A Switching Testbed for ATM Ring Exchange

ＡＳｗｉｔｃｈｉｎｇＴｅｓｔｂｅｄｆｏｒＡＴＭＲｉｎｇＥｘｃｈａｎｇｅＬｉｕＢｉｎ；ＣｈｅｎｇＳｈｉｄｕａｎ；ＣｈｅｎＪｕｎｌｉａｎｇＡＮＤＷａｎｇＸｉｎｌｉｎｇ（ＳｔａｔｅＫｅｙｔｏｂｏｒａｔｏｒｙ，ＢｅｉｊｉｎｇＵｎｉｖｅｒｓｉｔｙｏｆＰｏｓｔｓ...     

基于ATM技术的接入网

ＡＴＭ异步转移模式是Ｂ－ＩＳＤＮ的关键技术，Ｂ－ＡＮ是基于ＡＴＭ网络的，是实现不同网络结构集成，是综合话音，数据，视频等业务的有效途径，本文简述了ＡＴＭ网络的基本原理，分析了实现局域网互连，用户业务的适配接入等功能，ＡＴＭ技术引入接入网为接入网注入新的活力。     

宽带ISDN与ATM交换技术

本文介绍了Ｂ－ＩＳＤＮ的协议参考模型，并讨论了其中物理层、ＡＴＭ层、ＡＴＭ适配层以及高层的基本功能。给出了Ｂ－ＩＳＤＮ用户－－网络接口的基本规范，包括ＵＮＩ参考配置、Ｂ－ＩＳＤＮ物理层接口以及ＡＴＭ层的参数规定。最后详细描述了ＡＴＭ适配层的协议，包括ＡＡＬ１、ＡＡＬ３／４和ＡＡＬ５。     

B—ISDN和ATM与宽带通信业务

本文首先通过对宽带业务发展情况，ＡＴＭ标准，ＡＴＭ适配层的分析引出了ＡＴＭ对Ｂ－ＩＳＤＮ发展的作用及向Ｂ－ＩＳＤＮ过渡的步骤，并指出工发具ＳＭＤＳ和ＦＲ业务接口的ＡＴＭ交换机，对实现Ｎ－ＩＳＤＮ向Ｂ－ＩＳＤＮ过渡具有积极现实意义，其次介绍和分析了ＩＴＵ－Ｔ，日本ＮＴＴ及欧洲各国关于ＡＴＭ和Ｂ－ＩＳＤＮ的标准化活动，应用试验等情况。     

ATM技术及其研究现状

ＡＴＭ技术及其研究现状疏胜平异步传输模式（ＡｓｙｎｃｈｏｎｏｕｓＴｒａｎｓｆｅｒＭｏｄｅ－ＡＴＭ）是宽带综合业务数字网（Ｂ－ＩＳＤＮ）的目标传输模式。它是一种快速分组交换（ＦＳＰ），通过异步时分技术，按照统计复用原理，不仅能高效地利用传输交换设备，而...     

丹麦可肯有线电视调制解调器

丹麦可肯有线电视调制解调器□克隆伯格（丹麦可肯宽带接入技术有限公司）技术规格前端设备功能／特征：在ＡＴＭ的双向ＩＰ传输标准／兼容性：ＤＶＢ和ＤＡＶＩＣ，ＡＴＭ，ＳＮＭＰ和ＲＡＤＩＵＳ，１０／１００Ｍｂｐｓ以太网下行通信：调制方式为６４ＱＡＭ或者２５６...     

ATM宽带网络流量与拥塞控制研究

文章阐明对ＡＴＭ网络进行流量与拥塞控制不仅是由ＡＴＭ网络的分组交换本质所决定，也是实现Ｂ－ＩＳＤＮ的基本要求，文章还对目前ＡＴＭ网络的ＡＢＲ流量与拥塞控制机制进行了评述，提出了ＡＢＲ流量控制尚待解决的一些问题。     

宽带ISDN与ATM交换技术──第二讲B－ISDN用户─网络接口和协议（上）

本文介绍了Ａ－ＩＳＤＮ的协议参考模型，并讨论了其中物理层、ＡＴＭ层、ＡＴＭ适配层以及高层的基本功能。给出了Ｂ－ＩＳＤＮ用户─网络接口（ＵＮＩ）的基本规范，包括ＵＮＩ参考配置、Ｂ－ＩＳＤＮ物理层接口以及ＡＴＭ层的参数规定。最后详细描述了ＡＴＭ适配层的协议，包括ＡＡＬ１、ＡＡＬ３／４和ＡＡＬ５。     

ATM（异步转移模式）

ＡＴＭ（异步转移模式）张更新（通信工程学院，南京２１００１６）在通信中，ＡＴＭ是异步转移模式（ＡｓｙｎｃｈｒｏｎｏｕｓＴｒａｎｓｆｅｒＭｏｄｅ）的英文缩写，它被认为是目前已知的一种最适合于宽带综合业务数字网（ＢＩＳＤＮ）的交换方式。ＡＴＭ是与ＳＴＭ（...     

