Reference : A scalable heuristic for hybrid IGP/MPLS traffic engineering - Case study on an opera...
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Computer science
http://hdl.handle.net/2268/3385
A scalable heuristic for hybrid IGP/MPLS traffic engineering - Case study on an operational network
English
Skivée, Fabian [niversité de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Réseaux informatiques > > > > >]
Balon, Simon [Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Réseaux informatiques >]
Leduc, Guy mailto [Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Réseaux informatiques >]
Sep-2006
14th IEEE International Conference on Networks
IEEE
1-6
Yes
No
International
IEEE ICON 2006
13-15 Sept. 2006
Singapore
Singapore
[en] Traffic Engineering ; Hybrid IP/MPLS ; Simulated Annealing
[en] In current IP networks, a classical way to achieve traffic engineering is to optimise the link metrics. This operation cannot be done too often and can affect the route of a lot of traffic. Multiprotocol Label Switching (MPLS) opens new possibilities to address the limitations of IP systems concerning traffic engineering thanks to explicit label-switched paths (LSPs). This paper proposes a new method based on simulated annealing meta-heuristic to compute a set of LSPs that optimise a given operational objective. The hybrid IGP/MPLS approach takes advantage of both IP and MPLS technologies and provides a flexible method to traffic engineer a network on a day to day basis. We illustrate the capabilities of our method with some simulations and a comparison with other techniques on an existing operational network. The results obtained by setting up a small number of LSPs are nearly optimal and better than by engineering the IGP weights. Moreover, although it could be combined with a static setting of the latter, SAMTE alone gives already the same results as this combination in much less CPU time, which thus allows an administrator to keep its initial and meaningful IGP metrics in his network.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
DGTRE TOTEM
Researchers
http://hdl.handle.net/2268/3385
10.1109/ICON.2006.302621

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