[64014] in North American Network Operators' Group
Re: Extreme BlackDiamond
daemon@ATHENA.MIT.EDU (Peter E. Fry)
Tue Oct 14 10:10:39 2003
Date: Tue, 14 Oct 2003 09:10:49 -0500
From: "Peter E. Fry" <pfry@swbell.net>
To: nanog@merit.edu
Errors-To: owner-nanog-outgoing@merit.edu
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
