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异步与交换模式ATM技术,又称为信号元交换或快速分组交换技术。它支持非定向及定向业务,包括从窄带话音和数据业务到宽带视频(包括高清晰度电视)的所有项目,它提供了一种动态带宽和多媒介的通信方式、并能充分利用网络资源,同时支持同步的异步通信。ITU-T(即CCITT),将ATM作为宽带综合业务数字网(B-ISDN)的切换和传送方式。因为B-ISDN要求支持所有不同类别和不同速率的业务,不仅包括连续性业务,而且还包括实发性业
Asynchronous and Switching ATM technology, also known as signal exchange or fast packet switching technology. It supports both non-directional and directional services, including everything from narrowband voice and data services to broadband video, including high-definition television. It provides a dynamic bandwidth and multi-media communication approach that takes full advantage of network resources, At the same time support synchronous asynchronous communication. ITU-T (CCITT), the ATM as a broadband integrated services digital network (B-ISDN) switching and transmission. Because B-ISDN requires support for all different classes and speeds of business, including not only the continuity of business, but also real business