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1、BRITISH STANDARD BS ISO/IEC 14699:1997 Information technology Open Systems Interconnection Transport Fast Byte Protocol ICS 35.100.40 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 22 09:59:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC 14699:1997 This British Standard, having been pr
2、epared under the direction of the DISC Board, was published under the authority of the Standards Board and comes into effect on 15 December 1997 BSI 05-1999 ISBN 0 580 28851 X National foreword This British Standard reproduces verbatim ISO/IEC 14699:1997 and implements it as the UK national standard
3、. The UK participation in its preparation was entrusted to Technical Committee IST/6, Data communications, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change,
4、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 can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the o
5、ld number. For instance, IEC 27-1 has 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 identifiers from both systems. Cross-references The British Standards which implement international or European publicati
6、ons 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” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisio
7、ns 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 obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the ISO/IEC title p
8、age, pages ii to iv, pages 1 to 22 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffiel
9、dun sheffieldun, na, Wed Nov 22 09:59:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC 14699:1997 BSI 05-1999i Contents Page National forewordInside front cover Forewordiv Text of ISO/IEC 146991 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 22 09:59:34 GMT+00:00 2006, Uncontrolled Copy
10、, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 22 09:59:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 22 09:59:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC 14699:1997 ii BSI 05-1999 Contents Page Forewordiv Intro
11、duction1 1Scope2 2Normative references2 2.1Identical Recommendations|International Standards2 2.2Paired Recommendations|International Standards equivalent in technical contents3 3Definitions3 4Symbols and abbreviations4 4.1Data units5 4.2TPDU types5 4.3TPDU fields5 4.4Miscellaneous5 5Overview of the
12、 Transport Fast Byte Protocol5 5.1Service provided by the Transport Layer5 5.2Service assumed from the Network6 5.3Functions of the Transport Layer7 5.4Modes of operation8 5.5Model of the Transport Layer8 6Transport Fast Byte Protocol specification9 6.1Transport Protocol Data Unit (TPDU) transfer9 6
13、.2Connection establishment10 6.3Connection refusal11 6.4Normal release12 6.5Error indication12 6.6Abnormal release13 6.7Data transfer13 6.8Segmenting and reassembling13 6.9Expedited data transfer14 6.10 Invalid TPDU14 7FB-TPDU structure and encoding14 7.1Header part15 7.2Control part16 7.3Data part1
14、6 8Conformance17 Annex A Protocol Implementation Conformance Statement (PICS) proforma18 A.1General18 A.2Identification18 A.3Indices used in this annex19 A.4Modes implemented19 A.5Initiator/responder capability to establish connection19 A.6Supported functions19 A.7Supported TPDUs20 A.8Supported FB-T
15、PDU fields and parameters20 A.9Negotiation and selection20 A.10 Error handling21 Annex B Fallback procedures for systems implementing ITU-T Rec. X.224|ISO/IEC 8073 in addition to the Transport Fast Byte Protocol21 B.1Scope21 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 22 09:59:34 GMT+00:00 2
16、006, Uncontrolled Copy, (c) BSI BS ISO/IEC 14699:1997 BSI 05-1999iii Page B.2Fallback procedures21 Figure Intro. 1 Relationship between the Transport Fast Byte Protocol and adjacent services2 Figure 1 Model of the transport layer9 Table 1 Transport service primitives6 Table 2 Connection-Oriented Net
17、work service primitives6 Descriptors: Data processing, information interchange, telecommunications, network interconnection, open systems interconnection, transport layer, protocols. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 22 09:59:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC
18、 14699:1997 iv BSI 05-1999 Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of Internation
19、al Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with
20、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 adopted by the joint technical committee are circulated to national bodies for voting. Publication as an Internation
21、al Standard requires approval by at least 75 % of the national bodies casting a vote. International Standard ISO/IEC 14699 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 6, Telecommunications and information exchange between systems, in collaboration
22、 with ITU-T. The identical text is published as ITU-T Recommendation X.634. Annex A forms an integral part of this International Standard. Annex B is for information only. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 22 09:59:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC 14699:1997
23、 BSI 05-19991 Introduction This Recommendation|International Standard is one of a set of Recommendations|International Standards produced to facilitate the interconnection of information processing systems. This set of Recommendations|International Standards covers the services and protocols require
24、d to achieve such interconnection. The Transport Fast Byte Protocol Recommendation|International Standard is positioned with respect to other related Recommendations|International Standards by the layers defined in the Reference Model for Open Systems Interconnection (see ITU-T Rec. X.200|ISO/IEC 74
25、98-1). It is most closely related to, and lies within the field of application of, the Transport Service definition (see ITU-T Rec. X.214|ISO/IEC 8072). It also uses and makes reference to the Network Service definition (see ITU-T Rec. X.213|ISO/IEC 8348), whose provisions it assumes in order to acc
26、omplish Transport Fast Bytes aims. The interrelationship of these Recommendations|International Standards is illustrated in Figure Intro. 1 This Recommendation|International Standard specifies a common encoding and protocol procedures. It is intended that the Transport Fast Byte Protocol should be s
27、imple and cater for a specific range of Network Service qualities possible. The protocol is structured to give rise to two modes of operation which are designed to minimize possible incompatibilities and implementation costs. The modes are selectable with respect to the Transport and Network service
28、s in providing the required Quality of Service for the interconnection of two session entities (one mode ignores network signalled errors, the other mode does not). This Recommendation|International Standard does not define mechanisms that can be used to optimize network tariffs or enhance the quali
29、ty of Network Service. The primary aim of this Recommendation|International Standard is to provide a set of rules for communication expressed in terms of the procedures to be carded out by peer entities at the time of communication. These rules for communication are intended to provide a sound basis
30、 for development in order to serve a variety of purposes: a) as a guide for implementors and designers; b) for use in the testing and procurement of equipment; c) as part of an agreement for the admittance of systems into the open systems environment; d) as a refinement of the understanding of OSI.
