GB/T 12500-2008 English PDFGB/T 12500: Historical versions
Basic dataStandard ID: GB/T 12500-2008 (GB/T12500-2008)Description (Translated English): Information technology -- Open systems interconnection -- Protocol for providing the connection-mode transport service Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: L79 Classification of International Standard: 35.100.40 Word Count Estimation: 146,182 Date of Issue: 2008-07-16 Date of Implementation: 2008-12-01 Older Standard (superseded by this standard): GB/T 12500-1990 Quoted Standard: GB/T 12453-2008; GB/T 15126-2008 Adopted Standard: ISOIEC 8073-1997, IDT Regulation (derived from): Announcement of Newly Approved National Standards No. 12 of 2008 (No. 125 overall) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies: a) service running on the network connection on five rules: a) Class 0: Simple Class, 2) Class 1: basic error recovery class, 3) Category 2: Multiplexing Class, 4) Category 3: error recovery and reuse of classes, 504 class: error detection and recovery class. The five categories of procedures for transportation from one entity to the peer transport entity sending the data and control connections required information. b) Run in a connectionless mode network service class on a point of order, c) negotiate transport protocols used by the entity class methods, d) is used to transmit data and control information transport protocol data unit structure and coding. The procedures defined from the following aspects: ��) the peer transport entities through the exchange of transport protocol data unit interaction, ��) in the same system, transport between entities and users of transport services through the exchange of transport service primitives interaction, ��) transport entity and a network service provider through the switched network between the interactive service primitives. These procedures are set forth in the text of this standard, the state table in Appendix A of this standard are supplemented. These procedures apply to support the OSI reference model transport layer and hope in an open system environment of interconnected systems for communication between instances. Chapter 14 provides a systematic procedure to achieve the consistency of these requirements and provides the PICS proforma related to compliance with these requirements, and ISO/IEC 9646-2 gives guidance related to the same. It does not contain this consistency can be used to validate tests. GB/T 12500-2008: Information technology -- Open systems interconnection -- Protocol for providing the connection-mode transport service---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Information technology. Open systems interconnection. Protocol for providing the connection-mode transport service ICS 35.100.40 L79 National Standards of People's Republic of China GB/T 12500-2008/ISO /IEC 8073.1997 Replacing GB/T 12500-1990 Information technology - OSI Providing connectivity transport services agreement (ISO /IEC 8073.1997, IDT) Posted 2008-07-16 2008-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Table of ContentsIntroduction Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 International standards equivalent to 1 2.1 2.2 Technical content equal pairs of standard 1 3 Terms and definitions 2 4 Abbreviations 4 4.1 Data unit 4 Type 4.2 transport protocol data unit 4 4.3 TPDU field 5 4.4 times and related variables 5 4.5 Other 5 5 Overview of transport protocols 6 Services provided by the transport layer 6 5.1 5.2 assumes that network layer service 6 5.3 Transport layer functions 7 5.4 running on CNOS classes and options 8 5.5 running on a class 4 transport protocol in CLNS feature 10 5.6 Transport layer model 10 6 elements of order 10 6.1 Use of network services 11 6.2 transport protocol data units transmitted (TPDU) 12 Hehe 6.3 staging section 12 Stitching and 6.4 division 12 6.5 connection establishment 13 6.6 connection reject 18 19 6.7 General release 6.8 CONS operational errors on the release of 21 6.9 TPDU associated transport connection 21 6.10 Data TPDU number 24 Expedited data transfer 24 6.11 6.12 Failure to redistribute run on after 25 CONS 6.13 TPDU and confirm reservations 26 6.14 resynchronization 28 6.15 running on CONS multiplexing and demultiplexing 30 6.16 Explicit flow control 30 6.17 30 checksum GB/T 12500-2008/ISO /IEC 8073.1997 6.18 Freeze reference symbol 31 6.19 Retransmission 32 Reorder 32 6.20 6.21 Inactive control 32 6.22 protocol error handling 33 6.23 running on a split and merge CONS 34 7 protocol class 34 80 35 Class Specification --- Simple 8.1 features like 35 0 Practice Class 0 35 8.2 Class 91 specification --- basic error recovery class 36 9.1 Class 1 features 36 Class 1 procedure 36 9.2 Class 102 specification --- multiplexing class 37 2 10.1 features like 37 Class 2 procedures 37 10.2 113 Class Specification --- error recovery and multiplexing class 38 11.1 Class 3 features 38 11.2 Class 3 procedures 39 124 Class Specification --- error detection and recovery class 40 12.1 Class 4 features 40 Class 4 40 12.2 procedures 13 TPDU structure and coding 50 13.1 