Switches and routers are essential network devices for data forwarding from "summary" of Data Communications and Networking by Behrouz A. Forouzan
Switches and routers play a crucial role in the efficient operation of modern computer networks. These network devices are essential for the forwarding of data packets from one point to another within a network. Switches are responsible for connecting multiple devices within a local area network (LAN) and forwarding data packets between them. They use MAC addresses to determine the destination of each packet, ensuring that it is delivered to the correct device without unnecessary broadcast traffic. On the other hand, routers are used to connect different networks together, such as connecting a local network to the internet. Routers make forwarding decisions based on IP addresses, enabling them to route data packets across multiple networks to reach their final destination. By using routing tables and algorithms, routers are able to determine the best path for data packets to take through the network, optimizing efficiency and av...
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