope This Recommendation|International Standard provides the Protocol Implementation Conformance Statement (PICS) proforma for the connection-oriented presentation protocol specified
25、 in ITU-T Rec. X.226|ISO/IEC 8823-1. This PICS proforma is in compliance with the relevant requirements, and in accordance with the relevant guidance, given in ITU-T Rec. X.296| ISO/IEC 9646-7. Detail of the use of this proforma is provided in this Recommendation|International Standard. The supplier
26、 of an implementation which is claimed to conform to ITU-T Rec. X.226|ISO/IEC8823-1is required to complete a copy of the PICS proforma provided in Annex A, and is required to provide the information necessary to identify both the supplier and the implementation. 2 Normative references The following
27、Recommendations and International Standards contain provisions which, through reference in this text, constitute provisions of this Recommendation|International Standard. At the time of publication, the editions indicated were valid. All Recommendations and Standards are subject to revision, and the
28、 parties to agreements based on this Recommendation|International Standard are encouraged to investigate the possibility of applying the most recent edition of the Recommendations and Standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. The
29、 Telecommunication Standardization Bureau of the ITU maintains a list of currently valid ITU-T Recommendations. 2.1 Identical Recommendations|International Standards ITU-T Recommendation X.200 (1994)| ISO/IEC 7498-1:1994, Information technology Open Systems Interconnection Basic Reference Model: The
30、 Basic Model. ITU-T Recommendation X.215 (1995)| ISO/IEC 8326:1996, Information technology Open Systems Interconnection Session service definition. ITU-T Recommendation X.226 (1994)| ISO/IEC 8823-1:1994, Information technology Open Systems Interconnection Connection-oriented presentation protocol: P
31、rotocol specification. ITU-T Recommendation X.680 (1994)| ISO/IEC 8824-1:1995, Information technology Abstract Syntax Notation One (ASN.1): Specification of basic notation. ITU-T Recommendation X.690 (1994)| ISO/IEC 8825-1:1995, Information technology ASN.1 encoding rules: Specification of Basic Enc
32、oding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules (DER). 2.2 Paired Recommendations|International Standards equivalent in technical content ITU-T Recommendation X.290 (1995), OSI conformance testing methodology and framework for protocol Recommendations for ITU-T app
33、lications General concepts.BSISO/IEC8823-2:1997 2 BSI 04-2000 ISO/IEC 9646-1:1994, Information technology Open Systems Interconnection Conformance testing methodology and framework Part 1: General concepts. ITU-T Recommendation X.296 (1995), OSI conformance testing methodology and framework for prot
34、ocol Recommendations for ITU-T applications Implementation conformance statements. ISO/IEC 9646-7:1995, Information technology Open Systems Interconnection Conformance testing methodology and framework Part 7: Implementation Conformance Statements. CCITT Recommendation X.660 (1992), Open Systems Int
35、erconnection (OSI) Reference Model for naming and addressing. ISO 7498-3:1989, Information processing systems Open Systems Interconnection Basic Reference Model Part 3: Naming and addressing. 2.3 Additional references CCITT Recommendation X.410 (1984), Message handling systems: Remote operations and
36、 reliable transfer server. 3 Definitions For the purposes of this Recommendation|International Standard, the following definitions apply. 3.1 Terms defined in ITU-T Rec. X.226| ISO/IEC 8823-1 3.2 Terms defined in ITU-T Rec. X.290| ISO/IEC 9646-1 a) Implementation conformance statement proforma; b) I
37、mplementation conformance statement; c) Protocol Implementation Conformance Statement (PICS); d) PICS proforma. 3.3 Additional terms a) Requestor: the PPM that initiates a particular action; b) Acceptor: the PPM that accepts a particular action. 4 Abbreviations 5 Conformance A conforming PICS profor
38、ma shall be technically equivalent to the ITU-T|ISO/IEC published PICS proforma and shall preserve the numbering and ordering of the items in the ITU-T|ISO/IEC PICS proforma. A PICS which conforms to this Recommendation|International Standard shall: a) describe an implementation which conforms to IT
39、U-T Rec. X.226|ISO/IEC 8823-1; b) be a conforming PICS proforma, which has been completed in accordance with the instruction for completion given in A.2; c) include the information necessary to uniquely identify both the supplier and the implementation. ASN.1 Abstract Syntax Notation One ICS Impleme
40、ntation Conformance Statement PCI Protocol Control Information PDV Presentation Data Value PICS Protocol Implementation Conformance Statement PPDU Presentation Protocol Data UnitBSISO/IEC8823-2:1997 BSI 04-2000 3 Annex A Protocol Implementation Conformance Statement (PICS) proforma for the connectio
41、n-oriented presentation protocol 1) (This annex forms an integral part of this Recommendation|International Standard) A.1 Identification of PICS proforma corrigenda The supplier of the PICS proforma shall identify any corrigenda (i.e. Technical corrigenda or equivalent) to the published proforma tha
42、t have been applied. Suppliers of the proforma should modify the proforma, or attach relevant additional pages in order to apply the corrigenda, and then record the application of the corrigenda in Table A.1. Table A.1 A.2 Instructions A.2.1 Purpose and structure of the proforma The purpose of this
43、PICS proforma is to provide suppliers of implementations of ITU-T Rec. X.226| ISO/IEC8823-1with a consistent means of stating which capabilities have been implemented. The proforma is in the form of a questionnaire and consists of a set of items. An item is provided for each capability for which an
44、implementation choice is allowed. Items are also provided for major mandatory capabilities for which no implementation choice is allowed. Each item includes an item number, an item description, a status value specifying the support requirement, and room for a support answer to be provided by the sup
45、plier. This subclause provides general information and instructions for completion of the proforma. Subclause A.3 is for identification of the implementation. Subclause A.4 contains the means of specifying, at a high level, the protocol and corrigenda that have been implemented. Subclause A.5 contai
46、ns the global statement of conformance. Subclause A.6 onwards contain tables in which the supplier specifics details of the implementation options chosen. A.2.2 Symbols, terms and abbreviations A.2.2.1 Introduction Notations have been introduced in order to reduce the size of tables in the PICS prof
47、orma. These have allowed the use of multi-column layout where the columns are headed “Status”, and “Support”. The definition of each is given below. Additionally, the following definitions apply: A.2.2.1.1 (PICS) item: A row in a PICS proforma table. A.2.2.1.2 (PICS) question: The question to be ans
48、wered in the intersection of a PICS item and either a support column (i.e. “Is this item supported in the context applying to this table and column”) or supported values column (i.e. “What values are supported for this item in the context applying to this table and column”) in a PICS proforma table.
49、 A.2.2.1.3 status (value): An allowed entry in the status column for an item in a PICS proforma table. A.2.2.1.4 (support) answer: An allowed entry in the support or supported values columns for an item in a PICS, in answer to a PICS question. 1) Copyright release for PICS proforma Users of this Recommendation|International Standard may freely reproduce the PICS proforma in this annex so that it can be used for its intended purpose and may further publish the completed PICS. Identification of co
