WDM网状网一种考虑路由陷阱的共享通路保护

A shared-path protection with considering trap of routing in WDM mesh networks

研究了WDM网状网中的共享通路保护问题,综合考虑了负载均衡、资源利用率和路由跳数的影响因素,并考虑了路由选择时陷阱问题的解决方案,提出了一种新的动态共享通路保护LRHT-SPP启发式算法。LRHT-SPP在假设所有的链路都是SRLG分离的条件下,根据业务等级的不同动态的设置参数来调节路由跳数在链路代价中所占的比例,同时又解决了路由选择中存在的一种陷阱。仿真实验表明LRHT-SPP不仅能使网络业务更均衡,资源利用率更少,而且因为解决了陷阱问题使阻塞率明显降低。

This paper studies the shared-path protection with considering trap of routing in WDM mesh net-works, consideres the impacts of load balancing, resource utilization ratio and hops of routing,and proposes a new dynamic shared-path protection heuristic algorithm called LRHT- SPP. On the condition that all links are assumed to be SRLG disjoint,LRP-SP dynamic sets different parameters to adjust the hops of routing in the proportion of the prince of links, also solves the trap of routing. The simulation results show that LRHT-SPP not only can make the connection more balanced, with less resource utilization,but also can solve the trap so that the blocking rate is reduced.