[c-nsp] BGP Route Nailing & Reoriginating

Joe Provo jzp-cnsp at rsuc.gweep.net
Tue Dec 5 14:09:40 EST 2006


On Tue, Dec 05, 2006 at 05:54:05AM -0800, Lawrence Wong wrote:
> Dear gurus,
> 
> I have an environment as follows:
> 
>         (R1 / AS1) <-> (R2 / AS2) <-> (R3 / AS3)
[snip]
> The objective is to "hide" AS1 and also to prevent BGP dampening
> at R3 caused by flapping link between R1 & R2.

Re-evaluate your use of BGP in the topology.  If you have reasons
to use it and crux of the problem is dampening, re-examine your
dempening parameters.  Trivial case is to put your prefixes of
interest onto the dampening exemptions.  

Joe

-- 
             RSUC / GweepNet / Spunk / FnB / Usenix / SAGE


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