Asynchronous Transfer Mode (ATM)  

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ATM  
Asynchronous Transfer Mode (ATM) is an International Telecommunication Union-Telecommunications Standards Section (ITU-T) standard for cell relay wherein information for multiple service types, such as voice, video, or data, is conveyed in small, fixed-size cells. ATM networks are connection-oriented. This chapter provides summaries of ATM protocols, services, and operation. Figure 27-1 illustrates a private ATM network and a public ATM network carrying voice, video, and data traffic.

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