The policing function in an ATM network

The gabarit policing function, based on the mean and the standard deviation of a source´s Gaussian envelope, is developed to optimally exploit the statistical multiplexing gain for VBR (variable bit rate) sources by guaranteeing not only the negotiated mean cell rate but also the negotiated variance for the policed connection. The parameters of the gabarit policing function can directly be used by the proposed statistical connection acceptance control algorithm. The main advantages of the gabarit policing function are simplicity of the parameters used, low implementation complexity, flexibility, and applicability to a wide range of source types, i.e., variable bit rate sources, continuous bit rate sources, and bursty sources