Short notes on the router in a computer network?

Hello Friends, in this blog post we are going to discuss short notes on the router and switch.

Short notes on the router and switch:


A router is a device capable of interconnecting a variety of LANs and WANs. That is it can connect two or more networks that may or may not be similar.

A router is a combination of hardware and software. The hardware consists of a network, server, and separate computer.

The software consists of the operating system and the routing protocol.

A router accepts the physical addressing to connect two or more logically separate networks.

They do so by organizing the large network into logical network segments.

Each subnetwork is given a logical address. This keeps the networks separate but they can access each other by exchanging data whenever necessary.

In short, routers make routing decisions based on the topology and conditions of the network.

Routers provide reliability, good performance, and a great networking range in the network.


In a top-level classification, the network can interconnect users by either a broadcast or a switching scheme.

A switched network uses a transmission line, multiplexing equipment, concentrator, and switches to interconnect users, as shown in fig1 below.

switch: Short notes on the router and switch

The network equipment can be connected either directly to the central switch with dedicated lines or through a shared medium concentrator, …

which allows only one station in its attached group of communicating with the switch at one time, or by a multiplexer that interleaves the signals from a number of stations onto a single line.

For transmission of a packet from a number of stations onto a single line. For transmission of a packet from a source to destination,…

the network needs to use routing tables by which the switches can determine the path between these two stations.

You can also go through a few more amazing blog links below related to computer networks:

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You can also see the difference between the hub and the bridge…?

Quick Q&A:

What is a router in a computer network?

A router is known as a computer device whose work is to forward data packets between computer networks.

A router is responsible for the packet directions within the networks around the global network.

Data like web pages, emails, etc are sent in the form of data packets.

Why is it called a router?

Routers are used to route the internet traffic between the internet and devices. That’s why it is called a router.

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