[76667] in North American Network Operators' Group
Re: Dampening considered harmful? (Was: Re: verizon.net and other email grief)
daemon@ATHENA.MIT.EDU (Yakov Rekhter)
Mon Dec 20 09:14:51 2004
To: Jerry Pasker <info@n-connect.net>
Cc: nanog@merit.edu
In-Reply-To: Your message of "Thu, 16 Dec 2004 17:21:23 CST."
<a06200709bde7c21b287a@[65.199.121.152]>
Date: Mon, 20 Dec 2004 06:14:10 -0800
From: Yakov Rekhter <yakov@juniper.net>
Errors-To: owner-nanog-outgoing@merit.edu
Jerry,
> >
> > i've been wondering, since most people aren't using a
> >25xx class router for bgp anymore, and the forwarding planes
> >are able to cope more when 'bad things(tm)' happen, what the value
> >of dampening is these days.
> >
> > ie: does dampening cause more problems than it tries to solve/avoid
> >these days.
> >
> > - jared
> >
>
> I don't know what takes more router resources; dampening enabled
> doing the dampening calculations, or no dampening and constantly
> churning the BGP table. I would assume dampening generally saves
> router resources, or operators wouldn't chose to enable it.
another point to consider is the number of affected routers.
Yakov.
