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