Hello, Do you know of any "vpn exchange point" implementations please? -I mean something like IXP but for mpls vpns Let's say I'm an ISP that bought or merged with many small ISPs each with it's own AS# and would like to start offering mpls vpn services end to end If there would be just a few autonomous systems involved I could do option-C and run a full mesh between the Inter-AS-RRs Let's also assume there are more Inter-AS-RRs per AS -but still with small number of ASes the full mesh is doable However if there's like dozen or more ASes -peering with all the Inter-AS-RRs would be cumbersome -that's where the vpn exchange point would be appropriate I believe the exchange-point could work something like option-c ---- Inter-AS-RR-AS1---- Inter-AS-RR-AS2---- Inter-AS-RR-AS3---- -where the AS2 would be represented by a single node -the exchange point Let's also assume the ASes have separate mpls links enabled between them Than this exchange point is just about the control plane (no transit traffic -just inter-as-vpn-routes distribution) It's like adding another layer of RRs to the picture Let's say there are Intra-AS-RRs -that reflect routes between PE routers within a single AS Let's say there are Inter-AS-RRs -that reflect routes between multiple ASes (but if there are may ASes and we can't cope with the full mesh anymore) We can ad Global-RRs --that will reflect routes between Inter-AS-RRs -these Global-RRs could be thought of as the exchange points adam