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On 03/04/2015 09:00 AM, jankihchhatbar at gmail.com wrote:
> ‎Hi
>
> My colleague and me got into a discussion today about nova network. From
> my understanding, a setup is said to be neutron if it has Neutron agents
> installed and running‎ and not that it is a three node architecture
> meaning it has 3 physical hardware. And a set up is using nova network
> if it doesn't have neutron agents running and not that it is a 2 node
> architecture.
>
> Number of nodes needed depends on the configurations of the physical
> hardware. Meaning we have neutron setup with 2 nodes also..
>
> Or is it that 2 node setup is nova network and 3 node is neutron?

The difference has nothing to do with how many nodes your deployment 
has. Neutron is a stand-alone L2 and L3 network management service. 
nova-network is the built-into-Nova network management service. Neutron 
is intended to eventually replace nova-network.

Best,
-jay