Distributed admission control

This paper describes a framework for admission control for a packet-based n etwork where the decisions are taken by edge devices or end-systems, rather than resources within the network. The decisions are based on the results of probe packets that the end-systems send through the network, and require only that resources apply a mark to packets in a way that is load dependen t, One application example is the Internet, where marking information is fe d back via an ECN bit, and we show how this approach allows a rich QoS fram ework fur flows or streams, Our approach allows networks to be explicitly a nalyzed, and consequently engineered.