专用网OSPF协议性能优化研究

为了提升专用网在无线信道环境下的整体性能,该文对开放最短路径优先(open shortest path first,O SPF)协议进行了优化研究。研究主要包括单区域机制、相关数据包简化、状态机简化以及协议关键参数设置。仿真结果表明:在恶劣信道环境中,路由表平均计算次数可减少81%,协议带宽平均损耗可降低80%,而网络稳定工作时间可延长2倍。针对O SPF标准协议的优化设计简单可行,适应于专用网自身特点,可有效提高网络性能。

OSPF protocol optimization for private networks

This paper describes an optimization scheme to enhance the performance of the open shortest path first(OSPF) protocol for private networks,especially with bad wireless channel conditions.The optimization scheme focuses on aspects of the single-area scheme,packet format simplifications,modifications of the important state machines,and setting of the key protocol parameters.Simulations indicate that the average time for routing table calculations can be reduced by 81% and the average protocol bandwidth consumptions can be reduced by 80%.Moreover,the stable network working time can be doubled when link bit error rates is high.Therefore,the optimization scheme best adapts to the special characteristics of the private network to effectively enhance the overall network performance.