An Integrated Approach for DiffServ Multicasting

Coexistence of multicasting and DiffServ is promising since the DiffServ module can provide a scalable QoS framework and multicasting can save network resources. Although several approaches of multicasting in DiffServ networks have been proposed in recent years, most of them concern only one or two problems that existed in this research area. In this paper, we propose an integrated approach for DiffServ multicasting called DMM, which not only solves NRS and scalability problem, but also alleviates inter-class fairness problem and improves link utilization ratio through link resource allocation strategy and multi-class multicast routing. The performance of DMM is proved by experimental results we obtained in this paper.