Re: Progressive BGP route dampening

 Der Tony,

 you wrote:
> Message-Id: <199607160940.KAA28911@localhost>
> Subject: Re: Progressive BGP route dampening
> To: Daniel.Karrenberg@localhost (Daniel Karrenberg)
> Date: Tue, 16 Jul 1996 10:40:27 +0100 (BST)
> Cc: eof-list@localhost, routing-wg@localhost
> From: Tony Barber tonyb@localhost
> 
> Daniel Karrenberg wrote:
> >
> >you might want to be a bit more specific about the values you are using,
> >i.e.  how long certain prefixes will be ignored.  This will make
> >troubleshooting easier and reduce calls into your NOC. 
> >
> >This brings up an interesting question too: Can we still troubleshoot
> >the connectivity problems arising if transit ISPs use all different
> >values for this or even the proposed exponential version? 
> >
> Well currently /24 and greater for 'around' 3 hours
> /22 /23 for about an hour
> everything else defaults to about 25 minutes.
> 
> But it depends on the flap frequency. Continual flapping will drive the
> times up untill they hit an upper limit of 255 for /24+ and 90 minutes
> for /22 and /23
 Thank you for this specific information. How did you arrive at these
 values? I estimate you had more than one thought on this...
> 
> Is there a possibility that we could have a discussion on this at the
> next RIPE and possibly agree pan-european values to use ?
 I am definitely interested in a discussion. It would be nice to have
 a report from you on your experience with progressive BGP route dampening.
 May I ask you to prepare something for the next RIPE meeting?
 Regards
    Joachim
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