The set of ports configured by management in this VLAN to which all multicast group-addressed frames are to be forwarded. Ports entered in this list will also appear in the complete set shown by ieee8021QBridgeForwardAllPorts. This value will be restored after the device is reset. This only applies to ports that are members of the VLAN, defined by ieee8021QBridgeVlanCurrentEgressPorts. A port may not be added in this set if it is already a member of the set of ports in ieee8021QBridgeForwardAllForbiddenPorts. The default value is a string of ones of appropriate length, to indicate the standard behaviour of using basic filtering services, i.e., forward all multicasts to all ports. The value of this object MUST be retained across reinitializations of the management system.