at some point we did not want to use MRTG i believe, so we deleted it from the module list.
i want to start using it again, and i added the feature back in to our server, however, it shows "no" under installed
i took all the information from the prebuilt VM and added the module back in btw. -- including name, namespace, desc, etc ...
when i look at /status/network_traffic i *do* see graphs from the one switch i did put in place.