期刊
JOURNAL OF LIGHTWAVE TECHNOLOGY
卷 41, 期 19, 页码 6119-6125出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2023.3282447
关键词
Failure localization; availability; Q-drops; field trial; monitoring; optical networks
This article proposes a reliable and easy-to-deploy method for localizing failures in optical networks. By aggregating raw monitoring data from coherent transponders, strategic insights into network health can be generated.
We propose a reliable and easy-to-deploy method for localizing failures in optical networks with low added complexity. It essentially relies on the aggregation of raw monitoring data from coherent transponders; data readily accessible through streaming telemetry in modern optical networks. We first verify the reliability of our algorithm through extensive simulations over a European topology under realistic conditions. Then, we apply it to field data from a backbone network carrying live traffic. Here, we show how failure localization allows to generate strategic network health insights regarding link failure probabilities and mean time to repair. We notably underline the involvement of Q-drops in strong and localized deviations of both parameters.
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