RSVP as a user signaling protocol in a multilayer bandwidth broker architecture

A lot of research efforts have recently focused on RSVP and the DiffServ architecture to provide end-to-end Quality of Service in the Internet. This paper presents a multi-layer bandwidth broker architecture, based on the DiffServ paradigm that uses RSVP as a user signaling protocol. The paper describes the necessary operations performed to support RSVP, both in terms of the architecture (functionality) and in terms of QoS management (mapping of the traffic descriptors of RSVP and the new architecture). The purpose is to step into design and implementation details that are not covered by RFCs, and to explain in brief what are the actual design decisions adopted by the authors.