There has been an aspiration to replace Nova-net with Neutron for about 4 years now, hasn’t happened yet. The latest is that Neutron is being threatened with being demoted back into “Incubation”, due to promising to make itself production ready for each of the last 4 releases, and then totally failing to follow through. All of the handful of production deployments of Neutron are in conjunction with Nicira/NSX-MH, which does all the heavy lifting.
The Neutron folks are optimistic that they will be production ready in Juno (the next release, Oct this year), but I’m betting on Kilo, the release early next year.
Read more here:: Cumulus Networks