光网络中基于流量均衡的SRLG分离路由算法

An algorithm based on traffic balancing of SRLG-disjoint diverse routing in optical network

基于共享风险链路组(SRLG,shared risk link group)和流量均衡的概念,研究了光网络抗毁设计中基于流量均衡的SRLG尽量分离路由问题,利用网络流量的实际分布来评价链路和SRLG重要性,提出基于流量均衡的SRLG分离算法TBDR。通过计算机仿真表明,TBDR算法性能优于保护路优先算法,该算法能有效降低网络阻塞率,提高网络资源利用率和网络抗毁能力,达到流量均衡的目标。

A traffic balancing diverse routing（TBDR） method is proposed, which can find two approximately shared risk link group（SRLG） disjoint paths in WDM mesh networks. TBDR chooses a balance path through evaluating the load of links and the criticality of SRLG. Comparisons are made between TBDR and the active path first（APF） algorithm. Simulation results show that TBDR can effectively reduce the blocking probability and enhance the resources utilization. So the TBDR can achieve the traffic balancing and improve the network survivability.