[60708] in North American Network Operators' Group
Re: BGP route tracking.
daemon@ATHENA.MIT.EDU (cowie@buda.renesys.com)
Fri Aug 15 00:24:42 2003
From: cowie@buda.renesys.com
To: MSegal@Corporate.FCIBroadband.com (Mark Segal)
Date: Fri, 15 Aug 2003 03:50:38 +0000 (GMT)
Cc: nanog@merit.edu ('nanog@merit.edu')
In-Reply-To: <7D65E2ADB9ADD4119CC200508BB1E0BC02A11846@fwexch01.corp.futureway.ca> from "Mark Segal" at Aug 14, 2003 10:21:08 PM
Errors-To: owner-nanog-outgoing@merit.edu
> Anybody watching the bgp routing table.. I see about 5,000 less routes than
> usual. Anybody know a good pointer..
Okay, here are a couple quick screenshots of what we're looking at
tonight.
First, a plot that shows the routing table size shrinkage since the
onset of the blackout at 16:13:07 +/- EDT, across a group
of routers.
http://gradus.renesys.com/aug2003/blackout1-rtsize.gif
Second, a wider-angle 3D plot of prefix withdrawal rates over the
last week, reported by various peers (one line per).
http://gradus.renesys.com/aug2003/aug7-aug14-withdrawals.gif
The blackout is the big event at the right hand edge (#3).
Note the sustained high rates of route withdrawal that have been
the norm since the onset of MSBlast. Unlike typical single-cause
events (like the one marked #1), MSBlast scanning has caused
prefix withdrawal rates to gently "lift off" into a noiser mode
across the board, lasting for days (so far).
> (im just getting bored waiting for us to run out of fuel)
Ouch ..
----------
James Cowie
Renesys Corporation
cowie@renesys.com
