Suppose that Bob sends N back-to-back packets (numbered 1 to N) to Alice over two links (shown below) with the link between Bob's computer and the router having a transmission rate of R bits/sec (bps), and the link between the router and Alice's computer having a transmission rate of 2R bps. Bob Alice R bps EX 2R bps Router Find a formula, in terms of N,L and R, that characterizes the end-to-end delay of sending the N packets to Alice (i.e., the time needed for the last bit of the Nth packet to arrive at Alice since Bob starts transmitting the first bit of the first packet). Consider only the transmission delay that occurs in sending packets in your analysis. Show your work in detail. Also, using your formula, N = 800 packets, L = 400 bits, and R = find the 100 bps. end-to-end delay when