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Stackable ROADMs (S-ROADMs) have been proposed for use in regional IP-over-CWDM networks. The S-ROADM can be constructed by connecting modules with different wavelengths required in the node. The experimental results clarified that the S-ROADM could mux and demux the wavelengths successfully, and gave no limit to the passing-through wavelengths, making the network be wavelength transparent. Contrary...
A static and OSPF routing integration scheme has been proposed to use 2 types of lightpaths: i.e. point-to-point and one-by-one lightpaths in IP-over-CWDM networks. The 2 types of lightpaths cause multipaths with different routing: i.e. static and OSPF routings, and therefore, a suitable scheme is necessary to assure that packets are routed by the shortest route, even if the routings are different...
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