ITU-T X 638-1996 Minimal OSI Facilities to Support Basic Communications Applications - Series X Data Networks and Open System Communication OSI Networking and System Aspects - Effi.pdf
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1、STD*ITU-T RECMN X*b38-ENGL L77b W 4Bb259L Ob31458 Li87 INTERNATIONAL TELECOMMUNICATION UN ION ITU=T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU X.638 (I 0/96) SERIES X: DATA NETWORKS AND OPEN SYSTEM COM M U N I CATI ON OS1 networking and system aspects - Efficiency Minimal OS1 facilities to supp
2、ort basic communications applications ITU-T Recommendation X.638 (Previously CCITT Recommendation) STD*ITU-T RECMN X=bIA-ENGL L97b 48b257L Ob33457 335 ITU-T X-SERIES RECOMMENDATIONS DATA NETWORKS AND OPEN SYSTEM COMMUNICATION PUBLIC DATA NETWORKS Services and facilities Interfaces Transmission, sign
3、alling and switching Network aspects Maintenance Administrative arrangements Model and notation Service definitions Connection-mode protocol specifications Connectionless-mode protocol specifications PICS proformas 1 Protocol Identification Security Protocols OPEN SYSTEM INTERCONNECTION Layer Manage
4、d Objects Conformance testing General Satellite data transmission systems MESSAGE HANDLING SYSTEMS DIRECTORY OS1 NETWORKING AND SYSTEM ASPECTS INTERWORKING BETWEEN NETWORKS X.1-X.199 x.1-x. 19 X.20-X.49 X.50-X.89 X.90-X.149 X.150-X. 179 X.180-X.199 X.200-X.299 X.200-X.209 X.2 IO-X.219 X.220-X.229 X.
5、230-X.239 X.240-X.259 X.260-X.269 X.270-X.279 X.280-X.289 X.290-X.299 X.300-X.399 X.300-X.349 x.350-x.399 X.400-X.499 x.500-x.599 X.600-X.699 Networking X.600-X.629 I Naming, Addressing and Registration X.650-X.679 Abstract Syntax Notation One (ASN.l) Systems Management framework and architecture Ma
6、nagement Communication Service and Protocol Structure of Management Information Management functions OS1 MANAGEMENT SECURTTY OS1 APPLICATIONS Commitment, Concurrency and Recovery Transaction processing Remote operations OPEN DISTRIBUTED PROCESSING X.680-X.699 X.700-X.799 x.700-x.709 X.710-X.719 X.72
7、0-X.729 x.730-x.799 X.800-X. 849 X.850-X.899 X.850-X.859 X.860-X.879 X.880-X.899 X.900-X.999 I For further detaiIs, please refer to ITU-T List of Recommendations. - STD.ITU-T RECMN X.b38-ENGL Lb = Li8b25L Ob314b0 037 m FOREWORD The IT-T (Telecommunication Standardization Sector) is a permanent organ
8、 of the International Telecommunication Union (IT). The ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommen- dations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC
9、), which meets every four years, establishes the topics for study by the ITU-T Study Groups which, in their turn, produce Recommendations on these topics. The approval of Recommendations by the Members of the ITU-T is covered by the procedure laid down in WTSC Resolution No. 1 (Helsinki, March 1-12,
10、 1993). IT-T Recommendation X.63 8 was prepared by IT-T Study Group 7 (1 993- 1996) and was approved under the WTSC Resolution No. 1 procedure on the 5th of October 1996. NOTE In this Recommendation, the expression “Administration” is used for conciseness to indicate both a telecommunication adminis
11、tration and a recognized operating agency. O ITU 1997 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 fiom the ITU. Recommendation X.638 (10/96) I
12、 STD-ITU-T RECMN X-bIA-ENGL L77b LiBb2591 Ob3L4bL T73 1 2 3 4 5 6 7 10 11 CONTENTS Page Scope 1 Normative References 1 2.1 Identical Recommendations I International Standards 1 2.2 Paired Recommendations I International Standards equivalent in technical content 2 2.3 Additional references 2 Definiti
13、ons. . 2 3.1 Reference model definitions . 2 3.2 Service conventions definitions 3 3.3 Presentation definitions 3 3.4 Session definitions 3 3.5 Application Layer Structure definitions . 3 3.6 ACSE service definitions 4 3.7 Taxonomy of profile defiriitions . 4 3.8 Definitions of this Recommendation 4
14、 . Abbreviations 5 Introduction 6 5.1 Minimal OS1 upper layer facilities . 6 5.2 Use of the mOSI stack specification . 6 5.3 Users of the mOSI stack specification 8 5.4 OS1 upper layer efficiency 8 The mOSI model 6,1 Common elements 6.2 Applications 6.3 Types of basic communications applications Det
15、ails of the mOSI concept 7.1 Kernel and options 7.2 Normal data transfer . 7.3 Association release . 7.4 Relationship to base standards 7.5 Transport-provid er 8 8 10 10 11 11 11 11 12 12 Application of this Recommendation . 12 8.1 Types of user 12 8.2 Conventions 13 Compliance and conformance 16 9.
