So the above explanations make switches a single broadcast and multiple collision domains. It’s like now when hubs are gone I can talk to my friend by addressing him by name, otherwise with hubs it was like I had to shout from the rooftop for everybody to listen even though they didn’t want to, what I wanted to say to my friend. Switches are much more than multi-port repeaters, they are quite intelligent in a way that they recognize the devices connected to it by their addresses, so there is no need to broadcast every time one device want to share something or exchange information with another device. One way to make an ever increasing network is to segment a network in smaller part and that’s when the switches come into picture. How often we listen the complaints in office or home that the network being slow or down, if there are hubs in the picture that’s what going to happen, because there is no way with hubs you can control LAN traffic congestion. It’s anyone’s guess that how efficiently it will work, its okay with one or two or three devices in a network but with network scaling up and more and more devices being connected to it the network dies down. it broadcasts every time and every device on the network listens to that broadcast and the one which it is meant for picks it up. On the face it looks that easy but it isn’t so, you want to connect multiple computers but you want to exchange and share data in an efficient manner without losing anything and here hubs fail and switches excel.īy default hubs are single broadcast and single collision domain, which means a device transmitting at a time, transmits to all the devices in the network i.e. Now, you might think that’s the objective, to connect multiple computers. Hub is nothing but a multi-port repeater, as in, it is a fairly unsophisticated and unintelligent device which is just meant for a few computers to get plugged together. To start with, why do we use networking devices, simple, to connect and share various resources as computers, printers etc. I’m saying critical because one must understand what is required from the network and how to get it in the most economical and efficient way. The need for this is that the devices chosen should be such that scaling up a small network should be no problem, and the interconnectivity is not compromised at any cost and that’s why the selection for the right device is so critical. When designing and building a network, even a home network choice of good networking devices is pivotal for that network. The choice between hubs and switches is pretty easy, we’ll show why.
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