Folks, I am new to GNA-G Routing WG, and may not have up to date information on the current available resources. As my understanding of BGP, it is not easy to give lower preference to AS-PATHs which hop large oceans more than once by just using BGP communities. If there is a list of R&E networks including ASN, Country, representing pingable IPv4 and IPv6 destinations, date and email of last update, it may able to write a script to detect possible suboptimal paths. Does anybody maintain such information? Additionally, "machine readable" list of R&E links, not in beautiful maps, may also help. It may need to include AS numbers of both ends, bandwidth, and distance in km, date and email of last update. IXes can also be represented by the AS numbers of the route servers with special tag similar to type-2 OSPF LSA. RADB may be referable, but it doesn't include all information we may need. PeeringDB is similar. Moreover, many entries doesn't hold completed information and may not be well updated. Sincerely, -- Akira Kato