13 Things You Might Not Know About 'The Catcher in the Rye'. Since its publication in 1951, The Catcher in the Rye has spawned catchphrases, book-banning campaigns, unauthorized sequels, and untold millions of padded high school English class essays.
What is a router and the functions of router. A router is another network infrastructure device that directs packets through the network based on information from Network Layer (Layer 3) of OSI model. A router uses a combination of hardware and software to route data from its source to its destination.
The main purpose of a router is to connect multiple networks and forward packets destined either for its own networks or other networks. A router is considered a Layer 3 device because its primary forwarding decision is based on the information in the Layer 3 IP packet, specifically the destination IP address.