Gigabit Networks
“Higher Bandwidth Networks”
Propagation latency unchanged.
- Increasing bandwidth from 1.5Mb/s to 45 Mb/s (factor of 29) decreases file transfer time of 1MB by a factor of 25.
- But, increasing from 1 Gb/s to 2 Gb/s gives an improvement of only 10% !
- Transfer time = propagation time + transmission time + queueing/processing.
Design networks to minimize delay (queueing, processing, reduce retransmission latency)