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为解决WDM网状网的波带保护问题,提出一种基于多层OXC结构的动态专用波带保护(DDWP)算法.该算法以最小化可选路径对端口占用总数为第一优化目标,以路径对所经链路总数最小为第二优化目标.在不同负载动态业务下对DDWP算法进行了仿真研究.结果表明:DDWP算法有利于网络负载均衡和提高端口利用率,降低了全网阻塞率.
In order to solve the problem of waveband protection in WDM mesh networks, a Dynamic Dedicated Band Protection (DDWP) algorithm based on multi-layer OXC architecture is proposed, which takes the total number of ports occupied as the first optimization objective And the path is the second optimization target with the smallest total number of links.The DDWP algorithm is simulated under different load dynamic services.The results show that DDWP algorithm is beneficial to network load balancing and port utilization and reduces the blocking rate .