Abstract: Fuzzy logic controller for a queue manager that services a plurality of queues in an iterative fashion, each queue containing an indeterminate number of elements, the manager iteratively servicing each of the plurality of queues in accordance with a dequeuing quantity parameter, Q. The controller comprises a device for determining an amount of queues having remaining elements after each servicing iteration and outputting the amount; a device for comparing the difference between a system output representing an amount of queues having remaining elements in a current iteration with a previous output representing an amount of queues having remaining elements in a predecessor iteration, the output difference indicating a first dequeuing trend; and, a device for adjusting the dequeuing quantity parameter Q based on the dequeuing trend, the adjusting device capable of driving the system output toward a predetermined setpoint quantity after each servicing iteration.