Two TCP entities communicate across a reliable network. Let the normalized time

Question

Two TCP entities communicate across a reliable network. Let the normalized time to transmit a fixed length segment equal 1. Assume that the end-to-end propagation delay is 3 and that it takes 2 to deliver data from a received segment to the transport user. The sender initially grants a credit of 7 segments. The receiver uses a conservative flow control policy and updates its credit allocation at every opportunity. What is the maximum achievable throughput?

Hint: you will need to calculate RTT for this.

Explanation / Answer

Fixed length segment = 1

End-to-end propagation delay is = 3

Deliver data from a received segment to the transport user = 2

Sender initially grants a credit = 7 Segment

Total time of transmission = 3+2+3 = 8

Maximum Throughput = 7/(1+8) = 7/9

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.