针对基于开放式最短路径优先(OSPF)协议的电力通信网络中的流量负载不均衡问题,提出两级优化的OSPF(TSO-OSPF)算法,分别对OSPF区域内和区域间进行流量均衡.算法采用带宽利用率和时延作为链路权重,根据路由器的进出总流量,将流量过大的分支分解到多个路由器,实现最大流最小化,从而解决电力通信网区域内部和边界路由器的流量不均衡问题.仿真实验表明:与OSPF算法相比,TSO-OSPF算法有效均衡了网络的流量,并且降低了10％左右的丢包率.%To solve the traffic load-imbalance problem in electric power communication networks based on Open Shortest Path First (OSPF) protocol,an efficient Two-Step Optimized OSPF Protocol (TSO-OSPF) algorithm was proposed to balance the traffic in intra-area and inter-area of OSPF respectively.The bandwidth utilization and delay were adopted as link weights,the inward and outward traffic of a router was considered,the overloaded branches were decomposed into multiple routers to minimize the maximum traffic flow,thus the traffic-imbalance problem of internal and boundary router in the electric power communication networks was solved.The simulation results show that the TSO-OSPF algorithm can effectively balance the traffic in the network and reduce the packet loss rate by about 10％ compared with the OSPF algorithm.
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