End-to-End QoS Resource Management for an IP-Based DWDM Access Network (draft)

The always increasing use of broadband Internet and complex multimedia applications is pushing fiber closer and closer to the homes. Within the European IST HARMONICS project this demand for bandwidth and the desire to stimulate the convergence of last mile access technologies is tackled by the developed Optical Access Feeder Network and accompanying Resource Management framework. To cope with lack of bandwidth in the access and last mile networks and the different needs of applications and users, the developed management system provides end-to- end QoS (Quality-of-Service) and integrates multiple technologies. In this paper a detailed overview of the end-toend QoS management framework and novel timeslot/wavelength MAC protocol for the optical feeder network is given. Endto-end QoS is based on Differentiated Services (DiffServ) at Layer 3, various QoS supporting technologies at Layer 2 and QoS mappings between both layers. Finally we will focus on the field trial results of the HARMONICS project and give some guidelines for possible problems and solutions in this area.