1、ITU-T RECMNaX-ZYS 95 W L18b2591 Ob13058 833 W INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU DATA NETWORK AND OPEN SYSTEM COM M UN ICATIO NS OPEN SYSTEMS INTERCONNECTION - PICS PROFORMAS X.245 (04/95) INFORMATION TECHNOLOGY - OPEN SYSTEMS INTERCONNECTION
2、- CONNECTION-ORIENTED SESSION PROTOCOL: PROTOCOL IMPLEMENTATION CONFORMANCE STATEMENT (PICS) PROFORMA ITU-T Recommendation X.245 (Previously “CCITT Recommendation”) FOREWORD ITU (International Telecommunication Union) is the United Nations Specialized Agency in the field of telecommunications. The I
3、T Telecommunication Standardization Sector (ITU-T) is a permanent organ of the ITU. Some 179 member counuies, 84 telecom operating entities, 145 scientific and industrial organizations and 38 international organizations participate in ITU-T which is the body which sets world telecommunications stand
4、ards (Recommendations). The approval of Recommendations by the Members of ITU-T is covered by the procedure laid down in WTSC Resolution No. 1 (Helsinki, 1993). In addition, the World Telecommunication Standardization Conference (WTSC), which meets every four years, approves Recommendations submitte
5、d 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 of ITU-T Recommendation X.245 was approved on 10th of April 1995. T
6、he identical text is also published as ISOIIEC Intemational Standard 8327-2. NOTE In this Recommendation, the expression Administration” is used for conciseness to indicate both a telecommunication administration and a recognized private operating agency. O ITU 1996 All rights reserved. No part of t
7、his 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, except as noted in footnote 1) in Annex A. ITU-T RECMN*X-245 95 4862591 Ob13060 491 Network Aspects ITU-T X-SERIES RE
8、COMMENDATIONS DATA NETWORKS AND OPEN SYSTEM COMMUNICATIONS (February 1994) ORGANIZATION OF X-SERIES RECOMMENDATIONS X.90-X. 149 Subject area Recommendation Series I PUBLIC DATA NETWORKS Services and Facilities 1 CONTENTS Summary . Introduction . 1 Scope 2 Normative references . Identical Recommendat
9、ions I International Standards Paired Recommendations I International Standards equivalent in technical content 3 Definitions 4 Abbreviations . 5 Conformance Annex A - Protocol Implementation Conformance Statement (PICS) Proforma for the Connection-Oriented Session Protocol 2.1 2.2 A . 1 A.2 A.3 A.4
10、 AS A.6 A.7 dentification of PICS proforma corrigenda . nstnictions A.2.1 Purpose and structure of the proforma A.2.2 Symbols, terms and abbreviations A.2.2.1 Introduction . A.2.2.2 Item numbering . A.2.2.3 Status column A.2.2.4 Support column . A.2.2.5 Value column A.2.2.6 Mnemonic column A.2.2.7 L
11、ength column A.2.3 Instructions for completion . Identification of the implementation . A.3.1 Date of statement A.3.2 implementation details Protocol Identification A.4.1 ITU-T Rec . X.225 I ISO/IEC 8327-1 protocol details A.4.2 ITU-T Rec . X.225 I ISODEC 8327-1 protocol versions . A.4.3 ITU-T Rec .
12、 X.225 I ISO/IEC 8327-1 technical corrigenda implemented . Global statement of conformance . Supported functional units and protocol mechanisms A.6.1 Functional units . A.6.2 Protocol mechanisms Supported SPDUs . A.7.1 Kernel functional unit . A.7.1.2 Support for the SPDUs associated with the Kernel
13、 functional unit A.7.1.3 Support for the SPDUs associated with Token Exchange Negotiated Release functional unit . A.7.2.1 Supported roles . A.7.2.2 Support for the SPDUs associated with the Negotiated Release functional unit Half Duplex functional unit A.7.3.1 Supported roles . A.7.3.2 Support or t
14、he SPDUs associated with the Half Duplex functional unit . A.7.1.1 Supported roles . A.7.2 A.7.3 A.7.4 Duplex functional unit ITU-T Rec . X.245 (1995 E) Page iv iv 1 1 1 1 2 2 2 3 3 3 3 3 3 4 4 6 6 6 6 7 7 7 7 8 8 8 8 8 9 9 9 10 10 10 11 11 11 11 11 12 12 12 12 1 ITU-T RECMN*X*245 95 4862593 06330b2
15、 264 M A.7.5 Expedited Data functional unit . A.7.5.1 Supported roles . A.7.5.2 Support for the SPDU associated with the Expedited Data functional unit A.7.6 Typed Data functional unit . A.7.6.1 Supported roles . Capability Data functional unit . A.7.6.2 Support for the SPDU associated with the Type
16、d Data functional unit A.7.7.1 Supported roles . A.7.7.2 Support for the SPDUs associated with the Capability Data functional unit A.7.7 A.7.8 Minor synchronize functional unit A.7.8.1 Supported roles . Support for the SPDUs associated with the Minor synchronize functional unit Symmetric synchronize