厂商动态

上海邮通实业与东莞电信合作构建 ＡＴＭ—ＰＯＮ试验网 ＦＳＡＮ（Ｆｕｌｌ Ｓｅｒｖｉｃｅ Ａｃｃｅｓｓ Ｎｅｔｗｏｒｋ）是一种 ＡＴＭ－ＰＯＮ高速率接入光分配系统,在国际上属先进技术。采用ＦＳＡＮ技术组网可利用已有的一些接入网技术实现全业务接入,即在接入网中不仅可以支持宽带、窄带以及交互式宽带业务,而且还支持一些目前尚未定义的新业务。最近,上海邮通实业发展有限公司率先引进法国ＣＳＴ公司的ＤＯＲＩＳ ＦＳＡＮ系统,与广东省东莞市电信局合作,在该市长安镇构建国内首个ＦＳＡＮ试验网。 东莞市的接入网发展较快,…     

ATM基本技术及其在公用网应用的主要难点

ＡＴＭ技术已被公认为实现宽带综合业务数字网（Ｂ－ＩＳＤＮ）的关键技术。本文将介绍ＡＴＭ技术的基本原理－ＡＴＭ概念，ＡＴＭ协议的分层结构，ＡＴＭ网络和接口，ＡＴＭ传输与复用技术，ＡＴＭ的交换技术，ＡＴＭ的信令方式，ＡＴＭ网络管理和管制以及ＡＴＭ技术在公用网应用中的主要难点。     

ATM to the desktop: Impacting modern business communications with broadband technology

Asynchronous transfer mode (ATM) technology is being touted as a “silver bullet” solution that will enable a host of new and advanced multimedia services seamlessly across both local and wide area networks. While it appears likely that ATM will have a genuine impact on the future of business communications, a major hurdle that needs to be overcome before this happens lies with the semantic gap that exists between the ATM technology development and marketing community and the prospective customer base which stands to benefit from the technology. The work described in this paper represents our attempt to help close this gap through an examination of the kinds of multimedia business applications we believe ATM technology will provide its end users. We describe sample demonstration applications developed at GTE Laboratories that help to explain how ATM can impact business communications from the desktop. A further theme of the work described concerns our efforts to take best advantage of key features of ATM to assist ongoing investigation of multimedia application concepts and their implementation.     

ATM knits voice, data on any net

The hottest topic in the communications industry is asynchronous transfer mode, or ATM. After hiding out for several years in standards committees around the world, the technology is grabbing headlines in every periodical in the field; the reason is that ATM is the first technology to merge voice and data communications into a common format that is equally and equitably inefficient for both. Here, the author presents an overview of ATM technology and applications     

基于ATM的MPLS流量工程研究

研究了基于ATM的MPLS,重点研究和分析了具体实现MPLS流量工程的ATM流控措施、使用约束路由的标记分发协议、路由协议,为MPLS流量工程的具体实施提供了参考。同时研究了MPLS多协议标记交换技术融合IP路由技术、ATM的QoS（Quality of Service）及交换技术,使得流量工程模式可以部署在基于IP的网络,其中包括ATM网上承载IP业务的模式。     

Project Zeus

The concept behind Zeus, an asynchronous transfer mode (ATM) network implemented on the campus of Washington University, is discussed. The first phase of the project, which demonstrated the feasibility of the core technology, provided a basis for a more complete design, and served as a testbed for application development, is reviewed. The switch architecture, network control software, application interfaces, and internetworking developed in the first phase are described     

利用多协议标记交换技术实现IP网的流量工程

文章概述了基于集成模式的新一代技术——多协议标记交换技术(MPLS)产生的原动力及其良好的应用前景,并通过对IP网络中流量工程技术发展阶段的分析,比较了各种流量工程技术的差异及优缺点,重点研究了基于MPLS技术实现IP网络中流量工程的工作原理,并以深训市IP城域网为例作了具体说明。     

Asynchronous transfer mode: the ultimate broadband solution

Asynchronous transfer mode (ATM) is a new telecommunications technology which is being developed and standardised for use with broadband services. This tutorial paper describes the main features of ATM     

ATM local area networks: a survey of requirements, architectures,and standards

There is increasing interest in deploying ATM technology in local or campus networks. ATM is an ideal technology to overcome many of the limitations of today's LAN technologies. This article focuses on the application of ATM in the LAN environment to interconnect high-end host computers, and on the interworking of ATM-based LANs with legacy LANs. The authors introduce ATM LAN requirements, followed by a discussion of possible ATM LAN architectures to support these requirements. The article then covers current standards and their relation to the possible architectures, and concludes with a discussion of current ATM LAN issues and directions     

The ATM layer chip: an ASIC for B-ISDN applications

The authors describe the architecture of an experimental research prototype application specific integrated circuit (ASIC) designed to serve as a generic building block of the future broadband integrated services digital network (B-ISDN). The chip performs common asynchronous transfer mode (ATM) layer functions such as cell assembly and cell disassembly. A new media access control (MAC) protocol developed for a broadband customer premises network is also integrated in the chip. The chip interfaces to the B-ISDN through a synchronous optical network (SONET) synchronous transmission signal-3c (STS-3c) framer chip. The ATM layer chip has been designed using 1.2 μm CMOS technology with a die area of 5.4×5.4 mm² and approximately 27000 transistors. Experimental results are described. At the user network interface, the chip can be used to implement broadband terminal adaptors and the network termination. At the broadband local exchange, the chip can be used in the implementation of ATM statistical multiplexers, ATM switch port controllers, etc     

无线ATM分层协议的分析与研究

分析了ATM在移动通信中的应用,研究了WATM分层协议及相关技术。