Router

• A router is a networking device that forwards data packets (amount of data) between computer networks.
• The data packet is forwarded from one router to another through the network until it reaches it destination.
• A router decided which way to send each information packets.

Process

• A router is connected to two or more data lines from different networks.
• When a data packet comes in on one of the lines, the router reads the address information in the packet to determine the ultimate destination.
• Then using information in its routing table or routing policy, it directs the packet to the next network on its journey.

Types of router

1. Corded router

• Corded router are used cords to connect system with each other to interact or share data.
• If the cords are placed very close to each other, you can save the length of the cable as well as money.
• Corded routers have high quality of data transmission.

2. Wireless routers

• As these routers do not use cords to connect system with each other to interact or share data.
• It is easy to get internet access for all your computers without using a single wire by using these wireless routers.
• These types of wire-free routers have functioned with the support of radio waves.
• These kinds of routers offer high speed internet connection.

Advantages

• Router is useful for Connectivity between different Networks.
• Router limits the collision domain.
• Router can function on both LAN and WAN.
• Router can determine best path/route for data to reach the destination.
• Router can connects different media and architectures.

Disadvantages

• Router only work with routable protocol.
• It is very high cost device.
• Increase latency due to greater degree of packet filtering.

My notes