Router: Router is a device that connects two or more networks. It consists of a combination of hardware and software.
Types of Router 1) Static 2) Dynamic
1) A router is a specialized computer connected to more than one n/w 2) Router operate at the n/w layer 3) The primary function of a router is to connect n/w together & keep layer 2 broadcast traffic under control. 4) A router is typical connected to at least two n/w commonly two LAN OR WAN or LAN and its ISP s n/w or more n/w connects. 5) Routers are located at gateways, the places where two or more n/w connect. Two types of Router
1)Static Router:
This router is hard coded in the routing table The administrative has to configure & setup all router manually.
Static routing is the process of predefining router paths across data n/w & can be used to conserve LAN & WAN bandwidth.
2) Dynamic Router:
Only the 1 st Route has to be manually configured after that additional route are automatically discovered.
The route is decided by the router on the basis of traffic & cost.
They use specialize protocols to exchange information.