ipfw gred parameters

[Brett Glass]

I've been trying to determine the best parameters for gred ("gentle 
RED") to allow graceful bandwidth limiting in ipfw, but have found 
precious little guidance on the Web as to what the parameters mean. 
The code gives some hints, but I'm still uncertain: what parameters 
work best in a typical system? And how do the parameters submitted 
to "dummynet" correspond to the ones usually seen in descriptions 
of the algorithm?

--Brett Glass