Comment 10 for bug 1743480

As a baseline, floating IP networks can be distinguished by checking networks whose 'router:external' attribute is True.
"provider network" is a network which is created by a cloud operator. "provider network" is expected a network with 'shared=True' attribute.

On the other hand, could you clarify what is "external provider network"? Can I assume "external provider network" is a network which is a "provider network" and "floating IP network" at the same time?

There might be several corner cases where "router:external" or "shared" attributes. If there are such cases, I think we can fix them one by one.

I might be missing some basic points though.....