In order to support IT service over an ATM network, IP datagram must first be segmented into a number of ATM cells before sending them over the ATM network. As ATM does not provide cell loss recovery, the loss of any of these cells will result in the loss of the entire IP packet. For these reasons, consider the information below:
a. PC = Cell loss rate in the ATM network
b. n = number of cells required to transmit a single IP datagram
c. PP - IP-packet loss rate
Using the information above, derive an expression for PP, and comment on the resulting expression. Also, what ATM services would you use to get the best possible performance?