Admission control for inter-domain real-time traffic originating from differentiated services stub domains

Abstract

Differentiated Services (DiffServ) are seen as the technology to support Quality of Service (QoS) in IP networks in a scalable manner by allowing traffic aggregation within the engineered traffic classes. In DiffServ domains, admission control additionally needs to be employed in order to control the amount of traffic into the engineered traffic classes so as to prevent overloads that can lead to QoS violations. In this paper we present an admission control scheme for inter-domain real-time traffic originating from DiffServ stub domains; that is real-time traffic originating from end-users connected to a DiffServ stub domain towards destinations outside the geographical scope of that domain. By means of simulations we show that our scheme performs well and that it compares favorably against other schemes found in the literature. © Springer-Verlag Berlin Heidelberg 2007.