[USR-TC] bandwidth control

I'm using TC Hiperarc ver 5 with 2 E1/R2 cards supporting 60 dialup users. Now i'd like to restrict the total bandwidth these users can use to some number say 256kbps. How can i achieve this ?? __________________________________________________ Do You Yahoo!? Yahoo! Movies - coverage of the 74th Academy Awards® http://movies.yahoo.com/