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ATM 与 IP 之争是几年前业界瞩目的焦点之一,这一争论的结果从目前来说是 IP 一统天下,但如何进一步扩展网上运行的业务种类和提高网络的服务质量(QOS)及实现多网融合,新兴的多协议标记交换技术(MPLS)又成了业界新的宠儿。MPLS 结合 IP 和 ATM在现有的网络技术中,从支持 QOS的角度来看,ATM 作为一种快速分组交换技术具有得天独厚的技术优势。因此ATM 曾一度被认为是一种处处适用的技术,人们最终将建立通过网络核心便可到达另一个桌面终端的纯 ATM 网络。但
The dispute between ATM and IP is one of the focuses of the industry a few years ago. The result of this debate is IP-based at present. However, how to further expand the types of services that are operated on the Internet and improve the quality of service (QOS) Multi-network convergence, the emerging multi-protocol label switching technology (MPLS) has become the industry’s new darling. MPLS combines IP and ATM Among the existing network technologies, ATM has a unique technical advantage as a fast packet switching technology from a QOS supporting standpoint. As a result, ATM was once considered a pervasive technology, and eventually people would set up a pure ATM network that would reach another desktop terminal through the core of the network. but