Allow more than one root in one network

[Michelangelo]

Hi all.
I've seen in setup "Allow more than one root in one network" (menuconfig → Component config → MDF Mwifi → Root config). What does it mean?
I have a project of wide network where it's possible to have 20 or more layers. Is it possible to have more than one root, and allow nodes to automatically select the root with the best path?

[ChangMing]

No root conflicts resolution, so more than one root may exist in network. Other nodes will connect to the one with the best path automatically.