# Difference between Bandwidth and Propagation Speed in computer networks?

I want to know the difference between Bandwidth and propagation speed. How are they associated with each other i.e. the impact on bandwidth if propagation speed varies or the impact on speed if bandwidth varies. I have gone through this difference between propagation speed and bandwidth in digital communication still I am unable to understand it very clearly. Could it be possible to explain with some other example like may be with water pipes etc.

• The very first sentence of the answer you reference is "They are unrelated." Varying one has no effect on the other. You will need to say what you find unclear or what you don't understand otherwise another answer may be just as unclear to you. – Derek Elkins May 18 '17 at 23:33

• which is ${(number \; of \; buckets \; in \; the \; chain) \over bandwidth}$.