01423nas a2200145   4500008004100000245006000041210005900101300003300160520088800193100002101081700002201102700001901124700002201143856011201165       2006                        eng d00aIPv6 Deployment: Real Time Applications and QoS Aspects0 aIPv6 Deployment Real Time Applications and QoS Aspects  aVol. 29, No. 9,  1393 - 14013 aThis paper gives an overview of the issues related to the QoS mechanisms under IPv6 and the transition of applications to the new Internet protocol. We describe the implementation and testing of a QoS service on IPv6 networks, which is based on the DiffServ architecture (expedited forwarding) and provides strict priorities to packets that are produced from real time applications. The service was implemented and tested at the 6NET large-scale IPv6 network, and additional advanced testing was performed in a local testbed. We present and analyze the results from our tests under a number of different scenarios. In addition, we focus on issues regarding application transition to IPv6 and we briefly discuss as a case study the transition of OpenH323 protocol stack to support IPv6. We also discuss the usage and the expected impact of the new Flow Label field in the IPv6 header.1 aBouras, Christos1 aGkamas, Apostolos1 aStamos, Kostas1 aPrimpas, Dimitris  uhttp://telematics.upatras.gr/telematics/publications/ipv6-deployment-real-time-applications-and-qos-aspects