基于负载平衡的多域光网络路由机制

Routing Mechanism in Multi-domain Optical Networks Based on Load-balancing

基于软管模型,引入Valiant负载平衡方案,提出一种基于负载平衡的多域光网络路由机制,采用融合业务量疏导策略的启发式路由算法,在业务量矩阵不确定的情况下为业务请求进行路由,使网络资源配置达到最优。对提出的机制进行了仿真实现并与现有机制进行了性能对比,结果表明,该机制不仅减少了使用端口数,而且降低了阻塞率,是可行和有效的。

Under the hose model, the valiant load-balancing method was introduced, ana a routing mechanism in multi-domain optical networks based on load-balancing was proposed. A heuristic method with traffic grooming strategy integrated was used to do routing for traffic requests under uncertain traffic matrix, in order to make the network resource allocation optimal. Performance evaluation was conducted on this propose mechanism and certain existing one. The simulation results show that the proposed mechanism can reduce the number of the used ports and lower the blocking rate, and thus it is practical and effective.