%0 Conference Proceedings %T Balancing by PREFLEX: Congestion Aware Traffic Engineering %+ University College of London [London] (UCL) %A Araújo, João, Taveira %A Clegg, Richard %A Grandi, Imad %A Rio, Miguel %A Pavlou, George %Z Part 3: Resource Allocation %< avec comité de lecture %( Lecture Notes in Computer Science %B 10th IFIP Networking Conference (NETWORKING) %C Valencia, Spain %Y Jordi Domingo-Pascual %Y Pietro Manzoni %Y Sergio Palazzo %Y Ana Pont %Y Caterina Scoglio %I Springer %3 NETWORKING 2011 %V LNCS-6641 %N Part II %P 135-149 %8 2011-05-09 %D 2011 %R 10.1007/978-3-642-20798-3_11 %K Traffic engineering %K congestion control %Z Computer Science [cs] %Z Computer Science [cs]/Networking and Internet Architecture [cs.NI]Conference papers %X There has long been a need for a robust and reliable system which distributes traffic across multiple paths. In particular such a system must rarely reorder packets, must not require per-flow state, must cope with different paths having different bandwidths and must be self-tuning in a variety of network contexts. PREFLEX, proposed herein, uses estimates of loss rate to balance congestion. This paper describes a method of automatically adjusting how PREFLEX will split traffic in order to balance loss across multiple paths in a variety of network conditions.Equations are derived for the automatic tuning of the time scale and traffic split at a decision point. The algorithms described allow the load balancer to self-tune to network conditions. The calculations are simple and do not place a large burden on a router which would implement the algorithm. The algorithm is evaluated by simulation using ns-3 and is shown to perform well under a variety of circumstances. The resulting adaptive, end-to-end traffic balancing architecture provides the necessary framework to meet the increasing demands of users while simultaneously offering edge networks more fine-grained control at far shorter timescales. %G English %Z TC 6 %2 https://inria.hal.science/hal-01597978/document %2 https://inria.hal.science/hal-01597978/file/978-3-642-20798-3_11_Chapter.pdf %L hal-01597978 %U https://inria.hal.science/hal-01597978 %~ IFIP-LNCS %~ IFIP %~ IFIP-TC %~ IFIP-TC6 %~ IFIP-NETWORKING %~ IFIP-LNCS-6641