35.100.20 数据链路层 标准查询与下载
共找到 232 条与 数据链路层 相关的标准，共 16 页
本标准定义一种方法，藉此法依照 CNS 12796 〔信息处理–数据通信系统中基本模态控制程序〕 所规定的基本模态控制程序运作之数据（数据）通信系统能在一种快速交谈方式下交换数据讯息。此处操作人员在终端设备的运作上充当一个重要角色。本标准延伸 CNS 12796 所定义的阶段
Basic Mode Control Procedures-Conversational Information Message Transfer
- ICS
- 35.100.20
- CCS
- 发布
- 1990-11-20
- 实施
- 1990-11-20
本标准延伸 CNS 12796 〔信息处理–数据通信系统中基本模态控制程序〕 及 CNS 12797 〔数据通信–基本模态控制程序–与码无关之信息转移〕 所定义之数字基本模态控制程序以允许下列点之增加：（1）复原程序（2）放弃及岔断程序（3）多重站之选择。符合 CNS 12796 之系统并无
Basic Mode Control Procedures-Complements
- ICS
- 35.100.20
- CCS
- 发布
- 1990-11-20
- 实施
- 1990-11-20
本标准适用于数据（数据）传输信道中信息交换所需之 CNS 5205 〔信息处理–信息交换用七数元码字符集〕 之实行方法，包含所传输讯息的格式和监督序列。本标准涵盖了现存数据（数据）传输系统及使用于数据（数据）处理系统中数据（数据）链组态的大部份。
Information Processing-Basic Mode Control Procedures for Data Communication Systems
- ICS
- 35.100.20
- CCS
- 发布
- 1990-10-24
- 实施
- 1990-10-24
HDLC multilink procedures, where a multiplicity of parallel data links at the data link layer are used to provide a variable bandwidth data link between network layer entities.
High-level data link control (HDLC) procedures. Specification for multilink procedures
- ICS
- 35.100.20
- CCS
- L78
- 发布
- 1990-05-31
- 实施
- 1990-05-31
Настоящий стандарт распространяется на уровень звена данных систем телеобработки данных и вычислительных сетей и определяет перечень и
Data communication. Data link service definition for open systems interconnection
- ICS
- 35.100.20
- CCS
- 发布
- 1990
- 实施
- 1991-07-01
The multilink procedures exists as a sublayer of the data link layer of the OSI basic reference model. Multilink procedures provide the means for scheduling a group of parallel data links. Data units are accepted from the network layer, delivered to single data links and after successful transmission, recordered and delivered to the network layer.
Data communication; multilink procedures; identical with ISO 7478:1987 (status as of 1989)
- ICS
- 35.100.20
- CCS
- L79
- 发布
- 1989-11
- 实施
Information processing systems — Data communication — High-level data link control procedures — General purpose XID frame information field content and format — Addendum 1
- ICS
- 35.100.20
- CCS
- 发布
- 1989-09-21
- 实施
本标准适用于依英文信息互换码中并行位，串行字符数据通讯用之字符结构与字元配类识别之规定。
Information Interchange-Character Structure and Character Parity Sense for Parallel-By-Bit Data Communication
- ICS
- 35.100.20
- CCS
- 发布
- 1989-07-15
- 实施
- 1989-07-15
Information processing systems — Data communication — Multilink procedures — Technical Corrigendum 1
- ICS
- 35.100.20
- CCS
- 发布
- 1989-03-01
- 实施
Настоящий стандарт распространяется на протокол уровня звена данных в архитектуре открытых систем сетевой телеобработки данных и устана
Information processing systems. Data link protocol. Method of synchronons bit oriented data transmission
- ICS
- 35.100.20
- CCS
- 发布
- 1989
- 实施
- 1990-01-01
Information processing systems. Data link protocol. Methods of synchronous character oriented data transmission
- ICS
- 35.100.20
- CCS
- 发布
- 1989
- 实施
- 1990-01-01
This National Standard of Canada is equivalent to International Standard ISo 7809-1984. 1 Scope and field of application This International Standard describes the HDLC unbalanced classes of procedures and the HDLC balanced class of procedures for synchronous data transmission. Balanced operation is intended for use in circumstances which require equal control at either end of the data link. Operational requirements are covered in accordance with the overall HDLC architecture. The procedures use the HDLc frame structure defined in ISO 3309 1) and the HDLC elements of procedures described in ISO 4335 2). For the unbalanced classes, the data link consists of a primary station plus one or more secondary stations and operates in either the normal response mode of the asynchronous response mode in a point-to-point or multipoint configuration. For the balanced class, the data link consists of two combined stations and operates in the asynchronous balanced mode in a point-to-point configuration. In each class, a basic repertoire of commands and responses is defined, but the capability of the data link may be modified by the use of optional functions. 1) ISO 3309, Data communication - High-level data link control procedures - Frame structure. 2) ISO 4335, Data communication - High-level data link control procedures - Consolidation of elements of procedures.
