[routing-wg]Draft doc proposing Route Flap Damping Obsolesence

On 28.04.2006, at 19:24, Randy Bush wrote:
> i suggested that the rfd spec be modified, at least to be per- 
> prefix as opposed to prefix+path, to allow the disaster prefixes to  
> be easily detected and damped.

Hi Randy,

I don't think this alone would save your own (hopefully non- 
desaster ;-) prefixes from beeing damped somewhere, probably this  
would pose even a higher risk, that because of any instabilities in  
"The Internet" some far-ends would damp your (stable) prefixes.  To  
really properly implement RFD for current BGP4 seems to be at least  
highly challenging, if you want to strictly avoid "false positives".   
One approach could be to apply damping only to prefixes which are  
originated by your direct (downstream) neighbors.  To be effective,  
this would have to be done by every AS of course, which, however,  
won't be done because your direct neighbors beeing your customers are  
paying you for providing service not for damping them.

Back to square one :-(

Kind regards
Christian