Question: Consider a simplified TCP's ALMD algorithm where the congestion window size is measured in number of segments, not in bytes. In additive increase, the congestion

Consider a simplified TCP's ALMD algorithm where the congestion window size is measured in number of segments, not in bytes. In additive increase, the congestion window size increases by one segment in each RTT. In multiplicative decrease, the congestion window size decreases by half (if the result is not an integer, round down to the nearest integer). Suppose that two TCP connections, C, and C2, share a single congested link of speed 30 segments per second'. Assume that both C, and C2 are in the congestion avoidance phase. Connection C, 's RTT is 100 msec and connection C2's RTT is 200 msec. Assume that when the data rate in the link exceeds the link's speed, all TCP connections experience data segment loss.
a. If both CI and C2 at time to have a congestion window of 10 segments,
what are their congestion window sizes after 2200 msec?
b. In the long run, will these two connections get the same share of the bandwidth of the congested link? Explain.

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a The key difference between C1 and C2 is that C1s RTT is only half of that of C2 Thus C1 adjusts its window size after 100 msec but C2 adjusts its window size after 200 msec Assume that whenever a lo... View full answer

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