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三角路由和路由优化都应用于移动IP,而在MIPv6中默认采用路由优化方式;三角路由控制开销少,但是没有优化路径,路由优化尽管优化了路径,但是也引入了很多额外的开销。本文在分析两者优缺点的基础上,针对影响路由开销的几个重要参数进行分析和计算,提出以网络切换控制开销与数据传输开销的比值为参考,选择较好路由策略的方案。理论分析和模拟表明该方案能显著减少控制开销和提高路由性能。
Triangular routing and route optimization are all applied to Mobile IP, whereas route optimization is the default in MIPv6. Triangular route control is less costly, but there is no optimal route. Route optimization introduces a lot of extra overhead despite the optimized route. Based on the analysis of the advantages and disadvantages of both, this paper analyzes and calculates several important parameters that affect the routing overhead, and proposes a scheme of selecting a better routing strategy by taking the ratio of network switching control overhead and data transmission overhead as a reference. Theoretical analysis and simulation show that this scheme can significantly reduce control overhead and improve routing performance.