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Local Area High Speed Networks by Dr. Sidnie Feit

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Summary Points

  • ATM originally was designed to upgrade the world's public wide-area telecommunications networks.

  • ATM is scalable, flexible, and capable of handling voice, video, and data traffic.

  • ATM can be used in local area networks as well as wide area networks.

  • An ATM network is made up of a set of ATM switches, and computers, routers, and Layer 2 LAN switches that have ATM interfaces.

  • ATM protocols operate at Layers 1 and 2. Layer 2 is called the ATM Adaptation Layer.

  • The physical layer is divided into two sublayers, called the ATM Layer and the ATM Physical Layer.

  • Several service categories have been defined for ATM. These include Constant Bit Rate (constant bandwidth, such as for uncompressed voice), Real-time Variable Bit Rate (for example, ...

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