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> The FMCA is trialling exactly this. It will be interesting to see how well it works. I have previously been involved in a number of inter-domain roaming trials. When the RADIUS traffic was routed through an exchange point, the results were not very promising. With packet loss rates of 1-5%, RADIUS retransmissions were pretty common and this would often lead to EAP retransmissions. The overall authentication times could get pretty long and sometimes authentication wouldn't complete at all. Most of the carriers we worked with ended up deploying web portals instead :( |