Extreme BlackDiamond

Tue Oct 14 14:10:49 UTC 2003

Bradley Dunn wrote:
[...]
> Adding more specifics of a /8, /16, or /24 prefix seems to
> have a disproportionate impact; my guess is it has something to do with
> the data structure used to store the prefixes. (If they use a 256-way
> mtrie like they do for CEF, more specifics of a /8, /16, or /24 would
> require creation of an additional internal node.)

  Good point.  I'd made the simple assumption that scanner spikes were
due to table churn, as when redistributing connected and/or static
routes to unstable interfaces.  It happens that most such will be...
unnaturally specific.

[...]

Peter E. Fry