The „Bandwidth” parameter tell us the data speed of the transmission in a definite time. We may compare the bandwidth with a garden hose water where the water amount depends on 2 main parameters: pressure and distance.

We may define pressure as a stream and the bandwidth as a hose. In this model these two parameters depends on each other, if the diameter of this hose is very narrow you will not have much water through it even if the stream is fast enough.

We should also consider the distance, the longer the hose is the more water pressure we need. The solution is to divide the hose into smaller parts and amplify them but you should remember that the longer distance is the deterioration occur and the water can flow very slowly or starts to drop.

The same situation happened in networks and lines. If you have significant distance for the signal you need to reinforce it or you will lose your connection. You should also divide your network into smaller parts and keep the distance at the proper level using hubs, switches an routers.

Natural situation is that you may expect traffic jam in your network when lots of devices try to operate in one bandwidth at the same time however segmentation will allow you to exclude a few problems concerning the „bandwidth”.