This read-write port list, when written, removes the specified ports from the customer VLAN association of this double-VLAN entry; the list is forced empty whenever double VLAN is disabled. An admin sets it to detach specific access ports from a QinQ service instance without having to delete and recreate the whole entry. For example, an admin decommissioning one customer's port from a shared QinQ service would set this object to that port to remove it from swDoubleVlanAccessPorts.