Inter-domain adaptive traffic engineering for IP differentiated services MPLS-based networks

With the dramatic increase of the capacity of the Internet core, it has become an inherently challenging task to provide strict delay bound guarantees to applications such as multimedia, voice over IP, interactive distance learning, and interactive distribution simulations such as those based on distributed interactive virtual environments. The provision of a seamless integration of these applications into the broadband networks has been a subject of intensive research for the last few years. In addition, with the globalization of the telecommunications markets, service providers are deemed to inter-operate, cooperate, and possibly compete to ensure that over all performance metrics are met. In this paper, we propose an intelligent Traffic Engineering approach in a Differentiated Services model for end-to-end packet delay assurance in an inter-domain environment assuming an underlying Multi-protocol Label Switching (MPLS) network infrastructure.