Re: [nsp] BGP Dampening bug?

From: Pete Templin (templin@urdirect.net)
Date: Thu Oct 19 2000 - 18:20:32 EDT

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On Thu, 19 Oct 2000, Rick Payne wrote:

> We've been running with the RIPE specified values on BGP dampening for a
> while now. However - I noticed an oddity today when debugging zebra.
>
> A route which was flapping was getting to its supress value, but never
> going above it. This meant the route was withdrawn but almost immediately
> re-instated with no hold down. It turns out that this is because we had the
> supress value as a multiple of the half life.

I believe this is the relationship that must be respected:

2x(max-suppress/half-life) must be greater than (suppress/reuse).

Pete

-- Peter J. Templin, Jr., CCNA, CCDA VP Networking

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