Traffic Engineering an Operational Network with the TOTEM Toolbox

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 choose between an IP-based or MPLS-based solution, or 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.

[1]  Ravindra K. Ahuja,et al.  Network Flows: Theory, Algorithms, and Applications , 1993 .

[2]  Mikkel Thorup,et al.  Internet traffic engineering by optimizing OSPF weights , 2000, Proceedings IEEE INFOCOM 2000. Conference on Computer Communications. Nineteenth Annual Joint Conference of the IEEE Computer and Communications Societies (Cat. No.00CH37064).

[3]  José-Luis Marzo,et al.  QoS online routing and MPLS multilevel protection: a survey , 2003, IEEE Commun. Mag..

[4]  Wayne D. Grover,et al.  Mesh-based Survivable Transport Networks: Options and Strategies for Optical, MPLS, SONET and ATM Networking , 2003 .

[5]  Guy Leduc,et al.  A Preemption-Aware On-line Routing Algorithm for MPLS Networks , 2003, Telecommun. Syst..

[6]  Wai Sum Lai,et al.  Maximum Allocation Bandwidth Constraints Model for Diffserv-aware MPLS Traffic Engineering , 2005, RFC.

[7]  Olivier Bonaventure,et al.  A performance evaluation of BGP‐based traffic engineering , 2005, Int. J. Netw. Manag..

[8]  Steve Uhlig,et al.  Providing public intradomain traffic matrices to the research community , 2006, CCRV.

[9]  Jordi Domingo-Pascual,et al.  An open source traffic engineering toolbox , 2006, Comput. Commun..

[10]  B. Quoitin,et al.  The Interaction of IGP Weight Optimization with BGP , 2006, International Conference on Internet Surveillance and Protection (ICISP’06).

[11]  Guy Leduc,et al.  A scalable and decentralized fast-rerouting scheme with efficient bandwidth sharing , 2006, Comput. Networks.

[12]  Guy Leduc,et al.  How Well Do Traffic Engineering Objective Functions Meet TE Requirements? , 2006, Networking.