一种基于IP路由协议的流量工程策略

基于传统IP路由协议的流量控制方法可降低系统复杂度并同时降低运营成本。提出一种新的基于传统路由协议的流量控制方法。该方法首先根据特定准则计算各连接的权值，然后根据一种改进的最短路径选择策略确定路径。还提出一种动态需求下的权值调整策略。实验结果显示，在网络流量需求改变时，只需调制部分连接的权值即可达到和最佳路由相近的性能．从而可大大降低因权值调整产生的负载。

Practical Traffic Engineering Based on Treaditional IP Protocol

Traffic engineering based on traditional IP routing is easy-to-deploy and overly economical. A new traffic engineering method is proposed based on traditional IP routing. The method first calculates the link weights based on a given criterion. Then a modified Open-Shortest-Path-First (OSPF) algorithm is proposed to calculate the paths. Dynamic demand is also considered. A new method is proposed for adapting the link weights when the traffic demand changes, in which only partial links weights are changed when the demand change. Simulation results show the proposed modified OSPF method has similar performance with the optimal traffic allocation method, even in the case that only partial link weights are changed.