2008-09-04 2009-04-01 Expert Review 0 Reserved 1 Systematic count-based Sampling 2 Systematic time-based Sampling 3 Random n-out-of-N Sampling 4 Uniform probabilistic Sampling 5 Property match Filtering 6 Hash based Filtering using BOB 7 Hash based Filtering using IPSX 8 Hash based Filtering using CRC 9-65535 Unassigned