Information Processing Systems - Data Communication - High-Level Data Link Control Procedures - Consolidation of Classes of Procedures
- ICS
- 35.100.20
- CCS
- 发布
- 1988-12-01
- 实施
This National Standard of Canada is equivalent to International Standard ISo 7776-1986. 1. Scope and field of application This International Standard defines an application of the following HDLc Standards: ISO 3309, ISO 4335, ISO 7478, and ISO 7809. When there is difficulty in the interpretation of a reworded requirements from one of the other International Standards, the original requirement of ISO 3309, ISO 4335, ISO 7478 or ISO 7809 is definitive. It also defines the structure, elements and procedures for the operation of a DTE using the X.25 Level 2 LAPB protocol as specified in CCITT Recommendation X.25. 1) The procedure is applicable to data interchange between a DTE and a DCE, or between two DTEs. The procedures are defined for use on synchronous, duplex links. Clause 3 describes two frame structures: one for basic (modulo 8) operation and one for extended (modulo 128) operation. Basic (modulo 8) operation is the ISo balanced asynchronous class of procedure with optional functions 2 and 8 (BAC, 2, 8). Extended (modulo 128) operation is the ISO balanced asynchronous class of procedure with optional functions 2,8 and 10 (BAC, 2, 8, 10). For those DTE/DCE connections that support both basic (modulo 8) operation and extended (modulo 128) operation, the choice is made at subscription-time only. For those DTE/remote DTE connections that support both basic (modulo 8) operation and extended (modulo 128) operation, the choice is made by bilateral agreement. NOTE - The procedure herein described as basic (modulo 8) operation is the only one available in all public data networks. Clause 4 describes the elements of procedures. Some aspects are only operable for the basic (modulo 8) operation and some for the extended (modulo 128) operation. Clauses 5 and 6 describe the single link procedure (SLP) which is derived from the frame structure and the elements of procedures, and an optional multilink procedure (MLP), respectively. The SLP is used for data interchange over a single data link and the MLP is used for data interchange over a multiple of parallel SLPs. An MLP is required if the effects of individual SLP failures are not to disrupt the higher level operation. An MLP can also be used over a single SLP by prior bilateral agreement. For DTE/DCE connections the choice of an MLP operation or not is made at subscription-time only. For DTE/remote DTe connections, the choice is made by bilateral agreement. Where choices among alternative actions are indicated in the procedures, a recommended choice is usually indicated. Unless specifically stated otherwise, the choice of action does not affect interoperability with other implementations of this International Standard although efficiency of operation may be affected. Where such choices do affect interoperability, the procedures explicitly state that prior bilateral agreement on the choice of procedure with the remote end is needed. An attempt has been made to minimize such choices consistent with the need to satisfy a broad range of applications. A basic requirement for all implementations of this International Standard is that they be capable of responding, as specified, to any actions taken at the remote end that are permitted by this International Standard (except possibly for those procedures whose use involves prior bilateral agreement). 1) Future revisions of this International Standard will be made in accordance with revisions of CCITT Recommendation X.25. The present version is based on the 1984 CCITT Recommendation X.25.
