You can configure the Internal VLAN (Virtual LAN) ID, and enable multicast support. The internal VLAN used only internally and is not visible on the external traffic. The physical topology used for multicast is represented by a physical topology to/from which the multicast traffic is forwarded in conjunction with the virtual routed topologies (and VNSs) configured on the controller. Please note that no multicast routing is available at this time.
To configure the Internal VLAN ID and enable multicast support: