Peak traffic rate shaped to while traffic still conforms to the policing parameters (Tmax and Burst). If the peak rate is set to a value greater than Tmax, then the traffic will be shaped to the peak rate until the traffic is non-conforming to the policing parameters (Tmax and Burst), and then the traffic will be shaped to the Tmax rate. If the peak rate is less than the Tmax for a flow, then all traffic for that flow will shaped to the Tmax rate, regardless of the Burst parameter. Setting the peak rate to a value of 0 will result no peak rate limiting and flows having virtually unlimited bandwidth until their burst size is used up.