OMNeT++ simulation and dataset formatting

Hi,

I would like to generate simulation results from OMNeT++ and compare them with the predictions generated from RouteNet-Fermi. I am having trouble figuring out how to format results into a dataset. I see that for a given dataset like geant, a omnet config file is provided with graphs and routing txt files. How do the graph and routing files correspond to an omnet ned file? Additionally, do values like the lambda min and max have to be defined within the ned file?

Thanks,
Rohin