nanog mailing list archives

BGP Dampening question


From: D Train <dtrain_04 () yahoo com>
Date: Thu, 15 Jul 2004 20:46:54 -0700 (PDT)

I was needing to know if anyone could assist in helping me find a solution to a problem I am experiencing. Here is the 
scenario:
 
I have an AS 20, that has 2 circuits one to city A, and one to City B. City A and City B are in another AS, lets say AS 
1. In my AS 20, I am learning the default route via EBGP, from City A,through my primary link, and also have a static 
route configured to traverse my secondary link, to City B. If I keep seeing the physical connection to City A flapping, 
of course bgp will flap, but will I be able to use route dampening to control the instability in AS 20? Will I be able 
to tweak route dampening to where I will be able to just use the secondary for say a set time, before it will try to 
use the primary link, even if this connection is continuously flapping? I am hoping that I will be able to tweak 
dampening to where it will just use my secondary link, until I can fix my primary link, w/o having to manually shut the 
interface, or shut bgp? 
I apologize if this is a bit off topic...
 
TIA, 
D-


                
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