A method, apparatus and article of manufacture for filtering a data packet. The data packet is classified a filter type according to a classification criteria. A size value of the data packet is added to a data count for the filter type. The filter type is compared to a committed information rate (CIR)....http://www.google.com.au/patents/US6647424?utm_source=gb-gplus-sharePatent US6647424 - Method and apparatus for discarding data packets