PathBuilder S600 ATM多服务访问平台

ＰａｔｈＢｕｉｌｄｅｒＲＳ６００ＡＴＭ多服务访问平台使服务提供商和企业网络管理人员可以廉价地把在线用户接入专用的和公用的先进ＡＴＭ网络，ＰａｔｈＢｕｉｌｄｅｒＳ６００把所有的声音、视像和数据应用（包括ＡＴＭ园区应用）都集成在一个公共网络上，从而降低了...     

基于TMN的ATM网络管理

ＡＴＭ已从一种标准和原型变成了下一代的变换技术，随着大量的ＡＴＭ交换机进入网络，迫切需要与之相应的ＡＴＭ网络管理技术。本文重点讨论了如何将计算机和电信方法综合用于ＡＴＭ网络管理，特别是ＳＮＭＰ和ＣＭＩＰ协议在ＡＴＭ网络中的应用。另外，本文也讨论了ＴＭＮ接口及其与ＡＴＭ的网络元素ＮＥ的通信方式。     

ATM业务量管理及其对ATM交换机设计的影响

ＡＴＭ网络允诺为各种通信业务在同一个通信网络中提供满足各自服务质量的要求的服务。为此，ＡＴＭ网络体系应能提供业务量管理（ｕｔａｆｆｉｃ ｍａｎａｇｅｍｅｎｔ）功能以支持网络业务千差万别的服务质量要求。本文首先阐述了ＡＴＭ论坛（ＡＴＭ Ｆｏｒｍ）中所定义的ＡＴＭ业务种类，它们各自的服务质量要求，以及为保证服务质量所应采用的管理策略。ＡＴＭ交换机是网络中的关键部件，其不同的设计思想对网络中不同业务服务     

话音ATM交换的实现——ATM论坛电路仿真系列建议

近年来，随着ＡＴＭ主干网络的建设和发展，研究ＡＴＭ对现有通信业务的支持方式和适配技术是目前ＡＴＭ技术研究的热点之一。话音ＡＴＭ交换在降低话音通信成本和简化网络操作环境等方面提供了大量的技术手段，并且支持在单一网络环境中的多种综合业务传输。ＡＴＭ论坛制定了电路仿真系列建议，话音ＡＴＭ交换的技术已经基本成熟。文章通过对话音ＡＴＭ交换的实现和优化方面的技术进行分析，并提出一种基于ＮａｔｉｖｅＭｏｄｅＡＴ     

ATM理论与技术（二）

ＡＴＭ理论与技术（二）西南通信研究所吕涛五、ＡＴＭ适配层ＡＴＭ适配层（ＡＡＬ）位于ＡＴＭ层和高层之间，它在ＡＴＭ网络中的地位十分重要。ＡＴＭ网络要满足宽带业务的需要，使业务种类与信息转移形式、通信速率与通信网设备无关，实现网络传输的透明性和灵活性，就...     

ATM网络中理论与技术

本文主要综述了ＡＴＭ的理论和技术问题，涉及到ＡＴＭ网络中的交换结构设计，控制技术，综合信息传输待方面，概括了这些方面的研究现状和有待解决的问题。特别详细论述了神经网络在ＡＴＭ网中的应用。     

交换式局域网技术二—ATM局域网

ＡＴＭ技术已被确定的Ｂ－ＩＳＤＮ中的转移模式，ＡＴＭ局域网在吞吐量、时延、虚拟网连网能及以及与Ｂ－ＩＳＤＮ互连方面具有十分优越的性能。本文对ＡＴＭ局域网技术作了论述，并介绍了一些主要的ＡＴＭ产品和厂家，供网络用户在规划，设计网络时参考。     

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网络技术在局域网中的应用

ＡＴＭ网络技术是宽带综合业务数字网络（Ｂ－ＩＳＤＮ）的关键技术，随着多媒体技术与多功能个人计算机技术的高速发展，促进了这一技术在计算机局域网络中的广泛应用，本文就ＡＴＭ网络技术在局域网中的应用进行详细综述。     

无线ATM网络中的快速越区切换

介绍了现有移动通信网络中的越区切换方式，研究了无线ＡＴＭ网络中的切换方法，并着重讨论了由于无线ＡＴＭ结构的特点所引起的路由重建问题，提出了一种快速有效的切换方法。     

ATM网络的结构及应用

本文介绍了ＡＴＭ网络的基本结构以及ＡＴＭ专用网和ＡＴＭ公用网交换机，详细介绍了华为公司Ｒａｄｉｕｍ系列交换机的标准和性能，最后用实例说明了ＡＴＭ网络的实际应用状况。     

Technical concepts in broadband ATM

The asynchronous transfer mode (ATM) approach to connecting subscribers to the broadband packet network, is expected to bring an appropriate solution for a future public network. The prerequisites of the broadband network, the characteristics of the ATM technique as well as possible ATM network equipment are described here. Envisaged solutions to the basic problems being posed are discussed.     

