![]() ![]() ![]() For example, a packet from S1 to R1 must be forwarded to the next router on the path to S2. Routing: When a packet reaches the router's input link, the router will move the packets to the router's output link.The main functions performed by the network layer are: The main role of the network layer is to move the packets from sending host to the receiving host. ![]() It determines the route from the source to the destination and also manages the traffic problems such as switching, routing and controls the congestion of data packets.The network layer translates the logical addresses into physical addresses.It handles the service requests from the transport layer and further forwards the service request to the data link layer.The Network Layer is the third layer of the OSI model. ![]()
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