"vpn exchange point" VLAN Exchange Points NANOG50 Atlanta.311 Tagged VLANs make most sense in dense MetroLANs (MANs) What goes on in Atlanta Stays in Atlanta - NANOG50 http://en.wikipedia.org/wiki/IEEE_802.1Q What goes on in North America Stays in North America ? NA ? North America ? Note: 33-bit IPv4 addressing is half of 66-bit Tagged VLAN - LOC.ID