It would be a simple change to add an option to CCID 2 to have the
sender use
different AIMD parameters. The obvious possibility would be for the
slowly-responding option to use AIMD (1/5, 1/8) instead of AIMD(1, 1/2).
This means that the congestion window would be increased by 1/5 of an
MSS
rather than by one MSS per round-trip time, and after loss events the
congestion
window would be decreased to 7/8-ths of its old value, not to half of
its old value.
This would differ from the regular CCID 2 by being slowly-responding,
and would
be somewhat similar in its time scales to CCID 3.
This is discussed in some detail in the following:
A Comparison of Equation-Based and AIMD Congestion Control.
Floyd, S., Handley, M., and Padhye, J.
May 2000.
URL "http://www.icir.org/tfrc/";
Is this worth doing? It would be very simple to specify, and very
simple to
implement. And it shouldn't have too many surprises in its dynamics.
- Sally
http://www.icir.org/floyd/
