An open source traffic engineering toolbox

Leduc, Guy; Abrahamsson, Henrik; Balon, Simon; Bessler, Sandford; D’Arienzo, M.; Delcourt, Olivier; Domingo‐Pascual, Jordi; Cerav-Erbas, Selin; Gojmerac, Ivan; Masip-Bruin, X.; Pescapè, Antonio; Quoitin, Bruno; Romano, Simon Pietro; Salvadori, Elio; Skivée, Fabian; Tran, Hung Tuan; Uhlig, Steve; ímit, H.

doi:10.1016/j.comcom.2005.06.010

Cited by 39 publications

(25 citation statements)

References 48 publications

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“…Finally, our method is integrated in the TOTEM toolbox [5] which makes it easily available to anyone, either to use it or to compare it with other approaches. In futher study, we will study SAMTE with other kinds of objectives such as the resilience or the minimization of the reoptimisation in case of traffic matrix change.…”

Section: Discussionmentioning

confidence: 99%

“…DAMOTE gives a better result with a most loaded link of We can also combine a metric-based optimisation with SAMTE. Thanks to the integration of all these tools in the TOTEM toolbox [5], we can first optimise the metrics using the IGP-WO method and then execute SAMTE with the f M L objective function. With just two LSPs, SAMTE can reduce the maximum link load from 45.2% to 42.1% (see the third part of Table II).…”

Section: Simulation On An Operational Networkmentioning

confidence: 99%

“…The traffic engineering toolbox TOTEM [5] aims at creating a repository of TE methods available for operators and for researchers. By integrating our method is this toolbox, we are able to compare our results with MPLS-based approach like [6] or IP-metric based approach like [2].…”

Section: Introductionmentioning

confidence: 99%

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A scalable heuristic for hybrid IGP/MPLS traffic engineering - Case study on an operational network

Skivée

Balon

Leduc

2006

2006 14th IEEE International Conference on Networks

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Abstract-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.

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Section: Discussionmentioning

confidence: 99%

Section: Simulation On An Operational Networkmentioning

confidence: 99%

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A scalable heuristic for hybrid IGP/MPLS traffic engineering - Case study on an operational network

Skivée

Balon

Leduc

2006

2006 14th IEEE International Conference on Networks

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“…More information about online and offline deployment of the toolbox or its architecture can be found in [2].…”

Section: Totem Toolboxmentioning

confidence: 99%

“…All these tools are centralised and propose exact and heuristic optimisation methods. We refer to [2] for a complete review of toolbox-related works.…”

Section: A Toolbox-related Workmentioning

confidence: 99%

Traffic Engineering an Operational Network with the TOTEM Toolbox

Balon

Lepropre

Skivée

et al. 2007

IEEE Trans. Netw. Serv. Manage.

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Abstract-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 IPbased 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 loadbalance 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.

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Oblivious OSPF routing with weight optimization under polyhedral demand uncertainty

Altın¹,

Fortz²,

Umit³

2012

Networks

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The desire for configuring well‐managed open shortest path first (OSPF) routes to handle the communication needs in the contemporary business world with larger networks and changing service requirements has opened the way to use traffic engineering tools with the OSPF protocol. Moreover, anticipating possible shifts in expected traffic demands while using network resources efficiently has started to gain more attention. We take these two crucial issues into consideration and study the weight setting problem for OSPF routing problem with polyhedral demands. Our motivation is to optimize the link weight metric such that the minimum cost routing uses shortest paths with equal cost multipath splitting and the routing decisions are robust to possible fluctuations in demands. In addition to a compact mixed integer programming model, we provide an algorithmic approach with two variations to tackle the problem. We present several test results for these two strategies and discuss whether we could make our weight‐managed OSPF comparable to unconstrained routing under polyhedral demand uncertainty. © 2012 Wiley Periodicals, Inc. NETWORKS, 2012

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An open source traffic engineering toolbox

Cited by 39 publications

References 48 publications

A scalable heuristic for hybrid IGP/MPLS traffic engineering - Case study on an operational network

A scalable heuristic for hybrid IGP/MPLS traffic engineering - Case study on an operational network

Traffic Engineering an Operational Network with the TOTEM Toolbox

Oblivious OSPF routing with weight optimization under polyhedral demand uncertainty

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