Approximation of the weighted random early detection buffer admittance algorithm

A method for access control comprising the steps of:

• receiving a packet at an element having a buffer;
• determining if an average buffer fill of the buffer in which the packet is to be stored is greater than a minimum threshold and less than a maximum threshold, where the average buffer fill is an average fill state of the buffer;
• calculating a drop probability associated with the packet which identifies a probability the packet will be dropped from the element in regard to whether the average buffer fill is greater than the minimum threshold and less than the maximum threshold;
• comparing the drop probability to a random number;
• and
• discarding the packet from the element if the drop probability is greater than the random number, wherein the calculating step includes the step of retrieving the drop probability from a probability memory having precomputed drop probabilities.