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异步传输模式（ＡＴＭ）将成为支持未来宽带多媒体通信的网络技术。介绍了ＡＴＭ协议的基本概念，包括ＡＴＭ参考模型、参考模型中适应层、ＡＴＭ层和物理层的功能及作用。
Asynchronous Transfer Mode (ATM) will be the network technology to support future broadband multimedia communications. The basic concepts of ATM protocol are introduced, including ATM reference model, adaptation layer, ATM layer and physical layer function in the reference model.