Next generation Internet should offer support for end to end (E2E) services with quality of services (QoS) guarantees. One method to solve the E2E QoS problem in scalable manner is to establish multi-domain E2E aggregated paths having controlled QoS characteristics. The resources for these pipes should be allocated and installed in each domain by the domain managers. This paper studies several allocation methods, from the point of view of resource utilization degree versus the amount of required signalling when considering a whole chain of domains. The proposed method is currently implemented in a research project.

Keywords: IP, Quality of service (QoS), Multidomain, Aggregation, Resource allocation.