Role Of The Router

The router is a special-purpose computer that plays a key role in the operation of any data network. Routers are primarily responsible for interconnecting networks by:

Determining the best path to send packets
Forwarding packets toward their destination

Routers perform packet forwarding by learning about remote networks and maintaining routing information. The router is the junction or intersection that connects multiple IP networks. The routers primary forwarding decision is based on Layer 3 information, the destination IP address.

The router's routing table is used to find the best match between the destination IP of a packet and a network address in the routing table. The routing table will ultimately determine the exit interface to forward the packet and the router will encapsulate that packet in the appropriated data link frame for that outgoing interface.
Related Topic Router

• Dinamic Routing
• Static Routing
• Basic Routing Configuration
• Routing Tables Principles
• Router Interface
• Router Bootup
• Router And Network Layer
• Introducing Routing And Packet Forwading
• Route Filtering
• Dinamyc Routing Protocol
• Policy Routing
• Routing Issu