Each packet of the present invention is assigned a priority level. The current data packet flow rate is detected. This data packet flow rate is quantized into at least one data rate level. The current buffer circuit depth is determined as is the priority associated with the current data packet. The probability...http://www.google.com/patents/US7002914?utm_source=gb-gplus-sharePatent US7002914 - Congestion control in a network device having a buffer circuit
