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For large scale multi-domain elastic optical networks, we propose a combination of distributed and centralized control architecture (DC-CA) based on stateful hierarchical PCE. Experiment results are presented from DC-CA testbed and automated provisioning and recovery time of multi-fault are reported.
The hierarchical routing and wavelength assignment problem in Automatic Switched Optical Network (ASON) is researched. Based on our analysis, three adaptive algorithms called MLLR (Multi-Layer Least Loaded Routing Algorithm), WMLCR (Wavelength-graph-based Multi-Layer Least Congestion Routing Algorithm) and BMR (Backtracking-based Multi-Layer Routing Algorithm) are proposed. A platform named AHORSP...
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