Vitor Basto, Vasco Freitas
Universidade do Minho
Departamento de Informática
P-4710-057 Braga, Portugal
Tel.: +351 253 604430
Fax.: +351 253 604471
E-mail: {vbasto,vf} (at) di.uminho.pt
This paper presents a multimedia transport service based on distributed QoS (quality of service) management mechanisms acting along the communication path. The distribution model is supported by a simple active networking paradigm for IP based networks. On demand QoS adaptation is performed by transport agents located along the network path when required by receivers. The transport service provided, targets tolerant/adaptive multimedia applications using network services with QoS uctuations. It is on wide area networking scenarios (high delay*bandwidth products) that important QoS optimisation can be achieved for application layer parameters.