[98741] in North American Network Operators' Group
Re: Extreme congestion (was Re: inter-domain link recovery)
daemon@ATHENA.MIT.EDU (Randy Bush)
Thu Aug 16 14:41:41 2007
Date: Thu, 16 Aug 2007 06:50:53 -1000
From: Randy Bush <randy@psg.com>
To: Sean Donelan <sean@donelan.com>
CC: nanog <nanog@merit.edu>
In-Reply-To: <Pine.GSO.4.64.0708161230130.9027@clifden.donelan.com>
Errors-To: owner-nanog@merit.edu
>>> So that's why I keep returning to the need to pushback traffic a couple
>>> of ASNs back. If its going to get dropped anyway, drop it sooner.
>> ECN
> Oh goody, the whole RED, BLUE, WRED, AQM, etc menagerie.
wow! is that what ECN stands for? somehow, in all this time, i missed
that. live and learn.
> Connections already in progress (i.e. the ones with ECN) we want to keep
> working and finish. We don't want those connections to abort in the
> middle, and then add to the congestion when they retry.
so the latest version of ECN aborts connections? wow! i am really
learning a lot, and it's only the first cup of coffee today. thanks!
> The phrase everyone is trying to avoid saying is "Admission Control."
you want "pushback traffic a couple of ASNs back," the actual question i
was answering, you are talking admission control.
randy
