一概述随着21世纪信息社会的到来,社会的各个领域对通信也提出了更新、更高的要求。语音数据、图像通信业务及高速数据交换业务的需求已变得越来越显著。为此,对以上各种业务需有一个宽带—ISDN来统一提供,而ATM技术是宽带—ISDN的基础。当前我国已经在北京、上海、广州等地建立了宽带—ISDN的试验网,并获得了一定的成功。随着ATM技术的不断成熟,ATM技术产品价格的不断下降,本人认为ATM将成为下世纪通信网的主导技术,ATM An overview With the advent of the information society in the 21st century, various fields of society have also proposed newer and higher requirements for communication. Demand for voice data, video communications and high-speed data exchange services has become more significant. To this end, all of these businesses need to have a broadband-ISDN to provide a unified, and ATM technology is the basis of broadband-ISDN. At present, China has set up a broadband-ISDN pilot network in Beijing, Shanghai, Guangzhou and other places, and has achieved some success. With the continuous maturity of ATM technology, ATM technology, product prices continue to decline, I think ATM will become the dominant technology of the next century communications network, ATM