1、 ITU-T RECMN*X*257 95 48b2591 Ob03142 459 INTERNATIONAL TELECOMMUN KATION UN ION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU DATA NETWORKS AND OPEN SYSTEM COMMUNICATIONS PICS PROFORMAS OPEN SYSTEMS INTERCONNECTION - X.257 (04195) INFORMATION TECHNOLOGY - OPEN SYSTEMS INTERCONNECTION - CONN
2、ECTIONLESS PROTOCOL FOR THE ASSOCIATION CONTROL SERVICE ELEMENT: PROTOCOL IMPLEMENTATION CONFORMANCE STATEMENT (PICS) PROFORMA ITU-T Recommendation X.257 (Previously “CCITT Recommendation”) ITU-T RECMN*X*257 95 W 4862591 Ob03343 395 FOREWORD ITU (International Telecommunication Union) is the United
3、Nations Specialized Agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (XTU-T) is a permanent organ of the IT. Some 179 member countries, 84 telecom operating entities, 145 scientific and industrial organizations and 38 international organizations participate
4、 in ITU-T which is the body which sets world telecommunications standards (Recommendations). The approval of Recommendations by the Members of IT-T is covered by the procedure laid down in WTSC Resolution No. 1 (Helsinki, 1993). In addition, the World Telecommunication Standardization Conference (WT
5、SC), which meets every four years, approves Recommendations submitted to it and establishes the study programme for the following period. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with IS0 and IEC. The text
6、 of ITU-T Recommendation X.257 was approved on 10th of April 1995. The identical text is also published as ISO/IEC International Standard 10035-2. NOTE In this Recommendation, the expression “Administration” is used for conciseness to indicate both a telecommunication administration and a recognized
7、 operating agency. O ITU 1995 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU. ITU-T RECMN*X-257 95 = 4862591 Ob03144 221 W Subject a
8、rea PUBLIC DATA NETWORKS ITU-T X-SERIES RECOMMENDATIONS DATA NETWORKS AND OPEN SYSTEM COMMUNICATIONS (February 1994) ORGANIZATION OF X-SERIES RECOMMENDATIONS Recommendation Series Services and Facilities In terfaces X. 1-X. 19 X.20-X.49 I Transmission, Signalling and Switching I X.50-X.89 I Network
9、Aspects Maintenance X.90-X.149 X.150-X. 179 I Administrative Arrangements I X.180-X.199 I OPEN SYSTEMS INTERCONNECTION Model and Notation - x.200-x.209 Service Definitions Connection-mode Protocol Swcifications I Connectionless-mode Protocol Specifications I X.230-X.239 I X.210-X.219 X.220-X.229 PIC
10、S Proformas Protocol Identification I Security Protocois I X.270-X.279 I X.240-X.259 X.260-X.269 Layer Managed Objects X.280-X.289 Conformance Testing X.290-X.299 INTERWORKING BETWEEN NETWORKS General I Mobile Data Transmission Systems I X.350-X.369 I X.300-X.349 Management MESSAGE HANDLING SYSTEMS
11、X.370-X.399 X.400-X.499 DIRECTORY OS1 NETWORKING AND SYSTEM ASPECTS X.500-X.599 I OS1 MANAGEMENT I X.700-X.799 I Networking X.600-X.649 I Commitment, Concurrency and Recovery I X.850-X.859 I Naming, Addressing and Registration Abstract Syntax Notation One (ASN. 1) X.650-X.679 X.680-X.699 SECURITY OS
12、1 APPLICATIONS X.800-X.849 Transaction Processing X.860-X.879 Remote Operations X.880-X.899 OPEN DISTRIBUTED PROCESSING X.900-X.999 95 W . Ob03145 . CONTENTS Summary . Introduction . 1 Scope 2 Normative references . Identical Recommendations I International Standards Paired Recommendations i Interna
13、tional Standards equivalent in technical contents . 2.1 2.2 3 Definitions 4 Abbreviations . 5 Conformance Annex A - Protocol Implementation Conformance Statement (PICS) proforma for the connectionless ACSE protocol A . 1 A.2 A.3 A.4 AS A.6 A.7 Identification of PICS proforma comgenda . Instructions
14、A.2.1 A.2.2 Symbols. terns and abbreviations A.2.2.1 Introduction . A.2.2.2 Prerequisite notation . A.2.2.4 Status column Purpose and structure of the proforma A.2.2.3 Item numbering . Definitions applying to the table in A.6 Definitions applying to the tables in A.7 Identification of the implementa
15、tion . A.3.2 Implementation details A.2.2.4.1 A.2.2.4.2 A.2.2.5 Support column . A.2.3 Instructions for completion . A.3.1 Date of statement Protocol identification . A.4.1 ITU-T Rec . X.237 I ISO/IEC 10035-1 protocol details A.4.2 ITU-T Rec . X.237 I ISOiEC 10035-1 technical corrigenda implemented
16、. Global statement of conformance . Support for UD APDU . Supported parameters A.7.1 UD APDU sender . A.7.2 UD APDU receiver . Page 11 111 . 1 1 1 2 2 2 2 3 3 3 3 3 3 4 4 4 4 4 5 5 5 5 5 6 6 6 6 6 7 7 7 ITU-T Rec . X.257 (1995 E) 1 Summary This Recommendation I International Standard provides the pr
