[113615] in North American Network Operators' Group
Re: IXP
daemon@ATHENA.MIT.EDU (Arnold Nipper)
Fri Apr 17 15:01:16 2009
Date: Fri, 17 Apr 2009 21:00:53 +0200
From: Arnold Nipper <arnold@nipper.de>
To: Paul Vixie <vixie@isc.org>
In-Reply-To: <g3zlefi04u.fsf@nsa.vix.com>
Cc: nanog@merit.edu
Errors-To: nanog-bounces@nanog.org
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On 17.04.2009 20:52 Paul Vixie wrote
> with the advent of vlan tags, the whole idea of CSMA for IXP networks i=
s passe.
> just put each pair of peers into their own private tagged vlan and let =
one of
> them allocate a V4 /30 and a V6 /64 for it. as a bonus, this prevents =
third
> party BGP (which nobody really liked which sometimes got turned on by m=
istake)
> and prevents transit dumping and/or "pointing default at" someone. the=
IXP no
> longer needs any address space, they're just a VPN provider. shared-sw=
itch
> connections are just virtual crossconnects.
Large IXP have >300 customers. You would need up to 45k vlan tags,
wouldn't you?
Arnold
--=20
Arnold Nipper / nIPper consulting, Sandhausen, Germany
email: arnold@nipper.de phone: +49 6224 9259 299
mobile: +49 172 2650958 fax: +49 6224 9259 333
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