i have just finished $subject. arin and ripe host and admin folk were cooperative and helpful to the point of being embarrassing; dealing with me when the moon is in klutz has to be a major pita. but inter-rir transfer works, works well, and works for legacy space. we are continuing by bringing up an rpki CA under ripe's CA, step by step over the next couple of weeks. normally, it would be trivial; so to make it exciting, we are doing it with pilot versions of the ripe and dragon labs code bases which support the new rrdb [0], as well as rsync, propagation methods. i hope to report success in boring technical detail at the iepg meeting on 2016.04.03 in BA. but i thought it worth reporting that inter-rir transfer works and works well. thank you ripe and arin. randy [0] draft-ietf-sidr-delta-protocol-01.txt