Information Processing Systems - Data Communication - High-Level Data Link Control Procedures - Description of the X.25 LAPB-Compatible DTE Data Link Procedures
- ICS
- 35.100.20
- CCS
- 发布
- 1988-12-01
- 实施
This National Standard of Canada is equivalent to International Standard ISO 8471-1987. It is applicable to data stations employing HDLC balanced classes of procedures which provide the XID command/response capability.
Information Processing Systems - Data Communication - High-Level Data Link Control Balanced Classes of Procedures - Data-Link Layer Address Resolution/Negotiation in Switched Environments
- ICS
- 35.100.20
- CCS
- 发布
- 1988-12-01
- 实施
This National Standard of Canada is equivalent to International Standard ISo 4335-1987. 1 Scope and field of application This International Standard specifies elements of data link control procedures for synchronous, code-transparent data transmission using the HDLC frame structure specified in ISO 3309 and independent frame numbering in both directions. These HDLC elements of procedures are defined specifically in terms of the actions that occur on receipt of commands at a secondary station or a combined station. This International Standard is intended to cover a wide range of applications; for example one-way, two-way alternate or two-way simultaneous data communication between data stations which are usually buffered, including operations on different types of data circuits; for example multipoint/point-to-point, duplex/half-duplex, switched/non-switched, etc. The defined HDLC elements of procedures are to be considered as a common basis for establishing different types of control procedures. This International Standard does not define any single system and should not be regarded as a specification for a data communication system. Not all of the commands or responses are required for a particular system implementation.
Information Processing Systems - Data Communication - High-Level Data Link Control Elements of Procedures
- ICS
- 35.100.20
- CCS
- 发布
- 1988-12-01
- 实施
This National Standard of Canada is equivalent to International Standard ISo 8885-1987. 1. Scope and field of application The principal use of the XID frame is to exchange data link information between two or more HDLC stations. For the purpose of this International Standard, data link information shall include any and all essential operational characteristics such as identification authentication and/or selection of optional functions and facilities concerning each station. It International Standard defines a single-exchange negotiation procedure for establishing operational characteristics when either one or more stations are capable of providing multiple selections. This International Standard provides a means for interchanging the necessary information to establish, at a minimum, a data link connection between two correspondents wishing to communicate. It describes the general purpose XId frame information field content and format. This International Standard does not limit or restrict the use of the XID frame information field from defining other standard formats for use in specific applications. The following are examples of potential uses of the XID command/response frame interchange: - Identification of the calling and called stations when using circuit switched networks (including switched network backup applications). - Identification of stations operating on non-switched networks requiring identification at start-up. - The XID command frame with an individual, group or all-station address may be used to solicit XID response frame(s) from other station(s) on the data link, prior to or following data link establishment. - Convey higher layer information that may be required prior to data link establishment. - Transmission of an XIX response frame at any respond opportunity to request an XID exchange to modify some of the operational parameters (for examples, window size) following data link establishment.
Information Processing Systems - Data Communication - High-Level Data Link Control Procedures - General Purpose XID Frame Information Field Content and Format
- ICS
- 35.100.20
- CCS
- 发布
- 1988-12-01
- 实施
Information processing systems — Data communication — High-level data link control procedures — General purpose XID frame information field content and format
- ICS
- 35.100.20
- CCS
- 发布
- 1987-07-30
- 实施
Defines multilink procedures where multiple parallel data links at the data link layer are used to provide a variable bandwidth data link between network layer entities. Does not specify the way in which single data link protocol functions indicate to multilink procedures that the transmission of a multilink frame has been successful.
Information processing systems; Data communication; Multilink procedures
- ICS
- 35.100.20
- CCS
- L78
- 发布
- 1987-07
- 实施
Information processing systems — Data communication — High-level data link control procedures — Consolidation of classes of procedures — Addendum 2
- ICS
- 35.100.20
- CCS
- 发布
- 1987-06
- 实施
- 1987-06
Information processing systems — Data communication — High-level data link control procedures — Consolidation of classes of procedures — Addendum 1
- ICS
- 35.100.20
- CCS
- 发布
- 1987-06
- 实施
- 1987-06
