Indicates the VLAN-based forwarding policy for the unknown multicast packets.
Options:
1. forward(1) -indicates that the unknown multicast packets are transparently transmitted.
2. discard(2) -indicates that the unknown multicast packets are discarded.
3. notConfig(3) -indicate by VLAN single switch.
This leaf is optional for creating a VLAN service profile.
You can perform the set operation on this leaf to modify the VLAN-based forwarding policy
for the unknown multicast packets.
The VLAN-based forwarding policy for the unknown multicast packets can
also be configured in hwVlanPolicyMulticast of hwVlanMIBTable.
If a VLAN service profile is bound to the VLAN, the configuration
in the VLAN service profile takes effect.