A proposal for interdomain QoS routing based on distributed overlay entities and QBGP

Abstract. This paper proposes a novel and incremental approach to Inter-Domain QoS Routing. Our approach is to provide a completely distributed Overlay Architecture and a routing layer for dynamic QoS provisioning, and to use QoS extensions and Traffic Engineering capabilities of the underlying BGP layer for static QoS provisioning. Our focus is mainly on influencing how traf-fic is exchanged among non-directly connected multi-homed Autonomous Sys-tems based on specific QoS parameters. We provide evidence supporting the feasibility of our approach by means of simulation