F2-TCP: A fairer and TCP-friendlier congestion control protocol for high-speed networks

Several studies have shown that in high-speed networks it is likely that a large number of packets are dropped in a single loss event on a bottleneck link and a large portion of the ongoing flows are about to experience packet losses. Such synchronized losses among flows have negative effects on the performance of most loss-based congestion control protocols proposed for high-speed networks, especially with respect to fairness considerations. We propose in this paper F²-TCP, a new loss-based congestion control protocol for high-speed networks, to achieve better fairness and TCP-friendliness. Simulation studies show that F²-TCP indeed fulfills these design goals. The superior performance and the low deployment cost, especially on legacy machines, make F²-TCP a good alternative for todaypsilas high-speed networks.