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Optical layer monitoring schemes for fast link failure localization in all-optical networks

机译:用于全光网络中快速链路故障定位的光层监控方案

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摘要

Optical layer monitoring and fault localization serves as a critical functional module in the control and management of optical networks. An efficient monitoring scheme aims at minimizing not only the hardware cost required for 100{%} link failure localization, but also the number of redundant alarms and monitors such that the network fault management can be simplified as well. In recent years, several optical layer monitoring schemes were reported for fast and efficient link failure localization, including simple, non-simple monitoring cycle (m-cycle) and monitoring trail (m-trail). Optimal ILP (Integer Linear Program) models and heuristics were also proposed with smart design philosophy on flexibly trading off different objectives. This article summarizes those innovative ideas and methodologies with in-depth analysis on their pros and cons. We also provide insights on future research topics in this area, as well as possible ways for extending the new failure localization approaches to other network applications. © 2005 IEEE.
机译:光层监视和故障定位是控制和管理光网络的关键功能模块。一种有效的监视方案不仅旨在最大程度地减少100%故障链路本地化所需的硬件成本,而且还旨在最大程度地减少冗余警报和监视器的数量,从而也可以简化网络故障管理。近年来,已报告了几种用于快速有效链路故障定位的光学层监视方案,包括简单,非简单的监视周期(m-cycle)和监视路径(m-trail)。还以智能设计理念提出了最佳的ILP(整数线性程序)模型和启发式方法,可以灵活地权衡不同的目标。本文总结了这些创新思想和方法,并对其优缺点进行了深入分析。我们还将提供有关该领域未来研究主题的见解,以及将新的故障定位方法扩展到其他网络应用程序的可能方法。 ©2005 IEEE。

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