BGP Route Damping

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1

Good Day,
Perhaps this document was already discussed (I'm new in this list). If it
was please let me know. Basically, I wanted to get an opinion from US
based ISP about this document.

Does somebody know how Tier-1 networks implement route damping ?

Here is the document:

http://www.ripe.net/docs/ripe-210.html

Thank you for your comments

2

I can't speak for any large networks, but I will say that you need to
adjust a portion of that configuration to actually achieve dampening of
/24s and longer. In:

route-map graded-flap-damping permit 20
match ip address prefix-list min24
set damp 30 750 3000 60

you will need to change the numbers in the final line, as there is a
fundamental equation that needs to be followed:

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

So you'll need to increase either the max-suppress (60) or the reuse
(60), or decrease the half-life (30) or the suppress (750).

Pete

3

Perhaps this document was already discussed (I'm new in this list). If it
was please let me know. Basically, I wanted to get an opinion from US
based ISP about this document.

Slightly strange request, but note that:

http://www.ripe.net/docs/ripe-210.html

Has been obsoleted by RIPE 229, published on October 22nd.

Regards,
Rob