Network layer protocols route data between devices from "summary" of Data Communications and Networking by Behrouz A. Forouzan
The network layer is responsible for routing data between devices in a network. This layer uses network layer protocols to accomplish this task. These protocols determine how data packets are routed from the source device to the destination device. When a device wants to send data to another device on the network, it first breaks the data into smaller packets. These packets contain the necessary information such as the source and destination addresses. The network layer protocol then adds a header to each packet that includes the destination address. Once the packets are ready, the network layer protocol determines the best path for the packets to reach their destination. This process involves examining the d...
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