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Migrating to a Next Gen WDM core network

The main goal of this study is to examine the different options that arise to build a modern core transport network, considering the short to medium term evolutions planned by the manufacturers. After a short review of possible WDM network designs, a techno-economic analysis allows for benchmarking different architectural scenarios, providing some guidelines in building a future proof WDM core network. At last we highlight some of the challenges to relieve when migrating to an agile WDM infrastructure.