Performance of Elastic and Mixed-Line-Rate Scenarios for a Real IP over DWDM Network with more than 1000 Nodes [Invited]

01 October 2013

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A real network with 1113 physical nodes and 1+1 protection is evaluated by varying the fraction of core/metro nodes to find the optimum network size regarding cost and power efficiency of elastic in comparison to MLR IP over DWDM networks. No significant benefit for any of the network concepts can be deduced, neither for a hierarchical/flat nor for a MLR/elastic network concept. On the other side, the results confirmed that the use of the flex grid is beneficial for both, MLR and elastic network scenarios.