17、otocol implementation conformance statement (PICS) proforma for the OS1 connectionless protocol for the Association Control Service Element (ACSE) which is specified in Recommendation X.237. The PICS proforma represents, in tabular form, the mandatory and optional elements of the connectionless ACSE
18、 protocol. The PICS proforma is used to indicate the features and choices of a particular implementation of the connectionless ACSE protocol, ii ITU-T Rec. X.257 (1995 E) ITU-T RECMN*X.257 95 m 48b2591 Ob03147 T30 Introduction This Recommendation I International Standard is one of a set of Recommend
19、ations and International Standards produced to facilitate the interconnection of information processing 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 I ISO/IEC 7498-1). T
20、he Reference Model subdivides the area of standardization for interconnection into a series of layers of specification, each of manageable size. The goal of Open Systems Interconnection is to allow, with a minimum of technical agreement outside the interconnection Recommendations and International S
21、tandards, the interconnection of information processing systems: - from different manufacturers; - under different managements; - - of different technologies. of different levels of complexity; and ITU-T Rec. X.237 I ISO/IEC 10035-1 specifies the connectionless protocol for the Association Control S
22、ervice Element (ACSE). To evaluate the conformance of a particular implementation, it is necessary to have a statement of the capabilities and options which have been implemented. Such a statement is called a Protocol Implementation Conformance Statement (PICS). This Recommendation I International S
23、tandard includes the PICS proforma for the connectionless ACSE protocol as defined in ITU-T Rec. X.237 I ISOAEC 10035-1. ITU-T Rec. X.257 (1995 E) iii INTERNATIONAL STANDARD ITU-T RECOMMENDATION INFORMATION TECHNOLOGY - OPEN SYSTEMS INTERCONNECTION - CONNECTIONLESS PROTOCOL FOR THE ASSOCIATION CONTR
24、OL SERVICE ELEMENT: PROTOCOL IMPLEMENTATION CONFORMANCE STATEMENT (PICS) PROFORMA 1 Scope This Recommendation 1 International Standard provides the Protocol Implementation Conformance Statement (PICS) proforma for ITU-T Rec. X.237 I ISO/IEC 10035-1 in compliance with the relevant requirements, and i
25、n accordance with the relevant guidance given in IT-T Rec. X.296 I ISO/IEC 9646-7. Detail of the use of this proforma is provided in this Recommendation I International Standard. The supplier of an implementation which is claimed to conform to ITU-T Rec. X.237 I ISO/IEC 10035-1 is required to comple
26、te 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 Recommendations and International Standards contain provisions which, through reference in this text, con
27、stitute provisions of this Recommendation I International Standard. At the time of publication, the editions indicated were valid. All Recommendations and Standards are subject to revision, and parties to agreements based on this Recommendation I International Standard are encouraged to investigate
28、the possibility of applying the most recent edition of the Recommendations and Standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. The Telecommunication Standardization Bureau of the ITU maintains a list of currently valid ITU-T Recommenda
29、tions. 2.1 Identical Recommendations I International Standards - ITU-T Recommendation X.200 (1994) I ISO/IEC 7498-1 :1994, Information technology - Open Systems Interconnection - Basic Reference Model: The Basic Model. ITU-T Recommendation X.210 (1993) I ISO/IEC 10731:1994, Infomation technology - O
30、pen Systems Interconnection - Basic Reference Model - Conventions for the definition of OSI services. ITU-T Recommendation X.215 (1994) I ISOfiEC 8326 .I, Information technology - Open Systems Interconnection - Session service definition. ITU-T Recommendation X.216 (1994) I ISO/IEC 8822: 1994, Infom
31、ation technology - Open Systems Interconnection - Presentation service definition. ITU-T Recommendation X.217 (1995) I ISOAEC 8649 .*I, Infomation technology - Open Systems Interconnection - Service definition for the Association Control Service Element. ITU-T Recommendation X.237 (1995) I ISO/IEC 1
32、0035-1:1995, Information technology - Open Systems Interconnection - Connectionless protocol for the Association Control Service Element: Protocol specijcation. - - - - - *) To be pubiished. ITU-T Rec. X.257 (1995 E) 1 - ITU-T RECMN*X=257 95 4862571 Ob03149 803 9 ISOIIEC 10035-2 : 1995 (E) 2.2 Paire
33、d Recommendations I International Standards equivalent in technical contents - ITU-T Recommendation X.290 (1993, OS1 conformance testing methodology and framework for protocol Recommendations for ITU-T applications - General concepts. ISOAEC 9646- 1 : 1994, Information technology - Open Systems Inte
