Re: IXP

[Arnold Nipper <arnold () nipper de>]

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 () nipper de       phone: +49 6224 9259 299
mobile: +49 172 2650958         fax: +49 6224 9259 333

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