IXP

Fri Apr 17 19:05:14 UTC 2009

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


-- 
Arnold Nipper / nIPper consulting, Sandhausen, Germany
email: arnold at nipper.de       phone: +49 6224 9259 299
mobile: +49 172 2650958         fax: +49 6224 9259 333

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