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1 Journal of Telecommunications and Information Technology

1 2009

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DiffServ Aware MPLS Traffic Engineering for ISP Networks: State of the Art and New Trends

Toguyéni A., Korbaa O.

Journal of Telecommunications and Information Technology

2009

nr 1

5-13

In the recent ten years, with the development of new applications through Internet such as multimedia or networked control applications, users need more and more quality of service (QoS). However, the requested QoS is not the same depending on the application. Most of the new models to manage internet traffic are based on specific QoS criteria which should be optimized. This paper presents main multiprotocol label switching (MPLS) approaches such as MPLS adaptive traffic engineering (MATE), load distribution in MPLS (LDM) and load balancing over widest disjoints paths (LBWDP) that are new models for traffic engineering. It also introduces periodic multi-step (PEMS) algorithm that adapts the offered quality depending on the class of the routed traffic.