Distributed multi-failure localization protocol for all-optical networks
ONDM'09 Proceedings of the 13th international conference on Optical Network Design and Modeling
Fault detection and localization scheme for multiple failures in optical network
ICDCN'08 Proceedings of the 9th international conference on Distributed computing and networking
M2-CYCLE: An optical layer algorithm for fast link failure detection in all-optical mesh networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
A novel approach for failure localization in all-optical mesh networks
IEEE/ACM Transactions on Networking (TON)
Minimal monitor activation and fault localization in optical networks
Optical Switching and Networking
Localizing link failures in all-optical networks using monitoring tours
Computer Networks: The International Journal of Computer and Telecommunications Networking
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Fault identification and localization problems in optical networks have become crucial. Due to network transparency and high data rates, optical networks are vulnerable to sophisticated attacks on the physical infrastructure [5], and hence require adequate fault monitoring in orderto accurately identify and locate network failures. In transparent optical networks, faults may propagate to various parts of the network from the origin, and multiple alarms can be generated for a single failure. In order to reduce the number of redundant alarms, simplify fault localization, as well as lower financial investment in network monitoring equipment, fault monitor placement should be optimized for a given network. In this paper, we formulate a problem on the optimal placement of network monitoring devices and propose a solution approach. First we provide a brief summary of available physical-layer monitoring devices, afterwhich we present a scheme for optimal monitor placement.