31、As it is expected that the initial users of this Recommendation|International Standard will be designers and implementors of equipment, this Recommendation|International Standard contains, in notes or in annexes, guidance on the implementation of the procedures defined herein. This Recommendation|In
32、ternational Standard contains a clause on conformance of equipment claiming to implement the procedures in this Recommendation|International Standard (see clause 8). To evaluate conformance of a particular implementation, it is necessary to have a statement of which capabilities and options have bee
33、n implemented for a given OSI protocol. Such a statement is called a Protocol Implementation Conformance Statement (PICS). A PICS proforma is provided in Annex A. Attention is drawn to the fact that this Recommendation|International Standard does not contain any tests to demonstrate this conformance
34、. It should be noted that it may not be possible with current technology to verify that an implementation will operate the protocol defined in this Recommendation|International Standard correctly under all circumstances. It is possible by means of testing to establish confidence that an implementati
35、on correctly operates the protocol in a representative sample of circumstances. It is, however, intended that this Recommendation|International Standard can be used in circumstances where two implementations fail to communicate in order to determine whether one or both have failed to operate the pro
36、tocol correctly. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 22 09:59:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC 14699:1997 2 BSI 05-1999 1 Scope This Recommendation|International Standard specifies: a) Two modes of procedures when operating over the connection oriented network
37、 service: 1) mode 0: acts on network signalled errors; 2) mode 4: ignores network signalled errors, for the connection oriented transfer of data and control information from one transport entity to a peer transport entity. b) The means of selecting the mode of procedures to be used by the transport
38、entities. c) The structure and encoding of the TPDUs used for the transfer of data and control information. The procedures are defined in terms of: a) the interactions between peer transport entities through the exchange of TPDUs; b) the interactions between a transport entity and the transport serv
39、ice user in the same system through the exchange of transport service primitives; c) the interactions between a transport entity and the network service provider through the exchange of network service primitives. These procedures are applicable to instances of communication between systems which su
40、pport the Transport Layer of the OSI Reference Model and wish to interconnect in the open systems environment using the Transport Fast Byte Protocol. This Recommendation|International Standard specifies, in clause 8, conformance requirements for systems implementing these procedures and provides the
41、 PICS proforma in compliance with the relevant requirements, and in accordance with the relevant guidance, given in ITU-T Rec. X.296 and ISO/IEC 9646-7. It does not contain tests which can be used to demonstrate this conformance. 2 Normative references The following Recommendations and International
42、 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 International Standards are subject to revision, and parties to agreements
43、based on this Recommendation|International Standard are encouraged to investigate the possibility of applying the most recent edition of the Recommendations and International Standards listed below. Members of IEC and ISO maintain registers of currently valid International Standards. The Telecommuni
44、cation 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 Basic Model.
45、 ITU-T Recommendation X.210 (1993)|ISO/IEC 10731:1994, Information technology Open Systems Interconnection Basic Reference Model: Conventions for the definition of OSI services. Figure Intro. 1 Relationship between the Transport Fast Byte Protocol and adjacent services Licensed Copy: sheffieldun she
46、ffieldun, na, Wed Nov 22 09:59:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC 14699:1997 BSI 05-19993 ITU-T Recommendation X.213 (1995)|ISO/IEC 8348:1996, Information technology Open Systems Interconnection Network service definition. ITU-T Recommendation X.214 (1995)|ISO/IEC 8072:1996, In
47、formation technology Open Systems Interconnection Transport service definition. ITU-T Recommendation X.224 (1995)|ISO/IEC 8073:1997, Information technology Open Systems Interconnection Protocol for providing the OSI connection-mode transport service. ITU-T Recommendation X.263 (1995)|ISO/IEC TR 9577
48、:1996, Information technology Protocol identification in the Network layer. 2.2 Paired Recommendations|International Standards equivalent in technical contents ITU-T Recommendation X.290 (1995), OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications Gen
49、eral Concepts. 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 protocol 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. 3 Defini
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