Performance comparison of ECN-BLUE in both single bottleneck and multi-bottleneck networks

We investigate in this paper the application of ECN-BLUE, which uses packet marking to indicate congestion instead of dropping packets currently adopted by BLUE. We compare the performance of ECN-BLUE with BLUE in both a single bottleneck and a multi-bottleneck network. Our simulation results show that ECN-BLUE cannot further improve the performance of BLUE in terms of packet drop rate, average queue size and queue size stability.