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Allocation of Bandwidth by TCP

​
capacity A [Mb/s]
2
capacity B [Mb/s]
2
flow 1 RTT [ms]
100
flow 2 RTT [ms]
100
flow 3 RTT [ms]
100
The transmission rates of Internet traffic flows are controlled by TCP (Transmission Control Protocol), using an algorithm developed by Van Jacobson in 1988. This Demonstration shows the rates that TCP chooses and the packet drop probabilities that it induces in a simple network with three flows and two links. The three flow rates are shown by how thick the lines are, and each link is labeled with its induced packet drop probability
p
. The rates and packet drop probabilities depend on the link capacities, and on the round trip time (RTT) of each of the flows.
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