AQM in Linux based routers - comparing with analytical and simulation results

The algorithms of queue management in IP routers determine which packet should be deleted when necessary. The active queue management, recommended by IETF, enhances the efficiency of transfers and cooperate with TCP congestion window mechanism in adapting the flows intensity to the congestion of a network. The article investigates the influence of the way of choosing packets to be dropped (end of the queue, head of the queue) on the performance, i.e. response time for in case of RED and DSRED queues – two representative active queue management mechanisms used in Linux based IP routers.