hi, I 'google' algorithm for radius based accounting. but can't find anything. My question is: what's the best algorithm for constrcting broadband access record from radius accouting packets? To my knowledge, some system takes: Record Accouting-on packet arriving time -> record Accouting-Off packet's Acct-Session-Time and Acct-Delay-Time -> The Log-off time is calculated as: Accouting-on time + ( Acct-Session-Time - Acct_delay-Time) But, some other takes : Record Accouting-off arriving time --> record Accouting-Off packet's Acct-Session-Time and Acct-Delay-Time --> Log-on time is calculated as: Accouting-off arriving time - ( Acct-Session-Time - Acct_delay-Time) Are the two methods have the same effect on calculating result? If radius packets were sent to two accouting systems simulataneusly, while the two system takes the different algorithm, will there be any difference between the result of accouting ? regards Joe __________________________________ Yahoo! Movies - Search movie info and celeb profiles and photos. http://sg.movies.yahoo.com/