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Understanding Circuit and Packet Switching in Communication Networks

This article explores the essentials of circuit and packet switching in data and computer communication networks. It elaborates on how long-distance transmission occurs over a network of interconnected nodes, which can include various end devices such as computers and terminals. The focus is on the principles of node-to-node data routing, the structure of switched networks, and the importance of reliability through redundant connections. By comparing circuit and packet switching technologies, this guide aims to clarify their roles in efficient data transmission.

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Understanding Circuit and Packet Switching in Communication Networks

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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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