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: arn...@nipper.de phone: +49 6224 9259 299 mobile: +49 172 2650958 fax: +49 6224 9259 333
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