Can freeradius1.1.7 support the concurrent requests

Hi: I want to know that can freeradius1.1.7 support the concurrent requests? It means that, should I modify the source such as forking process or creating thread if I want to deal with the concurrent requests? Or the freeradius1.1.7 can support concurrent requests and I need do nonthing such as forking process or creating thread? best regards yiyongyun