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Abstract : |
Bandwidth sharing between multiple TCP connections has been studied under the assumption that the windows of the di erent connections vary in a synchronized manner. This synchronization is a main result of the deployment of Drop Tail bu ers in network routers. The deployment ofactive queue management techniques such as RED will alleviate this problem of synchronization. We develop in this paper a mathematical model to study how the bottleneck bandwidth will be shared if TCP windows are not synchronized. This permits to evaluate the improvement in fairness and utilization brought by the deployment of active bu ers. Also, this indicates how much a synchronization-based study underestimates the performance of TCP in a nonsynchronized environment. 1, |