17、 functional unit A.7.9.1 Supported roles . A.7.9.2 Support for the SPDUs associated with the Symmetric synchronize functional unit . Data separation functional unit . Major synchronize functional unit A.7.11.1 Supported roles . A.7.8.2 A.7.9 A.7.10 A.7.11 A.7.11.2 Support for the SPDUs associated wi
18、th the Major synchronize functional A.7.12 Resynchronize functional unit A.7.12.1 Supported roles . A.7.12.2 Supported resynchronize types . A.7.13 Exceptions functional unit A.7.13.1 Supported roles . Activity management functional unit A.7.14.1 Supported roles . A.7.12.3 Support for the SPDUs asso
19、ciated with the Resynchronize functional unit . A.7.13.2 Support for the SPDUs associated with the Exceptions functional unit . A.7.14 A.7.14.2 Support for the SPDUs associated with the Activity management functional unit A.8 Supported SPDU-parameters A.8.1 Connect (CN) SPDU . A.8.1.1 Connection Ide
20、ntifier A.8.1.2 Connect/Accept Item . A.8.1.3 Single Items Overflow Accept (OA) SPDU Connect Data Overflow (CDO) SPDU . A.8.4 Accept (AC) SPDU . A.8.4.1 Connection Identifier A.8.4.2 ConnecdAccept Item . A.8.4.3 Single Items A.8.5 Refuse (RF) SPDU A.8.5.1 Connection Identifier A.8.5.2 Single Items A
21、.8.6 Finish (FN) SPDU . A.8.7 Disconnect (DN) SPDU A.8.8 Not Finish (NF) SPDU A.8.9 Abort (AB) SPDU . A.8.10 Abort Accept (AA) SPDU A.8.1 1 Data Transfer (DT) SPDU A.8.12 Expedited Data (EX) SPDU A.8.13 Typed Data (TD) SPDU A.8.14 Capability Data (CD) SPDU . A.8.15 Capability Data Ack (CDA) SPDU A.8
22、.2 A.8.3 Page 12 12 12 12 12 13 13 13 13 13 13 13 14 14 14 14 14 14 14 15 15 15 15 15 15 16 16 16 17 18 18 18 18 19 19 19 20 20 20 21 21 21 22 22 22 23 23 23 23 23 24 24 24 ii ITU-T Rec . X.245 (1995 E) A.8.16 A.8.17 A.8.18 A.8.19 A.8.20 A.8.21 A.8.22 A.8.23 A.8.24 A.8.25 A.8.26 A.8.27 A.8.28 A.8.29
23、 A.8.30 A.8.31 A.8.32 A.8.33 A.8.34 A.8.35 A.8.36 ITU-T RECMN*X.245 95 48b259L Ob13063 LTO Give Tokens (GT) SPDU Minor Sync Point (MIP) SPDU Minor Sync Ack (MIA) SPDU . Major Sync Point (MAP) SPDU . Major Sync Ack (MAA) SPDU Resynchronize (RS) SPDU . Resynchronize Ack (RA) SPDU . Prepare (PR) SPDU .
24、 Exception Report (ER) SPDU . Exception Data (ED) SPDU Give Tokens Confirm (GTC) SPDU . Give Tokens Ack (GTA) SPDU . Activity Start (AS) SPDU . A.8.30.1 Linking Information A.8.30.2 Single Items Activity Interrupt Ack (AIA) SPDU . Activity Discard Ack (ADA) SPDU . Activity End (AE) SPDU Please Token
25、s (PT) SPDU Activity Resume (AR) SPDU . Activity Interrupt (A) SPDU . Activity Discard (AD) SPDU . Activity End Ack (AEA) SPDU . Annex B . List of conditional statements . Annex C - List of mnemonics used in the conditional and optional statements . Page 24 25 25 25 26 26 26 27 27 27 27 28 28 28 28
26、28 29 29 29 29 30 30 30 32 36 iii ITU-T Rec . X.245 (1995 E) ITU-T RECMN*X.245 95 4Bb2591 Ob130b4 037 m Summary This Recommendation I International Standard provides the Protocol Implementation Conformance Statement (PICS) proforma for the IS0 connection-oriented Session protocol which is specified
27、in Recommendation X.225. The PICS proforma represents, in tabular form, the mandatory and optional elements of the connection-oriented Session protocol. The PICS proforma is used to indicate the features and choices of a particular implementation of the connection-oriented Session protocol. Introduc
28、tion This Recommendation I International Standard is one of a set of Recommendations I 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
29、 for Open Systems Interconnection (see IT-T Rec. X.200 I ISOLEC 7498-1). The 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
30、 agreement outside the interconnection standards, 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.225 I ISO/IEC 8327- 1 specifies the Connection-Or
31、iented Session Protocol. 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 I Internati
32、onal Standard includes the PICS proforma for the Connection-Oriented Session Protocol as defined in ITU-T Rec. X.225 I ISO/IEC 8327-1. iv ITU-T Rec. X.245 (1995 E) ITU-T RECMN+X.245 95 m 4862591 Ob130b5 Ti3 ISO/IEC 8327-2 : 1996 (E) INTERNATIONAL STANDARD ITU-T RECOMMENDATION INFORMATION TECHNOLOGY
33、- OPEN SYSTEMS INTERCONNECTION - CONNECTION-ORIENTED SESSION PROTOCOL: PROTOCOL IMPLEMENTATION CONFORMANCE STATEMENT (PICS) PROFORMA 1 Scope This Recommendation I International Standard provides the Protocol Implementation Conformance Statement (PICS) proforma for the connection-oriented Session pro
34、tocol specification IT-T Rec. X.225 I ISO/IEC 8327-1. This PICS proforma is in compliance with the relevant requirements, and in accordance with the relevant guidance for a PICS proforma, given in IT-T Rec. X.296 I ISO/IEC 9646-7. Detail of the use of this proforma is provided in this Recommendation
