What is a Router?
For example, routers are commonly used in home networks to share a single Internet connection between multiple computers. In the above example, of a home network, there are two different types of a router: the router and the wireless router.
Router computing Wikipedia.
Besides making a decision as to which interface a packet is forwarded to, which is handled primarily via the routing table, a router also has to manage congestion when packets arrive at a rate higher than the router can process.
