Multiple link failure recovery in survivable optical networks |
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Authors: | Xiaofei Cheng Xu Shao Yixin Wang |
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Affiliation: | (1) Institute for Infocomm Research (IIR), 21 Heng Mui Keng Terrace, Singapore, 119613, Singapore |
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Abstract: | Survivability is of critical importance in high-speed optical communication networks. A typical approach to the design of survivable networks is through a protection scheme that pre-determines and reserves backup bandwidth considering single/double link failure scenarios. In this article, a greedy algorithm is presented to reserve backup bandwidth considering multiple (F > 2) link (SRLG) failure scenarios. A bandwidth-saving joint selection scheme of working and protection paths is presented for protection against random multiple-link failures under dynamic traffic. Simulation shows that the algorithm can achieve maximum sharing of backup bandwidth for protection against random multiple-link failure with significant amount of bandwidth saving. |
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Keywords: | Survivability Protection Greedy algorithm |
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