[113618] in North American Network Operators' Group
Re: IXP
daemon@ATHENA.MIT.EDU (Arnold Nipper)
Fri Apr 17 15:07:55 2009
Date: Fri, 17 Apr 2009 21:05:14 +0200
From: Arnold Nipper <arnold@nipper.de>
To: kris foster <kris.foster@gmail.com>
In-Reply-To: <40ABC7D3-27AF-4028-8412-024A56E20DE7@gmail.com>
Cc: Paul Vixie <vixie@isc.org>, nanog@merit.edu
Errors-To: nanog-bounces@nanog.org
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On 17.04.2009 21:04 kris foster wrote
> On Apr 17, 2009, at 12:00 PM, Arnold Nipper wrote:
>=20
>> On 17.04.2009 20:52 Paul Vixie wrote
>>
>>> with the advent of vlan tags, the whole idea of CSMA for IXP =20
>>> networks is passe.
>>> just put each pair of peers into their own private tagged vlan and =20
>>> let one of
>>> them allocate a V4 /30 and a V6 /64 for it. as a bonus, this =20
>>> prevents third
>>> party BGP (which nobody really liked which sometimes got turned on =20
>>> by mistake)
>>> and prevents transit dumping and/or "pointing default at" someone. =
>>> the IXP no
>>> longer needs any address space, they're just a VPN provider. =20
>>> shared-switch
>>> connections are just virtual crossconnects.
>>
>> Large IXP have >300 customers. You would need up to 45k vlan tags,
>> wouldn't you?
>=20
> QinQ could solve this
>=20
not really
--=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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