A big issue is that "average queue length" was and is a terrible
indicator of congestion. But I think the first "bug" Van was referring
to was the original RED "control law" - I asked him why he thought it
would work as it really ends up looking like a step function which your
first control theory course will show is rather primitive. The thing is,
that TCP is really robust and almost anything will "work" on long-lived
TCP connections. Which is what everyone used for testing.
On 2/10/24 9:10 AM, Kenneth Porter via Bloat wrote:
I didn't know what RED was and had to look it up. For others new to the
lingo:
https://en.wikipedia.org/wiki/Random_early_detection
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