专用网OSPF链路摆动抑制算法

该文提出了OSPF(openshortestpathfirst)链路摆动抑制算法以克服由于无线信道误码率较高而引起的专用网链路摆动问题。该算法核心思想是在保证网络连通性的基础上,评估所有链路性能并对不稳定链路进行动态抑制。链路在被抑制的状态下不参加路由计算。仿真结果表明:在算法参数设置合理的情况下,链路状态广播更新数量和网络同步运行时间等指标可分别改善约35%和10%。OSPF链路摆动抑制算法简单可行,适应于专用网自身特点,可有效提高网络整体性能。

OSPF link flap damping algorithm for the private network

This paper presents an open shortest path first (OSPF) link flap damping algorithm to solve the link flap problem triggered by the high packet loss rate of the wireless links in the private network. Ensuring the network connectivity, the algorithm evaluates the stability of all links and dynamically suppresses poorly behaved links. The suppressed links won't be used in the routing calculations. Simulation results indicate that with appropriate algorithm parameters, the number of link state advertisements updates can be reduced by approximately 35% with the time during which the databases in all the routers are synchronized increased by about 10%. The OSPF link flap algorithm is simple and easily implemented and it adapts to the characteristics of the private network to effectively improve overall performance.