[c-nsp] BGP route flap damping

[Ajeet Bagga]

On Oct 7, 2008, at 7:40 AM, Ang Kah Yik wrote:

> Hi,
>
> Thanks for sharing your opinion on the disabling of damping as a BCP.
> Yes, this is something that we've taken into consideration.
>
> However, route flap damping is still in use in a number of networks  
> out there.
> Thus, we would like to obtain feedback on how the damping of a flap by
> a transit provider may affect our connectivity.

Are you multihomed to this transit? To other upstreams? Depending on  
the RFD implementation, withdrawal triggered suppression will indeed  
affect your connectivity. For analysis of arguments against RFD,  
specifically how it applies to your case, read the sigcomm  
presentation, <http://conferences.sigcomm.org/sigcomm/2002/papers/ 
routedampening.html>. White paper is available via the ACM portal,  
<http://portal.acm.org/citation.cfm?id=633047>.

~
Ajeet Bagga
Sr. Network Engineer
Cloud Computing Infrastructure and Services
EMC