Our flat network is now past 3000 nodes and I am investigating Arista's ML2 

plugin and / or Mellanox's NEO as the ML2 plugin.

In addition to scaling we also have additional requirements like provisioning a bare-metal server

in a conference room away from the DC for demo purposes.

I have general questions on whether anyone is actually using the above two (or any other ML2 plugins)

with their Openstack ironic installations ?

Thanks,

Fred.