You may have heard the word hub, switch or router when somebody was talking about their work or home network. You may be marveling which the right device for your network is and what the dissimilarities between the devices are. Well here is your answer.

Hub
A hub is a machine that attaches all you networked devices for example computers and printers together through a ordinary shared point of access (or hub). It will typically contain 4 or more RJ45 ports. RJ45 ports are used with network cables. The most ordinary network cable in use today is Category 5 or Cat5. The connector on the ends looks like a slightly larger phone jack. A hub attaches all the devices on its ports together. When data lands at one port, it is sent to the other ports so that all the devices can see all the information, usually called packets. When used in a large surroundings this is not competent because all the packets are being sent to all the devices on the network causing traffic and collisions.

Switch
A switch is like a hub and servers usually the same reason but is a bit smarter. It filters and forwards the packets on the similar network so they attend where they are wanted and not to each device. As a frame approaches into the switch, the switch saves the originating MAC address and the creating port in the switch's MAC address table. The only time you will perceive traffic from other devices is when it is directed to the address of your computer.

Router
router ahead data packets to their destinations through a procedure recognized as routing. It moves data between 2 separate networks for example your home network and the internet. A router converses with other routers using routing protocols and then makes and maintains a routing table to remain track of what device is where. Routers use protocols such as ICMP to converse with each other and organize the best route between any two hosts.