Enhancing dependability in Future Internet systems by applying over-provisioning centric resource allocation control

Attempts by the research community to meet the expectations arising from dependable and scalable networking capabilities in Future Internet, specially in terms of native Quality of Service (QoS) support for multimedia multi-user sessions, have resulted in mechanisms like the Multi-User Aggregated Resource Allocation (MARA). MARA adopts an over-provisioning centric QoS control architecture to enforce class-based surplus bandwidth reservations and multicast aggregation trees in a single manner, and without instant signaling events. The results of MARA have been promising in comparison to other existing proposals. However MARA is not feasible for most current Internet access providers, as well as Future Internet systems, since it cannot be applied in scenarios with multiple ingress routers. In view of this, this paper proposes the Multi-User Aggregated Resource Allocation Multi Ingress (MARA-MI), which extends MARA with capabilities to deal with correlate multicast aggregated paths and assist the adaptation of the over-reservation patterns at all the ingress nodes to avoid the possibility of a QoS violation occurrence, maintaining a good level of quality over time in multi-user sessions.