In TCP Vegas, the calculation of Actual Rate is done by dividing the amount of data transmitted in one RTT interval by the length of the RTT. (a) Show that for any TCP, if the window size remains constant, then the amount of data transmitted in one RTT interval is constant once a full window-full is sent. Assume that the sender transmits each segment instantly upon receiving an ACK, packets are not lost and are delivered in order, segments are all the same size, and the first link along the path is not the slowest. (b) Give a timeline sketch showing that the amount of data per RIT above can be less than Congestion Window.

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter9: Computer Networks
Section: Chapter Questions
Problem 10VE
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In TCP Vegas, the calculation of Actual Rate is done by dividing the amount of data transmitted in one
RTT interval by the length of the RTT.
(a) Show that for any TCP, if the window size remains constant, then the amount of data transmitted in
one RTT interval is constant once a full window-full is sent. Assume that the sender transmits each
segment instantly upon receiving an ACK, packets are not lost and are delivered in order, segments are
all the same size, and the first link along the path is not the slowest.
(b) Give a timeline sketch showing that the amount of data per RIT above can be less than Congestion
Window.
Transcribed Image Text:In TCP Vegas, the calculation of Actual Rate is done by dividing the amount of data transmitted in one RTT interval by the length of the RTT. (a) Show that for any TCP, if the window size remains constant, then the amount of data transmitted in one RTT interval is constant once a full window-full is sent. Assume that the sender transmits each segment instantly upon receiving an ACK, packets are not lost and are delivered in order, segments are all the same size, and the first link along the path is not the slowest. (b) Give a timeline sketch showing that the amount of data per RIT above can be less than Congestion Window.
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