What is a Router in Computer Network

Router is used to send data to the next network. Routers are Computer Network device that is used for  delivering and forwarding information.

Types of Routers

Many kinds of Routers are present in the current market that are depending on the need of the any enterprises. Cisco is the major manufacturer of router mostly Cisco router are used to set up network of large corporation and even of the ISPs. Broadly Routers are divided into three categories that depending upon the corporate needs.

1. Internet connectivity routers

These routers are used in Border Gateway Protocol for exchange information. These type of routers are further divided into four more categories.

1.1. Edge router

A Edge router or edge device is routes data packets between LANs and an Asynchronous Transfer Mode (ATM) network.

1.2. Subscriber edge router (SER)

Subscriber edge router (SER) Also known as Customer Edge router.Customer Edge router use EBGP protocol, it used in (enterprise) organization.

1.3. Inter provider border router

Inter provider border router are used for Interconnecting ISPs. Inter provider border router use BGP protocol to speake.

1.4. Core router

When a router become the integral part of the LAN(Local Area Network) is called core router. Core router uses internal BGP protocol.Core routers have specialized functions in VPN,that is based on a combination of BGP and Multi-Protocol Label Switching protocols.

One Another Type of Router is SOHO routers. It is used for connection other networks in small geographical area it is known as SOHO connectivity.

How Routers Works

Routers are interconnectivity devices that is used to transfer the datum packets along networks by visualizing the networks path. Routers visualizing the networks path to many networks such as Electronic networks, Transport networks and phone networks. Two ways are exist for routers operation using either control plane or forwarding plane. In control plane the router sends the precise data packets to their specific location. On the other hand in forwarding plane router does not remember the sending or receiving information about the packets.

Advantages of Routers

Routers route the data in an organized way. Routers generate a reliable connection between hosts. Routers is used for alternatively incase the main is fail to transfer data.