关键词: 动态资源管理, 有效带宽理论, 预测技术, 流量管理策略

Abstract:

The static resource allocation algorithm based on the theory of effective bandwidth was introduced firstly. When the real behavior of Internet traffic is taken into account, this algorithm is inefficient. So here a dynamic resource management algorithm based on Internet traffic prediction was proposed to take the place of it. This algorithm was applied to a Differentiated Service network, and implemented on the boundary node. The basic idea under this algorithm was to allocate resources (bandwidth/buffer size) between different kinds of flows dynamically, according to the result of prediction. At last, ns-2 was used to run the simulation and find out the lost packets rate and output link utilization of this algorithm, which were superior to those of the static resource allocation algorithm.

Key words: dynamic resource management, effective bandwidth theory, prediction techniques, traffic policing