Visit the Transmission Versus Propagation Delay applet at the companion Web site. Among the rates, propagation delay, and packet sizes available, find a combination for which the sender finishes transmitting before the first bit of the packet reaches the receiver. Find another combination for which the first bit of the packet reaches the receiver before the sender finishes transmitting.
Given the Transmission Versus Propagation Delay applet at the companion Web site:
s=Propagation speed = 2.8*108 m/s
E=End-to-End delay = 3.620 ms
L=Packet length=1 KBytes
d=link length=1000 km
R=Transmission rate=10Mbps