The documentation sure seems geared to steer you into a support contract. I've got 25+ years with *nix of assorted varieties, and networking, but I've been pawing at this for a couple hours now and still don't even have a test version installed and working. NOT user friendly documentation at all. Currently stuck at "can't reach Redis server" yet absolutely no documentation I can find that even indicates how to tell it what Redis server to use. The sample config file(s) and documentation are less than bare-bones. Sad.
Very reminiscent of the products RedHat champions as open source, yet it's like black magic to get the open source versions running.
Edit: lol, and it looks like it's all been a waste of time, as I was hoping to pull in data from a couple switches and my router I have in my pretty damn simple home setup - that I might use and become familiar with this software so I could maybe one day use it in a professional capacity - but for SNMP monitoring "An ntopng Enterprise M license or above is required." 🤦♂️ ... having actually once after MUCH effort gotten the open source version of AWX working and fulfilling my needs (true story!), I don't think it's a stretch to say this is actually worse than what RedHat does.