A router is a hardware networking device that connects multiple physical networks that follows different protocols.
A router is responsible for receiving, analyzing and moving incoming data packets to another network.
A router ensures that packets are travelling the most efficient paths to their destinations based on data properties.
A router is best suitable for WAN (Internet).
A router manages traffic routing to create a larger and complex network (internet).
Link failure between routers doesn’t stop network. If a link fails between two routers, the sending router determines an alternate route to keep traffic moving.
