References of "Skivée, Fabian"
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See detailTOTEM(v3.2) - Toolbox of Traffic Engineering Methods
Balon, Simon; Delcourt, Olivier; Lepropre, Jean et al

Software (2008)

TOTEM is a toolbox for traffic engineering methods. TOTEM is licensed under the GPL (GNU General Public License) version 2.0. This open-source toolbox provides a set of tools to allow network operators to ... [more ▼]

TOTEM is a toolbox for traffic engineering methods. TOTEM is licensed under the GPL (GNU General Public License) version 2.0. This open-source toolbox provides a set of tools to allow network operators to traffic engineer their network. It can also be used by researchers who implement new techniques. [less ▲]

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See detailTraffic Engineering an Operational Network with the TOTEM Toolbox
Balon, Simon ULg; Lepropre, Jean; Delcourt, Olivier et al

in IEEE Transactions on Network and Service Management (2007), 4(1), 51-61

We explain how the TOTEM toolbox can be used to engineer an operational network. TOTEM is an open source TOolbox for Traffic Engineering Methods which covers IP-based and MPLS-based intradomain traffic ... [more ▼]

We explain how the TOTEM toolbox can be used to engineer an operational network. TOTEM is an open source TOolbox for Traffic Engineering Methods which covers IP-based and MPLS-based intradomain traffic engineering (TE) algorithms, but also interdomain TE. In this paper, we use the toolbox as an off-line simulator to optimise the traffic of an operational network. To help an operator to choose between an IP-based or MPLS-based solution, or to find the best way to load-balance a network for a given traffic, our case study compares several IP and MPLS routing algorithms, evaluates the impact of hot-potato routing on the intradomain traffic matrix, and analyses the worst-case link failure. This study reveals the power of a toolbox that federates many traffic engineering algorithms. [less ▲]

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See detailA scalable heuristic for hybrid IGP/MPLS traffic engineering - Case study on an operational network
Skivée, Fabian; Balon, Simon ULg; Leduc, Guy ULg

in 14th IEEE International Conference on Networks (2006, September)

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 ... [more ▼]

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. [less ▲]

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See detailComparing traffic engineering objective functions
Balon, Simon ULg; Skivée, Fabian; Leduc, Guy ULg

in CoNext 2005 - Student Workshop (2005, October)

We compare and evaluate how well-known and novel network-wide objective functions for Traffic Engineering (TE) algorithms fulfil TE requirements. To compare the objective functions we model the TE problem ... [more ▼]

We compare and evaluate how well-known and novel network-wide objective functions for Traffic Engineering (TE) algorithms fulfil TE requirements. To compare the objective functions we model the TE problem as a linear program and solve it to optimality, thus finding for each objective function the best possible target of any heuristic TE algorithm. Our first results suggest that they can give quite different results. [less ▲]

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See detailArchitecture d'une boîte à outils d'algorithmes d'ingénierie de trafic et application au réseau GEANT
Skivée, Fabian; Balon, Simon ULg; Delcourt, Olivier et al

in Ingénierie des protocoles - Qualité de service, multimédia et mobilité (2005, March)

This paper presents the software architecture of a traffic engineering toolbox. The methods already included cover MPLS-based intra-domain traffic engineering (TE), but will soon cover IP-based TE and ... [more ▼]

This paper presents the software architecture of a traffic engineering toolbox. The methods already included cover MPLS-based intra-domain traffic engineering (TE), but will soon cover IP-based TE and inter-domain TE. This toolbox provides an open source software that allows an operator to test methods coming from the academic research. A researcher can also use the toolbox for comparing and promoting his/her TE algorithms. The toolbox is designed to be deployed as an on-line tool in a operational network or as a traffic engineering simulator. We present a case study of traffic optimisation on the GÉANT network that compares different routing algorithms, evaluates different protection cost, and analyses the worst-case link failure. [less ▲]

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