Controlling ill-behaved flows with active queue management in DiffServ networks
区分服务网络中基于主动队列管理的病态流控制

A RIO-based active queue management mechanism,RIO-SD(RED IN and OUT with Selective Dropping),was proposed to remove the impact of ill-behaved flows on Assured Forwarding Services in DiffServ networks.Under this scheme,it is not required to maintain per-flow state in core routers,while the ill-behaved flows can be identified based on the drop history of the OUT-profile virtual queue.RIO-SD controls the monitored ill-behaved flows by increasing its drop probability using two pre-filters placed in front of the IN-profile and OUT-profile virtual queues respectively.Simulation results indicate that our approach can improve the performance of other normal flows.