根据信号历史记录值，通过特定的预测算法可以获得链路失效时间的预测值。
The prediction is based on the signal history of a link and activated by a prediction algorithm.
仿真表明，DSPP不仅能完全保护双链路失效，并且能在资源利用率、阻塞率和保护切换时间之间进行性能折衷。
The results show that DSPP not only can completely protect double-link failures but also can make the tradeoffs between the resource utilization ratio, blocking ratio, and protection-switching time.
而路由的失效时间等于构成该路由的所有链路的失效时间的最小值。
The route broken time is equal to the minimum broken time of the links that construct the route.
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