Effective multipriority scheme for DQDB MAC protocol

The authors propose a modification to the priority scheme specified in the DQDB standard enabling it to operate effectively on large high-speed networks requiring the use of the BWB mechanism to achieve fairness. The modified priority scheme is also capable of operating with the BWB mechanism disabled and is therefore general in its application. Results of a simulation analysis are presented demonstrating the effectiveness of the modified priority scheme for a number of different scenarios