基于共享通道保护的容量优化设计算法

Capacity Placement Design Algorithm Based on Shared-path Protection

对于给定业务,宽带传输网所需的总传输容量是影响网络成本的重要因素。提出了一种基于共享通道保护的容量优化设计算法MSC-JOCP,通过动态调整链路权值的方法,在“负载均衡”的前提下优化地选择业务工作路由和保护路由,同时保证不同业务的保护路由之间可以最大程度地共享备份资源。仿真结果表明,算法能有效地提高网络的资源利用率,降低网络总传输容量。

the total transmission capacity required by a transport network to satisfy demand and protect it from failures contributes significantly to its cost. This paper presents a design algorithm MSC-JOCP, which is based on shared-path protection, to address the Jointly Optimized Capacity Placement problem in broadband mesh networks. The key idea of the algorithm is to dynamically modulate the metrics of the network＇s spans, so as to choose working and protecting routes given attention to load balance as well as maximally share the spare capacity. Simulation results show that the developed scheme effectively reduces the required total capacity and enhances the network resource utility.