Effectiveness 50 13.2 Structure 51 13.3 Connection Request (CR) TPDU 53 13.4 connection confirm (CC) TPDU 57 13.5 disconnect request (DR) TPDU 57 13.6 disconnect confirm (DC) TPDU 59 13.7 Data (DT) TPDU 59 13.8 Accelerated Data (ED) TPDU 60 13.9 Data Verification AK-TPDU 61 13.10 accelerate data validation (EA) TPDU 62 13.11 reject (RJ) TPDU 63 13.12 TPDU error (ER) TPDU 64 Consistency 14 64 Appendix A (normative) state table 66 Appendix B (normative) Network Connection Management Agreement 91 Appendix C (Normative Appendix) PICS proforma 109 Annex D (normative) checksum algorithm 131 Appendix E (normative) Class 4 run on connection mode and connectionless-mode network service status table 132 GB/T 12500-2008/ISO /IEC 8073.1997ForewordThis standard is equivalent to using ISO /IEC 8073.1997 "Information technology - OSI provides connectivity transport services agreement" And its amendment ISO /IEC 8073.1997/Amd1.1998, this standard of international standards were necessary editorial changes. Amendment ISO /IEC 8073.1997/Amd1.1998 standard text table 6,12.2.3.2,14.2,14.3,14.4, C. 6.2 C. 9.3, C. 9.4, C. 9.5 and C. Chapter 10 has been modified, the corresponding provisions on the right of use "|" mark. GB/T 12500-1990 reference to ISO 8073. 1986 and the development of this standard is GB/T 12500-1990 of revision. I State has not established international standards 2nd Edition and 3rd Edition corresponding national standards. This standard and GB/T 12500-1990 compared to the main changes are as follows. --- Change standard entitled "Information Technology OSI protocol that provides connectivity transport services"; --- This standard does not divide the contents of articles, the previous version of the standard is divided into three; --- The standard text added connectionless mode network service technology content; --- Appendix A of this standard increases the content connectionless mode network service; --- This standard adds Appendix B Network Connection Management content of the agreement; --- This standard adds content Appendix CPICS proforma; --- Appendix D of this standard checksum algorithm using the original criteria in Appendix B; --- This standard adds content to run 4 Appendix E classes in connection mode and connectionless-mode network service state table. Appendix A, Appendix B, Appendix C, Appendix D and Appendix E is a normative appendix. This standard by the National Information Technology Standardization Technical Committee and centralized. This standard was drafted. China Electronics Standardization Institute. The main drafters of this standard. Guo Nan Xu Dongmei, Zhang Cui, Zhang Hui, Zhuolan. This standard replaces the standards previously issued as follows. --- GB/T 12500-1990. GB/T 12500-2008/ISO /IEC 8073.1997IntroductionThis standard is intended to facilitate the interconnection of information processing systems and one of a group of standard-setting. This group includes standard interconnect to accomplish this Seeking services and protocols. Layers and other relevant standards in accordance with the Open Systems Interconnection Basic Reference Model (GB/T 9387.1) is defined to determine the transport protocol standards s position. This standard and transport service standards (GB/T 12453) most closely and impose within its scope of application. It also uses and reference Test Web services standards (in front of the national reference standards GB/T 15126), in order to achieve the objectives of transport protocol. These standards The relationship between the Figure 1. Fig.1 Transport Agreement between the adjacent service This standard specifies the encoding and all kinds of public transport protocol procedures for a variety of different quality of network services. This standard is intended to strive to make the transport protocol simple and universal enough to adapt to all possible network quality of service, but do not limit future expansion Charge. This Agreement will be divided into several categories protocol is to minimize incompatibility and reduce costs to achieve. According to the service quality of transport services and network services to provide two sessions interconnected entities required to select the protocol type (in order to improve service Quality of service for each type of agreement offers different feature sets). This standard defines the mechanism used to optimize network charges and improve the quality of the following services. a) different throughput; b) a different error rate; c) data integrity requirements; d) reliability requirements. This standard neither requires a specific implementation uses all of these mechanisms, nor the provisions obtained by the measurement methods and the quality of service in the service After downgrading the quality criteria to decide when to release the transport connection. The main objective of this standard is to provide a set of communication rules, a number of provisions which set of communication rules when communicating peer entities executed Cheng expressed. These communication rules are designed to provide a solid foundation for the development of these