A meta-model for multiobjective routing in MPLS (Multiprotocol Label Switching) networks

A meta-model for multiobjective routing in MPLS (Multiprotocol Label Switching) networks

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Article ID: iaor20091141
Country: Germany
Volume: 16
Issue: 1
Start Page Number: 79
End Page Number: 105
Publication Date: Mar 2008
Journal: Central European Journal of Operations Research
Authors: , ,
Keywords: internet
Abstract:

MPLS (Multiprotocol Label Switching) enables the utilisation of explicit routes and other advanced routing mechanisms in multiservice packet networks, capable of dealing with multiple and heterogeneous QoS (Quality of Service) parameters. Firstly the paper presents a discussion of conceptual and methodological issues raised by multiobjective routing optimisation models for MPLS networks. The major contribution is the proposal of a multiobjective routing optimisation framework for MPLS networks. The major features of this modelling framework are: the formulation of a three-level hierarchical routing optimisation problem including network and service performance objectives, the inclusion of fairness objectives in the different levels of optimisation and a two-level stochastic representation of the traffic in the network (traffic flow and packet stream levels). A variant of the general model for two classes of traffic flows, QoS traffic and Best Effort traffic, is also presented. Finally a stochastic teletraffic modelling approach, underlying the optimisation model, is fully described.

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