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

本标准适用于X.25环境下,公众数据网络之介接,规定数据终端设备(Data Terminal Equipment,简称DTE)与数据电路设备(Data Circuit Equipment,简称DCE)间或DCE与远程DTE间数据交换之程序。链路接取协议平衡(Link Access Protocol Balance,简称LAPB)除单一链路程序(Single L

Information technology-Telecommunications and information exchange between systems-High-level data link control procedures-Description of the X.25 LAPB-Compatible DTE data link procedures

ICS
35.100.20
CCS
发布
1997-05-27
实施
1997-05-27

ARMY TACTICAL DATA LINK-1 (ATDL-1) MESSAGE STANDARD (U)

ARMY TACTICAL DATA LINK-1 (ATDL-1) MESSAGE STANDARD (U)

ICS
35.100.20
CCS
L78
发布
1997-03-01
实施

Amendment 3 - Information technology -- Telecommunications and information exchange between systems -- Elements of management information related to OSI Data Link Layer standards - Addition of new cou

ICS
35.100.20
CCS
发布
1996-12-26
实施

Amendment 1 - Information technology - Telecommunications and information exchange between systems - High-level data link control procedures - Description of the X.25 LAPB-compatible DTE data link pro

ICS
35.100.20
CCS
发布
1996-11-21
实施

This Specification provides the specification of management information within an Open System related to those operations of the OSI Data Link Layer. Specifics on how Data Link layer management is accomplished is beyond the scope of this document.

Information technology - Telecommunications and information exchange between systems - Elements of management related to OSI Data Link Layer standards

ICS
35.100.20
CCS
发布
1996-11-01
实施
1996-08-21

The purpose is to specify the characteristics of a conceptual Data Link Service and thus supplement the OSI Reference Model in guiding the development of Data Link Protocols.

Information technology - Open Systems Interconnection - Data link service definition

ICS
35.100.20
CCS
L79
发布
1996-09
实施

本标准规定在用户网络接口上建立、维持和清除讯框模式连接之程序。讯框模式包含讯框传送(Frame Relaying)及讯框交换(Frame Switching)。此程序斤定义 S∕T 参考点上之信息和程序,使用于 B 和 D 信道建立讯框模式连接至讯框处理器(Frame Handler,简称 FH)和远程讯框

Signalling Specification for Frame Mode Bearer Service

ICS
35.100.20
CCS
发布
1996-07-24
实施
1996-07-24

Amendment 2 - Information technology -- Telecommunications and information exchange between systems -- Elements of management information related to OSI Data Link Layer standards - Implementation conf

ICS
35.100.20
CCS
发布
1996-07-11
实施

The international community has decided to make this standard available only in the English language version. It has been adopted as a National Standard of Canada on this basis. This National Standard of Canada is equivalent to International Standard ISO/IEC 7776:1995. 1 Scope This International Standard defines an application of the following HDLc standards: ISO/IEC 3309, ISO/IEC 4335, ISO 7478, and ISO/IEC 7809. When there is difficulty in the interpretation of a reworded requirement from one of the other International Standards, the original requirement of ISO/IEC 3309, ISO/IEC 4335, ISO 7478 or ISO/IEC 7809 is definitive. It also defines the structure, elements and procedures for the operation of a DTE using the X.25 LAPB protocol as specified in ITU-T Recommendation X.25.¹) The procedures are applicable to data interchange between a DTE and a DCE, or between two DTEs. The procedures are defined for use on duplex links, using synchronous transmission or start/stop transmission. 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/IEC balanced asynchronous class of procedure with optional functions 2 and 8 (BAC, 2, 8). Extended (modulo 128) operation is the ISO/IEC 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 3 also describes two methods for encoding the frames, as sequences of bits when synchronous transmission is used, and as sequences of octets when start/stop transmission is used. The start/stop encoding specifies optional mechanisms, for use in environments that are sensitive to transmission of octets with values that could be interpreted as ISO/IEC 646 control characters, and/or in environments that support transfer of only seven data bits per start/stop character. The choice of encoding is made by bilateral agreement, or other suitable means, to suit the data transmission characteristics of the environment. 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 layer 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

Information technology - Telecommunications and information exchange between systems - High-level data link control procedures - Description of the X.25 LAPB-compatible DTE data link procedures

ICS
35.100.20
CCS
发布
1996-04-30
实施

Information Technology - Telecommunications and Information Exchange between Systems - High-Level Data Link Control Procedures - Description of the X.25 LAPB-Compatible DTE Data Link Procedures

ICS
35.100.20
CCS
发布
1996-01-01
实施

Information Technology - Telecommunications and Information Exchange between Systems - Protocol Mappings for the OSI Data Link Service

ICS
35.100.20
CCS
发布
1996-01-01
实施

Настоящий стандарт устанавливает многозвенные процедуры (МЗП), которые, используя несколько параллельных звеньев данных на уровне звена

Information processing systems. Data communications. Multilink procedures

ICS
35.100.20
CCS
发布
1996
实施
1997-01-01

The international community has decided to make this standard available only in the English language version. It has been adopted as a National Standard of Canada on this basis. This National Standard of Canada is equivalent to International Standard ISO/IEC 4335:1993. 1. Scope This International Standard specifies elements of data link control procedures for synchronous or start/stop, code transparent data transmission using the HDLC frame structure specified in ISO/IEC 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-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, synchronous/start-stop, 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 technology - Telecommunications and information exchange between systems - High-level data link control (HDLC) procedures - Elements of procedures

ICS
35.100.20
CCS
发布
1995-12-31
实施

Data link service definition for open system interconnection

ICS
35.100.20
CCS
发布
1995-12-28
实施

이 규격은 개방형 시스템 간 상호 접속(OSI)의 데이터 링크 서비스를 다음과 같은 용어로

Data link service definition for open system interconnection

ICS
35.100.20
CCS
L78
发布
1995-12-28
实施
1995-12-28

X.25 LAPB COMPATIBLE DTE DATA LINK PROCEDURES

ICS
35.100.20
CCS
发布
1995-12-28
实施

Data link service definition for open system interconnection

ICS
35.100.20
CCS
发布
1995-12-28
实施

X.25 LAPB COMPATIBLE DTE DATA LINK PROCEDURES

ICS
35.100.20
CCS
发布
1995-12-28
实施

이 규격은 HDLC 규격의 응용에 대하여 정의한다. 이러한 규격들로부터 사용된 요구 사항

X.25 LAPB COMPATIBLE DTE DATA LINK PROCEDURES

ICS
35.100.20
CCS
L78
发布
1995-12-28
实施
1995-12-28

Information technology — Telecommunications and information exchange between systems — X.25 DTE conformance testing — Part 2: Data link layer conformance test suite

ICS
35.100.20
CCS
发布
1995-12-27
实施



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