34、rconnection - Conformance testing methodology and framework - Part I: General concepts. ITU-T Recommendation X.2962), OS1 conformance testing methodology and framework for protocol Recommendations for ITU-T applications - Implementation conformance statements. ISO/IEC 9646-7: 1995, Information techn
35、ology - Open Systems Interconnection - Conformance testing methodology and framework - Part 7: Implementation Conformance Statements. - 3 Definitions For the purposes of this Recommendation I International Standard, the following definitions apply. 3.1 3.2 Terms defined in ITU-T Rec. X.237 I ISO/IEC
36、 10035-1. The following terms defined in ITU-T Rec. X.290 I ISOIIEC 9646-1: a) Implementation conformance statement; b) Implementation conformance statement proforma; c) d) PICS proforma. Protocol Implementation Conformance Statement (PICS); 4 Abbreviations For the purposes of this Recommendation I
37、International Standard, the following abbreviations apply: ACSE Association Control Service Element APDU Application Protocol Data Unit ICs Implementation Conformance Statement PICS Protocol Implementation Conformance Statement PDU Protocol Data Unit UD Unit Data 5 Conformance A conforming PICS shal
38、l be technically equivalent to the ITU-T I ISODEC published PICS proforma and shall preserve the numbering and ordering of the items in the ITU-T I ISODEC PICS proforma. A PICS which conforms to this Recommendation I International Standard shall: a) describe an implementation which conforms to ITU-T
39、 Rec. X.237 I ISO/IEC 10035-1; b) be a confirming PICS proforma, which has been completed in accordance with the instruction for c) include the information necessary to uniquely identify both the supplier and the implementation. completion given in A.2; 2, Presently at the stage of draft. 2 ITU-T Re
40、c. X.257 (1995 E) - ITU-T RECMN*X.257 95 4862593 Ob03L50 525 ISO/IEC 10035-2 : 1995 (E) Identification of corrigenda applied to this PICS proforma Annex A3) IT-TRec. X.257 (1995) I ISO/IEC 10035-2:1995 com: COK: com: Protocol Implementation Conformance Statement (PICS) proforma for the connectionles
41、s ACSE protocol (This annex forms an integral part of this Recornmendation I International Standard) A.l The supplier of the PICS proforma shall identify any corrigenda e. Technical Corrigenda or equivalent) to the published proforma that have been applied. Suppliers of the proforma should modify th
42、e proforma, or attach relevant additional pages in order to apply the corrigenda, and then record the application of the corrigenda in the table below. Identification of PICS proforma corrigenda A.2 Instructions A.2.1 The purpose of this PICS proforma is to provide suppliers of implementations of IT
43、U-T Rec. X.237 I ISO/IEC 10035-1 with 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 implementation choice is allowed. Items are also provided
44、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 supplier. This subclause provides general information and ins
45、tructions 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 AS contains the global statement of conformance. Subclause A.6 onwar
46、ds contain tables in which the supplier specifies details of the implementation options chosen. A.2.2 Symbols, terms and abbreviations A.2.2.1 Introduction In order to reduce the size of tables in the PICS proforma, notations have been introduced. These have allowed the use of multi-column layout wh
47、ere the columns are headed Status, and Support. The definition of each is given below. Additionally, the following definitions apply: (PICS) item: A row in a PICS proforma table. (PICS) question: The question to be answered in the intersection of a PICS item and either a support column (Le. “Is this
48、 item supported in the context applying to this table and column?”) or supported values column (Le. “What values are supported for this item in the context applying to this table and column?”) in a PICS proforma table. Purpose and structure of the proforma 3, Copyright release for PICS proformas Use
49、rs of this Recommendation I Intemational 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. 3 ITU-T Rec. X.257 (1995 E) - ITU-T RECMNMX.257 75 W 48b2593 Ob03353 461 W ISOAEC 10035-2 : 1995 (E) status (value): An allowed entry in the status column for an item in a PICS proforma table. (support) answer: An allowed entry in the support or supported values columns for an item in a PICS, in answer to a PICS question. A.2.2.2 Prerequis
