[161498] in North American Network Operators' Group

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Re: [c-nsp] DNS amplification

daemon@ATHENA.MIT.EDU (Sander Steffann)
Mon Mar 18 05:26:38 2013

From: Sander Steffann <sander@steffann.nl>
In-Reply-To: <5146AA62.40205@necom830.hpcl.titech.ac.jp>
Date: Mon, 18 Mar 2013 10:26:24 +0100
To: Masataka Ohta <mohta@necom830.hpcl.titech.ac.jp>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

Hi,

> First of all, multihomed sites with its own global routing
> table entries bloats the global routing table, which is the
> major cause of global routing table bloat and is not acceptable.

Sorry, but that is false. Looking at the CIDR report =
(http://www.cidr-report.org/as2.0/#Gains) the routing table could shrink =
from 449k to 258k just by aggregating announcements. That's a reduction =
of 42.5%. I can't see how multihomed end-site announcements can be worst =
than that... There would almost be no routing table left ;-)

Anyway... Drifting off-topic for this thread.
Sander



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