Searching Path for Delay Protection Services of Fiber Channel Based on Security and Risk Equalization

For scientifically distributing paths of relay protection services for power optical-fiber channel, ensuring the security of each path, meanwhile, reducing the amount of links that carry too many services, the improved Dijkstra algorithm is offered. As a preparation for path selection, the security are mapped to the weights of nodes and links; to avoid some links overloading, modify link weight by a dynamic weight update function during the search process; and the degree of security risk equalization is proposed to assess the security status of the whole network.