Hi, I am planning to implement implementing a fast look up [DEGERMARK, M., BRODNIK, A., CARLSSON, S., AND PINK, S. 1997. Small forwarding tables for fast routing lookups. In Proc. ACM SIGCOMM Conference (SIGCOMM ?97) (Oct. 1997), pp.3?14.] using Click as one of my projects. I would like to know if something like this has been implemented before. Thanks, Siddharth