This paper introduces the conceptio ns,features,working principles,d eveloping situation and background of ATM,expounds the application of ATM in LAN,and points out the problems being in need of solving in the application of ATM in LAN.

• 介绍了异步转移模式(ATM)的概念、特点、工作原理及其发展现状和背景,阐述了ATM在局域网中的应用,指出了ATM在局域网中应用需解决的问题。