various uses, namely. a) as a guide to designers and implementers; b) when testing and procurement for equipment use; c) As part of the agreement permit system access open systems environment; d) to deepen the understanding of OSI. Due to expect of this standard will be the first user equipment designers and implementers, so that it contains in its realization marked notes or appendices Registration various procedures guidance. It should be noted that, due to the large number of valid protocol sequences, so use the current technology to verify a concrete realization of energy in any environment Proper implementation of the standards required by the agreement is not possible. However, through testing, it is believed that a positive implementation in a typical environment Ensure the implementation of this agreement. However, when two concrete realization can not communicate, this is the standard used to determine which one or both parties have not executed correctly Line Protocol. GB/T 12500-2008/ISO /IEC 8073.1997 There is a standard in this Conformance Statement about the implementation of this standard procedures for each device. In order to verify the consistency of a particular implementation, there are Necessary capabilities and options given OSI protocol implementations declared. Such a statement is called a Protocol Implementation Conformance Statement (PICS). Attached Appendix C provides the PICS proforma. Pay attention to the fact that the standard does not contain any proof of the consistency of the test. This standard available variants and options for a variety of network quality of service in the provision of transport services for a wide range of applications is essential of. Thus, to achieve a specific minimum comply with the agreement will be unsuitable for use in all possible environments. Thus, to provide or require A provision of the intended use of the option or predetermined or to limit all references to this standard is important. GB/T 12500-2008/ISO /IEC 8073.1997 Information technology - OSI Providing connectivity transport services agreement1 ScopeThis standard specifies. a) run on five network service connection procedure. 1) Class 0. Simple; 2) Class 1. basic error recovery class; 3) Class 2. Multiplexing Class; 4) Class 3. error recovery and multiplexing class; 5) Class 4. error detection and recovery class. This procedure is for the five transport from one entity to the peer transport entity transferring connection data and control information provided. b) running on a connectionless mode network service for a class of procedures (Category 4); c) negotiation method of transport protocol used by the entity class; d) for transmitting data and control information of transport protocol data unit structure and coding. Each protocol is defined from the following aspects. Ⅰ) the interaction between peer transport entities through the exchange of transport protocol data units; Ⅱ) in the same system, transportation between the entity and the transport service user to interact through the exchange of transport service primitives conducted; The interaction between transport entities and network service provider through the exchange of network service primitives of ⅲ). These procedures are in the body of this standard specified in Appendix A of the table in a state standard is complemented. These procedures apply to support the OSI reference model transport layer between hope and in an open system environment are interconnected communication Instance. Chapter 14 specifies conformance requirements for system implementation of these procedures, and provides the PICS proforma to meet these requirements related to its Guidance is consistent with ISO /IEC 9646-2 given. It does not contain this consistency can be used to verify the test.2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. 2.1 equivalent international standards GB/T 12453-2008 Information technology - Open Systems Interconnection - Transport service definition (ISO /IEC 8072.1996, IDT) GB/T 15126-2008 Information technology - Open Systems Interconnection - Network service definition (ISO /IEC 8348.1997, IDT) Pair standard technical content equal to 2.2 --- CCITT Recommendation X. OSI Reference Model 200 (1988) CCITT applications GB/T 9387.1-1998 Information processing systems - Open Systems Interconnection - Basic Reference Model - Part 1. Basic Model (Idt ISO /IEC 7498-1.1994) --- CCITT Recommendation X. 650 (1992) named OSI Basic Reference Model and addressing GB/T 9387.3-1995 Information technology - Open Systems Interconnection - Basic Reference Model - Part 3. Naming and addressing (idt ISO /IEC 7498-3. 1989) GB/T 12500-2008/ISO /IEC 8073.1997 ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 12500-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 12500-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 6 ~ 10 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 12500-2008_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 12500-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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