In this problem you will use a simplified mathematical model to analyze the tradeoff between connection-oriented communication and connectionless communication. On a certain network both forms of communication are provided:

• Using connection-oriented communication, it takes 8 second to establish a connection. after which a packet of up to 20 characters can be sent in 2.0 seconds over the connection, in either direction.
• Using connectionless communication, a packet of up to 20 characters can be sent in 23 second in either direction.

Using connectionless communication, a packet of up to 20 characters c 2.5 second in either direction an be sent in Suppose A and B exchange messages on this network. A initiates the communication and sends to B a message of n characters, which are partitioned into the appropriate number of packets. In reply, B sends a message of m characters, which are partitioned into the appropriate number of packets.