A time-based buffering system buffers data based upon how long the data should be held in order to comply with a traffic shaping policy. The data's source or destination need not be considered in determining where to buffer the data. The time-based buffering system includes a collection of time-based...http://www.google.com/patents/US7392279?utm_source=gb-gplus-sharePatent US7392279 - Network traffic shaping using time-based queues
