Master Thesis - 2009

Recently, with the Internet transforming into multimedia and high-speed, various traffic requiring different QoSs (qualities of service) will co-exist in the network. Also, classified service based on Diff-Serv (Differentiated Service), MPLS (Multi-Protocol Label Switching) and so on, have come into wide use. In this paper, the class-based QoS control scheme by flow management in the Internet router is proposed, considering the environment where plural ports share one buffer. I aim at the realization of differentiated services and the dissolution of the buffer occupation by specific flow.

The performance of our proposal is evaluated by computer simulation. As a result, it is confirmed that the class-based priority has been attained. Also, the problem of buffer occupation by specific flow is dissolved.