Single-link failure detection in all-optical networks using monitoring cycles and paths
IEEE/ACM Transactions on Networking (TON)
Distributed multi-failure localization protocol for all-optical networks
ONDM'09 Proceedings of the 13th international conference on Optical Network Design and Modeling
A novel approach for failure localization in all-optical mesh networks
IEEE/ACM Transactions on Networking (TON)
Active monitoring and alarm management for fault localization in transparent all-optical networks
IEEE Transactions on Network and Service Management
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Based on the knight's tour theory, a novel link failure localization mechanism is proposed in the paper. Firstly, degree aware node splitting method is introduced. Then, the nodes and links of the network are mapped on the squares and steps of the corresponding chessboard. Subsequently, the probing signals are sent periodically to detect the network status in real-time manner. Once the link failure is detected, according to returned fault information, the link failure is located by searching the static mapping table. In the case of achieving failure localization of any link failure, the localization time and cover length of links are analysis. Numerical results show that the link failure can be located effectively and rapidly by the proposed strategy with less network resources utilized.