[113621] in North American Network Operators' Group
Re: IXP
daemon@ATHENA.MIT.EDU (kris foster)
Fri Apr 17 15:14:54 2009
From: kris foster <kris.foster@gmail.com>
To: Arnold Nipper <arnold@nipper.de>
In-Reply-To: <49E8D2EA.4080308@nipper.de>
Date: Fri, 17 Apr 2009 12:07:27 -0700
Cc: Paul Vixie <vixie@isc.org>, nanog@merit.edu
Errors-To: nanog-bounces@nanog.org
On Apr 17, 2009, at 12:05 PM, Arnold Nipper wrote:
> On 17.04.2009 21:04 kris foster wrote
>
>> On Apr 17, 2009, at 12:00 PM, Arnold Nipper wrote:
>>
>>> On 17.04.2009 20:52 Paul Vixie wrote
>>>
>>>> with the advent of vlan tags, the whole idea of CSMA for IXP
>>>> networks is 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 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.
>>>> shared-switch
>>>> connections are just virtual crossconnects.
>>>
>>> Large IXP have >300 customers. You would need up to 45k vlan tags,
>>> wouldn't you?
>>
>> QinQ could solve this
>>
>
> not really
painfully, with multiple circuits into the IX :) I'm not advocating
Paul's suggestion at all here
Kris
