[26096] in North American Network Operators' Group
Re: Verio Decides what parts of the internet to drop
daemon@ATHENA.MIT.EDU (Sean Donelan)
Sat Dec 4 18:29:13 1999
Date: 4 Dec 1999 15:27:26 -0800
Message-ID: <19991204232726.13442.cpmta@c004.sfo.cp.net>
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To: nanog@merit.edu
From: Sean Donelan <sean@donelan.com>
Errors-To: owner-nanog-outgoing@merit.edu
On Sat, 04 December 1999, "Alex P. Rudnev" wrote:
> It should be your problem. You simply loss the part of connectivity...
>
> The real world is more complex than you drawn below. There is many reasons
> causing people to announce class-B networks with the short prefixes.
Can you give a concrete example?
In most of the cases I've seen the people wanting to break up an class-B
network either because 1) they don't want to return the class-b network to
ARIN and get two or more appropriately sized blocks, or 2) their upstream
provider won't aggregate announcements from multiple connections, 3) they
made a mistake and announced their IGRP subnets via BGP.
