I don't know about ODL, but in principle yes. For example, see the config parameters physical_interface_mappings and bridge_mapping, which map provider networks to physical interfaces.

Thank you for the reply and yes, I understands that I can modify the ML2 to make the multi NICs works. However, when I stack the devstack, the ml2 ini get updated as default vlaues. I just need to understand that how to pass those parameter from local.conf?

Kind Rahu