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Data and Computer Communications

Switching Networks. Long distance transmission is typically done over a network of switched nodesNodes not concerned with content of dataEnd devices are stationsComputer, terminal, phone, etc.A collection of nodes and connections is a communications networkData routed by being switched from nod

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Data and Computer Communications

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    1. Data and Computer Communications Circuit Switching

    2. Switching Networks Long distance transmission is typically done over a network of switched nodes Nodes not concerned with content of data End devices are stations Computer, terminal, phone, etc. A collection of nodes and connections is a communications network Data routed by being switched from node to node

    3. Nodes Nodes may connect to other nodes only, or to stations and other nodes Node to node links usually multiplexed Network is usually partially connected Some redundant connections are desirable for reliability Two different switching technologies Circuit switching Packet switching

    4. Simple Switched Network

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