Analysis of the End-to-End Protection and Restoration Algorithm in the IP over WDM Network
ICOIN '02 Revised Papers from the International Conference on Information Networking, Wireless Communications Technologies and Network Applications-Part I
Survivability in IP-over-WDM networks
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Dynamic protection using integrated-routing approach in IP-over-WDM networks
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IEEE/ACM Transactions on Networking (TON)
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Dynamic routing with inaccurate link state information in integrated IP-over-WDM networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
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ONDM'09 Proceedings of the 13th international conference on Optical Network Design and Modeling
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ICICS'09 Proceedings of the 7th international conference on Information, communications and signal processing
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Optical Switching and Networking
Differentiated multi-layer integrated routing in IP over WDM networks
Computer Communications
Protocols for rapid restoration in WDM optical networks
Computer Communications
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This article presents a simple integrated provisioning/protection scheme to dynamically allocate restorable bandwidth guaranteed paths in IP over WDM networks. A guaranteed restorable path implies that a flow of data is successfully routed if both an active path and another alternate link-disjoint path are found at the same time. Unlike the conventional approach, where the IP and WDM layers are not aware of each other, the new scheme takes advantage of the development in generalized multi-protocol label switching (GMPLS) to provide integrated end-to-end survivability by incorporating network state information from both layers (e.g., the cost information in physical links, the bandwidth usage on each lightpath, and intermediate router speed) into protection path allocation. Simulation results are used to evaluate the performance of the new scheme and show that the proposed protection approach can efficiently improve the network utilization, and deliver reliable services