Problem:
For a 1-Gbps network operating over 5000 km, the delay is the limiting factor, not the bandwidth. Consider a MAN with the average source and destination 20 km apart. At what data rate does the round-trip delay due to the speed of light equal the transmission delay for a 1-KB packet? Assume the speed of light in fibre to be 2/3 the speed of light in a vacuum.
Additional Information:
This question is from Computer Science as well as particularly to Networking. The question here is about delay in time and data network operating over 5000 km. The solution explains this in further detail.