help for radius server in huge DS L service

Hi all I have question about radius servers for Huge D SL services 1/ how many clients the freeradius server can handle? ls there any limitation? 2/ how many radius servers in LNS servers? 3/ for Telco company, they provide hundred thousand DSL service. Do you know what their archecture in radius setting? ls it different radius servers per LNS? Thank you for your help __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com