Question

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25. The following figure shows the dynamics of a TCP congestion window. (8 points) 45 40 35 s 30 3 25 20 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Transmission round i) What is the initial threshold? d at the t transmission round that caused the congestion window to change from exponential growh to linear i) What happerned growth? ii) What kind of loss occurred at the 16 transmission round that caused the congestion window to drop? What is the new threshold at 17 transmission round? hat kind of loss occurred at the 22el transmission round that caused the congestion window to drop? is the new threshold at 23' transmission round? n) During which transmission rounds is Slow Start shown? Mention all. wii) Dari ing which transmission rounds is Congestion Avoidance shown? Mention all. 26, (2 points, re different actions tsken by TCP for Timeouts and Triple Daplicate ACKs? (You do not have to mention the actions.)

Answer 1

25.

The answers are as follows:

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