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Re: BGP route tracking.
From: cowie () buda renesys com
Date: Fri, 15 Aug 2003 03:50:38 +0000 (GMT)

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 

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. 


Second, a wider-angle 3D plot of prefix withdrawal rates over the 
last week, reported by various peers (one line per). 


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

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