It's an interesting thought, and one could always make good use of more feedback to make a control loop behave nicely with respect to throughput, fairness, conv

It's an interesting thought, and one could always make good use of more feedback to make a control loop behave nicely with respect to throughput, fairness, convergence time and stability. There have been many improved congestion control algorithms proposed with this train of thought: XCP[1], RCP[2] to name a few. One of the reasons why they have not caught on is that they require a lot of support from the network. [1] XCP: http://www.isi.edu/isi-xcp/ http://www.isi.edu/isi-xcp/ [2] RCP: http://yuba.stanford.edu/rcp/ http://yuba.stanford.edu/rcp/