Project Title : A QUILA Adaptive Resource Control for QoS Using an IP - based Layered Architecture

This deliverable specifies the traffic handling mechanisms for the second trial. Traffic handling in AQUILA is composed of four related mechanisms operating at different time scales: provisioning (days to weeks), resource pools (hours), admission control (seconds to minutes), traffic control (milliseconds). Keyword List: AQUILA, QoS, Internet, Traffic Control, Admission Control, MBAC, Provisioning AQUILA IST-1999-10077-WP1.3-COR-1302-PU-O/b2 Specification of traffic handling for the second trial Page 2 of 105 Executive Summary This deliverable provides the specification of traffic handling for the second trial. Three main objectives are covered: 1) to fix the shortcomings in first trial specification, taking into account the valuable experience of the implementation work and especially of the trials 2) to enhance the first trial specification with new outstanding features: • Measurement Based Admission Control • Control loops from Measurement into Provisioning and Resource Pool • Inter-domain Resource Reservation 3) to provide a critical analysis and to review some aspects of first trial specifications: • Choice of network services and traffic classes • Scheduling and queue management mechanisms The most important innovations in second trial are the introduction of feed-back in the traffic handling and the introduction of inter-domain resource management. In the first trial specification, a feed-forward relation between the Traffic Handling components (Provisioning, Resource Pools, the Admission Control, and the Traffic Control) was defined. The measurement architecture was only used to have a monitoring of the network status. In the second trial architecture the measurements are reported in real time to the Admission Control and to Provisioning, realising a Measurement Based Admission Control and a Control Loop from Measurements to Provisioning. The inter-domain resource reservation is supported by defining proper damping mechanisms. These mechanisms avoid the propagation of resource reservation across autonomous systems in order to achieve a scalable solution. AQUILA IST-1999-10077-WP1.3-COR-1302-PU-O/b2 Specification of traffic handling for the second trial Page 3 of 105 Table of