References of "Lepropre, Jean"
     in
Bookmark and Share    
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 ▲]

Detailed reference viewed: 43 (3 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 104 (5 ULg)
Full Text
Peer Reviewed
See detailInferring Groups of Correlated Failures
Lepropre, Jean; Leduc, Guy ULg

Poster (2006, December)

We compare and evaluate different methods to infer groups of correlated failures. These methods try to group failure events occurring nearly simultaneously in clusters. Indeed if several failures occur ... [more ▼]

We compare and evaluate different methods to infer groups of correlated failures. These methods try to group failure events occurring nearly simultaneously in clusters. Indeed if several failures occur nearly at the same moment in a network, it is possible that these failures have the same root cause. The input data of our algorithms are IP failure notifications that can be provided by several sources. We consider two sources: IS-IS Link State Packets (LSPs) and Syslog messages. Our first results on the Abilene and GÉANT networks show that the inference methods behave differently and that using IS-IS LSPs provides more accurate results than using Syslog messages. [less ▲]

Detailed reference viewed: 21 (3 ULg)
Full Text
Peer Reviewed
See detailTOTEM: A Toolbox for Traffic Engineering Methods
Lepropre, Jean; Balon, Simon ULg; Leduc, Guy ULg

Poster (2006, April)

In this document, we propose a demonstration of TOTEM, a TOolbox for Traffic Engineering Methods. This toolbox integrates a series of tools for intra-domain and inter-domain traffic engineering of IP and ... [more ▼]

In this document, we propose a demonstration of TOTEM, a TOolbox for Traffic Engineering Methods. This toolbox integrates a series of tools for intra-domain and inter-domain traffic engineering of IP and MPLS networks. It provides an open source software that allows an operator to test methods coming from the academic research. A researcher can also use the toolbox to compare and promote new TE algorithms. The toolbox is designed to be deployed either as an on-line tool in an operational network, or as an off-line traffic engineering simulator. [less ▲]

Detailed reference viewed: 68 (4 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 67 (8 ULg)