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North American Network Operators Group
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Re: Dampening considered harmful? (Was: Re: verizon.net and otheremail grief)
- From: Jerry Pasker
- Date: Mon Dec 20 17:53:40 2004
An even more important consideration is whether our current paradigm
of flap dampening actually is the behavior that we want to penalize.
If a single link bounces just once, then thanks to our mesh,
confederations, differing MRAI's etc., we can see many many changes
to the AS path, resulting in dampening. Do we really want to
inflict pain over such an incident?
Tony
Of course not. Dampening should be set on a router according to that
router's views. The more chances a router can see a single event
multiplied, the more lax dampening should be on that router.
I think Rob Thomas's saying of "know your network" really applies here.
In my book, the threat of dampening to anyone not playing nice is the
true value of route dampening. Automatic enforcement of etiquette.
-Jerry
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