End-to-end QoS management proposal for the ITU-T IMS/NGN architecture

The centralized management of the QoS in NGNs is currently one of the main lines of research in the networking sector. One of the tasks of the ITU-T organisation in this area is to develop a global architecture capable of managing end-to-end services to be used on future specifications. This paper presents a signalling architecture proposal for the end-to-end QoS management conforming the early ITU-T specifications for IMS/NGN networks, focusing on the transport sub layer. The viability of the architecture has been validated through the implementation of a GNU/Linux real testbed.