Host A and B are communicating over a TCP connection, and Host B has already received from A all bytes up through byte 201. Suppose Host A then sends three segments to Host B back- to- back. The first, second and third segments contain 100 , 50, and 70 bytes of data, respectively. In the first segment, the sequence number is 202, the source port number is 300, and the destination port number is 80. Host B sends an acknowledgment whenever it receives a segment from Host A.

Suppose the three segments sent by A arrive in order at B. The first acknowledgment is lost and the second segment is lost. The first acknowledgment expires after 3rd segment sent by B. The 2nd segment expires after the first timeout ends. The 3rd segment expires the second timeout end but before the ack #3.

Draw a timing diagram, showing these segments and all other segments andacknowledgments sent. (Assume there is no additional packet loss.) For each segment in your figure, provide the sequencenumber and the number of bytes of data; for each acknowledgment that you add, provide the acknowledgment number. (hint:draw all the segments and ACKs that are exchanged between Hosts A and B involved in delivering these three segments)