A method of allocating a priority level in an information flow in a data transmission system including receiving a plurality of data packets and allocating a priority level to each data packet is provided with a controller employing such method. The priority level may be determined in accordance with determining a class of loss of the data packet and a class of service for the data packet. The priority level is also a function of the current load of the information flow. It has been established that the choice for each degree of freedom should preferably be made independently and concurrently. The invention, therefore, provides a method for performing such a composite choice.
