The traffic conditioner with promotion and fairness guarantee schemes for DiffServ networks

In this paper, we propose a traffic conditioner with promotion and fairness guarantee (TC/spl I.bar/PFG) schemes to amend the inappropriate marking by conventional traffic conditioners. The TC/spl I.bar/PFG is based on the two rate three color marker (TRTCM) scheme. It can allocate appropriate bandwidth to micro-flow to reduce the unfair distribution among micro-flows and improve the utilization by allowing promotion of packets when there is available bandwidth. Simulation results show that TC/spl I.bar/PFG outperforms TRTCM; the former achieve higher fairness among micro-flows and better throughput than the latter.