Chap3b - Problem 37 a) TCP slowstart is operating in the...

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Problem 37 a) TCP slowstart is operating in the intervals [1,6] and [23,26] b) TCP congestion advoidance is operating in the intervals [6,16] and [17,22] c) After the 16 th transmission round, packet loss is recognized by a triple duplicate ACK. If there was a timeout, the congestion window size would have dropped to 1. d) After the 22 nd transmission round, segment loss is detected due to timeout, and hence the congestion window size is set to 1. e) The threshold is initially 32, since it is at this window size that slowtart stops and congestion avoidance begins. f) The threshold is set to half the value of the congestion window when packet loss is detected. When loss is detected during transmission round 16, the congestion windows size is 42. Hence the threshold is 21 during the 18 th transmission round. g) The threshold is set to half the value of the congestion window when packet loss is detected. When loss is detected during transmission round 22, the congestion windows size is 26. Hence the threshold is 13 during the 24
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This note was uploaded on 03/03/2010 for the course CS 6843 taught by Professor Ross during the Fall '09 term at NYU Poly.

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Chap3b - Problem 37 a) TCP slowstart is operating in the...

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