01510nas a2200157   4500008004100000245004900041210004900090260001700139300001500156520099200171100002101163700002201184700001901206700002201225856010501247       2004                        eng d00aQuality of Service aspects in an IPv6 domain0 aQuality of Service aspects in an IPv6 domain  c25 - 29 July  a 238 - 2453 aDuring the last years 2 Quality of Service architectures (IntServ and DiffServ) have been proposed and evaluated. The DiffServ architecture has proved its ascendancy and some services have already been proposed and deployed on IPv4 domains. But the usage of IPv6 protocol creates new challenges, as the QoS mechanisms that are currently supported for IPv6 in most implementations are fewer (or different) compared to IPv4 and in addition the whole network’s behaviour is different. So, as a result the QoS services should be designed and evaluated again. This paper describes a QoS service on an IPv6 domain that aims to service aggregates of real time traffic with minimum delay, jitter and packet loss. In addition, it contains results from the experiments in our IPv6 network that took advantage of the QoS mechanisms. This QoS service uses the Modular QoS CLI (MQC) mechanism and especially the Low Latency Queue feature (LLQ) in order to treat packets from real time applications.1 aBouras, Christos1 aGkamas, Apostolos1 aStamos, Kostas1 aPrimpas, Dimitris  uhttp://telematics.upatras.gr/telematics/publications/quality-service-aspects-ipv6-domain?language=el