公用网ATM交换系统

本文介绍用于公用网的大型ＡＴＭ交换系统的基本结构及其技术特征和要求，并展望ＡＴＭ宽带交换网的发展。     

ATM网络管理的TMN实现

电信管理网（ＴＭＮ）是目前国际上比较成熟的网络管理技术,我们公用网上的管理网络技术确定了走ＴＭＮ的技术路线,ＴＭＮ已成为当前人们的关注的一个热点,本文主要是从ＡＴＭ论坛的ＯＳＳ观点出发,结合ＩＴＵ－Ｔ的ＴＭＮ标准,阐述了ＡＴＭＴＭＮ管理的一些要点。     

The infrastructure for gigabit computer networks

The key features of the synchronous optical network (SONET) and asynchronous transfer mode (ATM) standards for the broadband integrated services digital network (B-ISDN) public network, which is expected to provide a powerful and ubiquitous infrastructure to support the emerging gigabit-per-second data and multimedia applications, are reviewed. The advantages of ATM, the ATM cell format, the B-ISDN protocol reference model and the ATM layer, the ATM adaptation layer, and ATM traffic management and signaling are discussed. An experimental high-performance parallel interface (HIPPI)-ATM-SONET interface is presented as an example to illustrate how the SONET and ATM techniques can be used to provide end-to-end transport for applications requiring a bandwidth of 800 Mb/s and possibly 1600 Mb/s     

ATM technology for corporate networks

Asynchronous transfer mode (ATM) technology is discussed in relation to the requirements of corporate networking. An introduction to ATM switch architecture is presented. The various approaches to ATM switch design that have appeared in previously published literature are reviewed. A discussion is presented of some current issues facing the development of the ATM networks. It is argued that much simpler solutions to many of these issues may be adopted in the context of the corporate network than is permissible for the public broadband network     

Architecture and performance of HIPPI-ATM-SONET terminal adapters

The flexibility of the asynchronous transfer mode (ATM) technique to integrate diverse traffic using a single network platform, and the scalability of the synchronous optical network (SONET) to support various transmission speeds up to gigabit per second ranges, have contributed to the adoption of these standards in the future public telecommunications network. Presently, the networking of supercomputers and high performance workstations is widely based on the high performance parallel interface (HIPPI) standard. A number of efforts to allow the access of HIPPI networks to the public ATM/SONET network has resulted in different experimental Gigabit Testbeds such as CASA and Nectar. To provide the access of HIPPI-based local area networks (HIPPI-LAN) to the ATM/SONET network, HIPPI/ATM/SONET (HAS) terminal adapters could be deployed in instances where the cost of evolving the HIPPI network into a full ATM/SONET-based network is higher than that of a HAS interface. This article presents the architecture and performance of a 2.5 Gb/s HAS experimental prototype, which is a key component of the Nectar Gigabit Testbed. It identifies HAS implementation issues and presents possible solutions that can be extended to the implementation of future HAS devices. The HAS architecture is presented, as well as a discussion on flow control implications due to terminating the HIPPI protocol. The HAS performance is then shown through theoretical modeling and measured results     

TMN-based broadband ATM network management

ATM has rapidly transitioned from a standards and prototyping concept to become the next-generation switching technology used in products available on the market. With the rapid introduction of ATM switches into networks, there is an urgent need to manage them. The article discusses the telecommunication management network (TMN) interfaces being defined for management systems to communicate with ATM network elements (NEs) and other management systems. ATM management systems will have to communicate with ATM NEs in their jurisdiction using TMN interfaces. Networks will usually contain equipment from different suppliers. Thus, it is vital that there be standard management interfaces so that these different NEs can be managed. Some standard interfaces for ATM networks are defined, while others are being defined. The status of these interfaces is reviewed in the article. Communication between different networks is also needed, both between public networks and between public and private networks. Management personnel of one network need to exchange information with other networks for certain functions (e.g., initial service provisioning), and so management systems of different networks will exchange information through a combination of mechanized and manual interfaces. The status of these interfaces is also reviewed in the article     

Data communications using ATM: architectures, protocols, andresource management

The introduction of ATM is being propelled by the need for fast data communications in public and private networks. What is needed is a clear picture of protocol architectures and traffic characteristics of the various applications to be supported both now and in the future. The authors discuss ATM network architectures with special focus on the support of connectionless LAN interconnection and show which benefits can be obtained from the introduction of a connectionless server in an ATM network. They outline issues related to the use of existing protocols when ATM networks are introduced and show which protocol complexities have to be handled by gateways and servers, again using the example of connectionless LAN interconnection. Having presented network and protocol architectures the issue of data communication in ATM, resource allocation, is treated