[53265] in North American Network Operators' Group
Re: High Processor Rates on Routers.
daemon@ATHENA.MIT.EDU (Rafi Sadowsky)
Wed Nov 6 20:02:20 2002
Date: Thu, 7 Nov 2002 03:01:20 +0200 (IST)
From: Rafi Sadowsky <rafi-nanog@meron.openu.ac.il>
To: Chris Roberts <croberts@bongle.co.uk>
Cc: "internetguy205@hotmail.com" <internetguy205@hotmail.com>,
"nanog@merit.edu" <nanog@merit.edu>, headguy@techies.com
In-Reply-To: <20021106155428.A32228@bongle.co.uk>
Errors-To: owner-nanog-outgoing@merit.edu
## On 2002-11-06 15:54 -0000 Chris Roberts typed:
CR>
CR>
CR> BGP can cause a lot of processor utilisation when updates are received,
CR> although this is not normally at accurate 30 second intervals, so I
CR> wouldn't suspect this particularly.
CR>
I've seen this happen with OSPF routes flapping(due to a flapping
interface) causing the BGP next-hop to flap - the OSPF didn't seem to be
the culprit as it only had ~150 routes while BGP had ~110K routes
(mostly iBGP)
--
Rafi
