Comment 1 for bug 1586584

> how many virtual devices such as vm, router, dhcp which connected to the network

You can port-list then filter by a network id.

> Further, we also want to know the tenants which those devices belong to

Once you have a list of ports, you can print out their tenant_id field.

> and the nodes on which those devices are located

That is persisted in the binding:host field.

Point is that all of this information may be found via a simple client script. What would a single command give you, and what would that command look like?