This paper proposes an approach to Traffic Engineering that uses Differentiated Services (diffserv) and Multi-Protocol Label Switching (MPLS) to provide quantitative QoS guarantees over an IP network. An algorithm that determines QoS-constrained routes is proposed and a framework that uses such an algorithm is outlined. This framework removes the responsibility of QoS guarantees from the core nodes, thereby reducing their complexity.
Richard Rabbat, Kenneth P. Laberteaux, Nirav Modi,