Title :
Robust Routing mechanisms for intradomain Traffic Engineering in dynamic networks
Author :
Casas, Pedro ; Larroca, Federico ; Vaton, Sandrine
Author_Institution :
Fac. de Ing., Univ. de la Repiiblica, Montevideo, Uruguay
Abstract :
Internet traffic is highly dynamic and difficult to predict in current network scenarios. This makes of traffic engineering (TE) a very challenging task for network management and resources optimization. We study the problem of intradomain routing optimization under this traffic uncertainty. Recent works have proposed robust optimization techniques to tackle the problem, conceiving the robust routing (RR) approach. RR copes with traffic uncertainty in an off-line preemptive fashion, computing a single static routing configuration that is optimized for traffic variations within some predefined uncertainty set. Despite achieving routing reliability with relatively low performance loss, RR presents various drawbacks and conception problems as it is currently proposed. This paper brings insight into the different robust routing shortcomings, introducing new mechanisms that improve previous proposals and alleviate these problems. Among others, we propose and evaluate new optimization objectives to attain better global performance from an end-to-end quality of service perspective.
Keywords :
Internet; optimisation; quality of service; telecommunication network management; telecommunication network reliability; telecommunication network routing; telecommunication traffic; Internet traffic; dynamic networks; intradomain routing optimization; intradomain traffic engineering; network management; quality of service; resources optimization; robust routing; routing reliability; Computer network management; Engineering management; IP networks; Performance loss; Resource management; Robustness; Routing; Telecommunication traffic; Tellurium; Uncertainty; End-to-End Routing Performance Evaluation; Proactive Traffic Management; Robust Optimization; Stable and Reactive Robust Routing; Traffic Uncertainty;
Conference_Titel :
Network Operations and Management Symposium, 2009. LANOMS 2009. Latin American
Conference_Location :
Punta del Este
Print_ISBN :
978-1-4244-4551-6
Electronic_ISBN :
978-1-4244-4550-9
DOI :
10.1109/LANOMS.2009.5338803