It is a challenge to achieve the end-to-end QoS assurance for Grid applications in the dynamic and complex Grid environment. A Grid resource reservation model is proposed in this paper. The mobile agent implemented method of the model is given. The simulation environment of it is designed and implemented under RSVP/ns on linux. The result of simulations shows that it can flexibly adapt to the changing of the environment and achieve better end-to-end QoS assurance both of computing resources and network resources in Grid than the traditional way.
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