Problem
1. Can the calculated sending time, receiving time, or round-trip time have a negative value? Why or why not? Give examples.
2. Why isn't the one-way time for a packet simply the round-trip time divided by two?
3. What is the minimum size of an ICMP packet? What is the maximum size of an ICMP packet?
4. What is the minimum size of an IP packet that carries an ICMP packet? What is the maximum size?