This working group has three main objectives: * Consider current issues in traffic flow measurement, such as - Security issues relating to both traffic measuring devices and to the data they produce. - Policy issues relating to traffic measurement and usage accounting, for example any requirements these may place on emerging network protocols - Existing work in traffic flow measurement, including that of IETF Working Groups such as bmwg/ippm, rsvp and rmonmib, as well as that by vendors and independent researchers * Produce an improved Traffic Flow Model considering at least the following needs: - wider range of measurable quantities, e.g. those relating to IPv6, and to class of service - simpler ways to specify flows of interest - better ways to control access to measured flow data - strong focus on data reduction capabilities - efficient hardware implementation * Develop the RTFM Architecture and Meter MIB as 'standards track' documents with the IETF.