Question
COMPUTER NETWORKS 8. Host A and B are communicating over a TCP connection, and Host B has already received from A all bytes up through
COMPUTER NETWORKS
8. Host A and B are communicating over a TCP connection, and Host B has already received from A all bytes up through byte 150. Suppose Host A then sends two segments to Host B back-to-back. The first and second segments contain 100 and 70 bytes of data, respectively. In the first segment, the sequence number is 151, the source port number is 330, and the destination port number is 8080. Host B sends an acknowledgment whenever it receives a segment from Host A. (Hint: the sequence number of a segment is the sequence number of the first byte of the payload/data; generally, the ACK number for a received segment is the sequence number of the received segment plus the number of bytes in the payload/data of the received segment, except for the connection establishment and teardown processes.)
a.) In the second segment sent from Host A to B, what are the sequence number, source port number, and destination port number?
b.) If the first segment arrives before the second segment, in the acknowledgment of the first arriving segment, what is the acknowledgment number, the source port number, and the destination port number?
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