David, For what it is worth, here is a presentation on scaling of Wi-Fi authentication which we created for this year's CANHEIT conference.
https://canheit-hpcs2016.exordo.com/files/papers/145/presentation_files/1/CANHEIT2016_AuthBigWiFi.pptx We use Packetfence, which uses FreeRADIUS under the covers but adds a layer of context switching which you wouldn't otherwise have if using only FreeRADIUS by itself. Feel free to ask questions, either on the list or directly via email. --- Eriks Rugelis Manager, Network Development, University Information Technology York University, Toronto ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
