The paper analyses two routing models in IP networks, i. e. , the user equilibrium model and the system optimal model.

分析了IP网络中的两种路由模型：用户平衡模型和系统最优模型。

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Simulation result shows the combination agent deployment model can make overlay network routing achieve optimal performance on the basis of meeting the combined service application requirements.

实验结果表明，组合代理部署模型能在满足服务组合应用需求的基础上，使覆盖网络的路由性能达到最优。

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