Performance Analysis of Active Queue Management Algorithms

Congestion in a network or internet creates obvious problems for the end system: reduced availability and throughput and lengthened response times. When a packet is dropped before it reaches its destination, all of the resources it has consumed in transit are wasted. Improving the congestion control and queue management algorithms in the Internet has been one of the most active areas of research. The Internet has mainly relied on the cooperative nature of TCP congestion control in order to limit packet loss and fairly share network resources. However new applications are being deployed which do not use TCP congestion control and are not responsive to the congestion control and are not responsive to the congestion signals given by the network. Such applications are potentially dangerous because they drive up the packet loss rates in the network and can eventually cause congestion collapse.