Estimating an Additive Path Cost With Explicit Congestion Notification

Adaptive explicit congestion notification

Using ns-2 simulations, this paper evaluates an Adaptive Explicit Congestion Notification (AECN) router. By receiving round-trip time (RTT) source hints from each TCP flow, AECN divides flows into flow groups based on RTT ranges. AECN uses distinct flow group drop probabilities and a mark front scheme to provide higher goodput and better fairness than Random Early Detection (RED) and Explicit C...

Congestion Control Using Multilevel Explicit Congestion Notification

Congestion remains one of the main obstacles to the Quality of Service (QoS) on the Internet. We think that a good solution to Internet congestion should optimally combine congestion signaling from network and source reaction, with the following as its main goals: minimum losses and delays, maximum network utilization, fairness among flows, and last but not least, scalability of the solution. T...

Tunnelling of Explicit Congestion Notification

Scalable Layered Multicast with Explicit Congestion Notification

Many Layered Multicast (LM) congestion control schemes have been proposed to serve different users with heterogeneous bandwidth requirements. Most of the LM algorithms suffer from a large IGMP leave latency and a sudden rate increase. Layered Increase/Decrease with Dynamic Layering (FLID-DL) was introduced to address these challenges. Nevertheless, FLID-DL can neither provide very good bandwidt...

Traffic Management using Multilevel Explicit Congestion Notification

In this paper we present a new traffic management scheme based on an enhanced Explicit Congestion Notification (ECN) mechanism. In particular we used multilevel ECN, which conveys more accurate feedback information about the network congestion status than the current two levels ECN. We have designed a TCP source reaction that takes advantage of the extra information about congestion and tunes b...