16、1 16 9.2 OS1 upper layer stack implementation 16 9.3 Facilities, roles and options 17 Profile or specification of a basic communications application Implementation considerations . 17 10.1 Layering for mOSI implementations 17 . 10.2 PDU generation for mOSI implementations 18 10.3 Parsing incoming pr
17、otocol for mOSI 18 10.4 Interfaces for mOSI implementations . 18 Recommendation X638 (10196) - STD-ITU-T RECMN XebI-ENGL L99b Vb259L b3LVb2 90T U Annex A . A . 1 A.2 A.3 A.4 AS A.6 A.7 mOS1 requirements for ACSE facilities . Supported roles . PICS proforma, A.61 Protocol mechanisms . PICS proforma,
18、A.71 . Functional units . PICS proforma, A.81 Supported APDUs . PICS proforma, A.91 Supported parameter forms - PICS proforma, A.111 Global statement of conformance . PICS proforma. AS Supporting APDU parameters - PICS proforma, A . 1 O . Annex B . mOSI requirements for Presentation Layer facilities
19、 . B.l B.2 B.3 B.4 B.5 Global statement of conformance . PICS proforma, AS Protocol mechanisms and functional units . PICS proforma. A.61 . Supported PPDU parameters - PICS proforma, A.81 . Support of syntaxes - PICS proforma, A.91 Annex C - mOSI requirements for Session Layer facilities . ITU-T Rec
20、 . X.225 I ISO/IEC 8327-1 protocol versions - PICS proforma, A.4.21 . Global statement of conformance - PICS proforma, AS Supported functional units and protocol mechanisms - PICS proforma, A.61 Elements ofprocedures related to the PICS proforma - PICS proforma, A.71 . Supported SPDU parameters - PI
21、CS proforma, A.81 . Annex D - Requirements compliance statement proforma D.l Requirements questionnaire D.2 Use of Tables D.l and D.2 by a referencing specification . D.3 Completing a PRL based on Tables D.l and D.2 . D.4 Annex E - Implementation conformance statement proforma . E. 1 Implementation
22、questionnaire . E.2 Use of Tables E.l and E.2 by a referencing implementation E.3 Annex F - Minimal OS1 object identifiers . Default abstract syntax for minimal OS1 Default transfer syntax for minimal OS1 Default application context for minimal OS1 Elements of procedure related to the PICS proforma
23、- PICS proforma, A.71 C.l C.2 C.3 C.4 C.5 A referencing specifications upper layer PRL . Completing a PICS based on Tables E.1 and E.2 . F.l F.2 F.3 Page 19 20 20 20 21 21 22 24 25 25 25 26 28 31 32 33 33 33 34 36 41 41 41 42 44 45 45 45 48 49 49 49 49 Recommendation X.638 (10/94) iii SUMMARY This R
24、ecommendation provides the concepts, definitions and profile of the minimal upper layer facilities necessary to support basic connection-oriented communications applications. These facilities consist of a subset of the facilities defined in the ACSE, and the Presentation and Session service definiti
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