nanog mailing list archives
Re: Dampening considered harmful? (Was: Re: verizon.net and other email grief)
From: Jerry Pasker <info () n-connect net>
Date: Thu, 16 Dec 2004 17:21:23 -0600
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.
I don't know about the rest of the network operators, but the threat of ever being dampened makes me much more careful with my network in general. My general practice is that if a transit line has problems, it's BGP session is put in an admin down state ASAP until the problems can be isolated and corrected.
It is my humble little opinion that the threat of being damped for some period of time is a great hammer to hold over network operator's heads. I think it's a 'good thing(tm)' for automatic penalties to go in to effect for those who are irresponsible with the global routing table. Even if that means that though no fault of my own, one of my transit lines flaps, and gets me somewhat damped for an hour.
-Jerry
Current thread:
- Re: Anycast reliability (was: Re: verizon.net and other email grief), (continued)
- Re: Anycast reliability (was: Re: verizon.net and other email grief) Joe Abley (Dec 13)
- Re: verizon.net and other email grief Todd Vierling (Dec 14)
- Re: verizon.net and other email grief Daniel Karrenberg (Dec 16)
- Re: verizon.net and other email grief Iljitsch van Beijnum (Dec 16)
- Re: verizon.net and other email grief just me (Dec 16)
- Re: verizon.net and other email grief Iljitsch van Beijnum (Dec 16)
- Re: verizon.net and other email grief Steve Gibbard (Dec 16)
- Re: verizon.net and other email grief Joe Maimon (Dec 16)
- Re: verizon.net and other email grief Bill Woodcock (Dec 16)
- Dampening considered harmful? (Was: Re: verizon.net and other email grief) Jared Mauch (Dec 16)
- Re: Dampening considered harmful? (Was: Re: verizon.net and other email grief) Jerry Pasker (Dec 16)
- Re: Dampening considered harmful? (Was: Re: verizon.net and other email grief) Iljitsch van Beijnum (Dec 16)
- Re: Dampening considered harmful? (Was: Re: verizon.net and other email grief) Jared Mauch (Dec 16)
- Re: Dampening considered harmful? (Was: Re: verizon.net and other email grief) Jared Mauch (Dec 16)
- Re: Dampening considered harmful? (Was: Re: verizon.net and other email grief) Yakov Rekhter (Dec 20)
- Re: verizon.net and other email grief Valdis . Kletnieks (Dec 16)
- Re: verizon.net and other email grief just me (Dec 16)
- Re: verizon.net and other email grief Valdis . Kletnieks (Dec 16)
- Re: verizon.net and other email grief just me (Dec 16)
- Re: verizon.net and other email grief Valdis . Kletnieks (Dec 16)
- Re: verizon.net and other email grief just me (Dec 16)