This elementary problem begins to explore propagation delay and transmission delay, two central concepts in data networking. Consider two hosts, A and B, connected by a single link of rate R bps. Suppose that the two hosts are separated by m meters, and suppose the propagation speed along the link is s meters/sec. Host A is to send a packet of size L bits to Host B. a. Express the propagation delay, dprop, in terms of m and s.
b. Determine the transmission time of the packet, dtrans, in terms of L and R.
c. Ignoring processing and queuing delays, obtain an expression for the endto-end delay.
d. Suppose Host A begins to transmit the packet at time t = 0. At time t = d(trans) where is the last bit of the packet. e. Suppose d(prop) is greater than d(trans). At time t = d(trans) where is the first bit of the packetf. Suppose d(prop)is less than d(trans). At time t = d(trans) where is the first bit of thepacket. g. Suppose s=2.5* 10power(8), L=100 bits and R=28 kbps. find thedistance m so tha d(prop) equals d(trans).