Random early detection gateways for congestion avoidance
IEEE/ACM Transactions on Networking (TON)
TCP and explicit congestion notification
ACM SIGCOMM Computer Communication Review
Policing congestion response in an internetwork using re-feedback
Proceedings of the 2005 conference on Applications, technologies, architectures, and protocols for computer communications
Simulation with real world network stacks
WSC '05 Proceedings of the 37th conference on Winter simulation
CUBIC: a new TCP-friendly high-speed TCP variant
ACM SIGOPS Operating Systems Review - Research and developments in the Linux kernel
The mechanism of adapting RED parameters to TCP traffic
Computer Communications
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Re-inserted ECN (re-ECN) is a proposed TCP/IP extension that informs the routers on a path about the estimated level of congestion. The re-ECN protocol extends the Explicit Congestion Notification (ECN) mechanism and reinserts the obtained feedback into the network. This exposure of congestion information is a new economic traffic management mechanism that enables the network to share the available capacity more equally and to police the compliance of congestion control through e. g. a per-user congestion limitation. This paper studies performance implications of the re-ECN mechanism. Our evaluation is based on simulations with an own re-ECN implementation in the Linux TCP/IP stack. Our results also confirm that congestion exposure generally works. But we also showthat traffic characteristics such as the round-trip time (RTT), flow sizes, as well as the selection of congestion control algorithms have a significant impact on the congestion exposure information. These non-trivial effects have to be taken into account when using the re-ECN information as input parameter for congestion control mechanisms in end-systems or for routing/policing inside the network. Comparable results have not been published so far.