35、 I International Standard. The supplier of an implementation which is claimed to conform to ITU-T Rec. X.225 I ISOAEC 8327-1 is required to complete a copy of the PICS proforma provided in Annex A, and is required to provide the information necessary to uniquely identify both the supplier and the im
36、plementation. 2 Normative references The following Recommendations and International Standards contain provisions which, through reference in this text, constitute provisions of this Recommendation I International Standard. At the time of publication, the editions indicated were valid. All Recommend
37、ations and Standards are subject to revision, and the parties to agreement based on this Recommendation I Intemational Standard are encouraged to investigate the possibility of applying the most recent edition of the Recommendations and Standards indicated below. Members of IEC and IS0 maintain regi
38、sters of currently valid Intemational Standards. The Telecommunications Standardization Bureau of the ITU maintains a list of currently valid ITU-T Recommendations. 2.1 Identical Recommendations I International Standards - IT-T Recommendation X.200 (1994) I ISO/IEC 7498-1:1994, Infomtion technology
39、- Open Systems Interconnection - Basic Reference Model: The Basic Model. - IT-T Recommendation X.214 (1993) I ISO/IEC 8072:1994, Information technology - Open Systems Interconnection - Transport service definition. ITU-T Recommendation X.215 (1995) I ISOAEC 8326:1996, Infomtion technology - Open Sys
40、tems Interconnection - Session service definition. - - IT-T Recommendation X.225 (1995) I ISO/IEC 8327-1:1996, Information technology - Open Systems Interconnection - Connection-oriented Session protocol - Protocol specification. 2.2 Paired Recommendations I International Standards equivalent in tec
41、hnical content - IT-T Recommendation X.290 (1999, OS1 conformance testing methodology and framework for protocol Recommendations for ITU-T applications - General concepts. ISOfIEC 9646-1 1994, Information technology - Open Systems Interconnection - Conformance testing methodology and framework - Par
42、t I: General concepts. ITU-T Rec. X.245 (1995 E) 1 ITU-T RECMNUX-245 95 m 4862591 063306b 90T - ISOAEC 8327-2 : 1996 (E) - ITU-T Recommendation X.296 (1995), OS1 conformance testing methodoIogy and framework for protocol Recommendations for TU-T applications - Implementation conformance statements.
43、ISO/IEC 9646-7: 1995, information technology - 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
44、defined in ITU-T Rec. X.225 I ISO/IEC 8327- 1. The following terms defined in ITU-T Rec. X.290 I ISOAEC 9646-1: a) Protocol Implementation Conformance Statement (PICS); b) PICS proforma. 3.3 Additional terms: - Requestor: the SPM that initiates a particular action; - Acceptor: the SPM that accepts a
45、 particular action. 4 Abbreviations 4.1 Abbreviations are given in ITU-T Rec. X.225 I ISOLEC 8327-1 and in clause 8. 4.2 This Recommendation I International Standard makes use of the following abbreviation given in IT-T Rec. X.290 I ISOAEC 9646- 1 : - PICS. For the purposes of this Recommendation I
46、International Standard, the following abbreviations also apply: StS Status column Spt Support column Sdr Sender Rcv Receiver 4.3 5 Conformance A conforming PICS shall be technically equivalent to the ITU I ISOAEC published PICS proforma and shall preserve the numbering and ordering of the items in t
47、he ITU I ISOAEC PICS proforma. A PICS which conforms to this Recommendation I International Standard shall: a) b) c) describe an implementation which conforms to IT-T Rec. X.225 I ISO/IEC 8327-1; be a conforming PICS proforma, which has been completed in accordance with the instructions for completi
48、on given in A.2; include the information necessary to uniquely identify both the supplier and the implementation. 2 ITU-T Rec. X.245 (1995 E) Annex A Identification of corrigenda applied to this PICS proforma Protocol Implementation Conformance Statement (PICS) Proforma for the Connection-Oriented S
49、ession Protocoll) (This annex forms an integral part of this Recommendation I International Standard) ITU-T Ra. X.245 (1995) I ISOfiEC 8327-2:1996 Corr: Corr: corr: A.l The supplier of the PICS proforma shall identify any corrigenda (Le. Technical Comgenda or equivalent) to the published proforma that 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 the table below. Identification of PICS proforma corrigenda A.2 Instructi
