In Section 3.5.3, we discussed TCP’s estimation of RTT. Why do you think TCP avoids measuring the SampleRTT for retransmitted segments?  P34. What is the relationship between the variable SendBase in...

In Section 3.5.3, we discussed TCP’s estimation of RTT. Why do you think

TCP avoids measuring the SampleRTT for retransmitted segments?

 P34. What is the relationship between the variable SendBase in Section 3.5.4

and the variable LastByteRcvd in Section 3.5.5?