Extreme congestion (was Re: inter-domain link recovery)

Randy Bush randy at psg.com
Thu Aug 16 16:50:53 UTC 2007

>>> 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.


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