[84299] in North American Network Operators' Group
Re: Katrina Network Damage Report
daemon@ATHENA.MIT.EDU (Todd Underwood)
Sat Sep 10 10:27:11 2005
Date: Sat, 10 Sep 2005 10:26:45 -0400
From: Todd Underwood <todd@renesys.com>
To: Sean Donelan <sean@donelan.com>
Cc: nanog@nanog.org
In-Reply-To: <Pine.GSO.4.58.0509101015100.3085@clifden.donelan.com>
Errors-To: owner-nanog@merit.edu
sean,
On Sat, Sep 10, 2005 at 10:18:25AM -0400, Sean Donelan wrote:
> On Sat, 10 Sep 2005, Todd Underwood wrote:
> > the general idea is: take a large peerset sending you full
> > routes, keep every update forever, and take a reasonably long (at
> > least a month or two) time horizon. calculate a consensus view for
> > each prefix as to whether that prefix is reachable by some set of
> > those peers. an outaged prefix is one that used to be reachable that
> > not no longer is. in other words, one that has been withdrawn from
> > the full table by some sufficiently large number of peers.
>
> This describes a partioning, not necessarily an outage.
can you explain what you mean?
t.
--
_____________________________________________________________________
todd underwood
director of operations & security
renesys - interdomain intelligence
todd@renesys.com www.renesys.com
