基于SOSPA算法的分组传送网保护机制实验系统

Experiment system for testing protection mechanism in packet transport network based on SOSPA algorithm

总结了已有分组传送网的保护机制,着重分析了两种典型的分组传送网保护倒换的算法(DP-OSPF算法和SOSPA算法),采用SOSPA算法设计并实现了一个模拟分组传送网保护机制的光通信系统,最后根据实验结果分析了该系统的信号传输以及故障恢复能力。

Protection mechanisms designed for packet transport network （PTN） were summarized and two typical algorithms named dual-path OSPF （DP-OSPF） routing algorithm and SRLG-disjoint-based Overlapped segment Shared Protection Algorithm （SOSPA） were addressed in depth. In addition, an optical communication system was devised to simulate the protection switching mechanism of PTN which adopted the SOSPA algorithm. Finally, both the performance of signal transmission and failure recovery ability were discussed according to the experiment results.