Network processor architecture with flow-based dynamic bandwidth control for efficient QoS provisioning

This paper presents a network processor architecture with a flow-based dynamic bandwidth control method to efficiently provide QoS on ethernet. The proposed bandwidth control method identifies the active flows. The active flows’ incoming traffic is controlled by the limited bandwidth dynamically assigned to each active flow. NS2 simulation results show that the proposed method provides efficient QoS provisioning. Also, we designed and implemented a network processor with the proposed bandwidth control method. Then, an emulation board was developed using the implemented network processor and a physical layer ASIC chip. Finally, we evaluated the QoS provisioning performance of the network processor using the emulation board.