The value of the object tMacFltrEntryActActionId specifies a unique identifier of an action within the filter entry. Per one filter entry up to two actions can be configured (the primary and the secondary). PBF destination availability checking for an entry is turned on when both actions (the primary and the secondary) are configured for an entry. This is allowed only for the following combinations of actions: - both actions are PBF to SAP - both actions are PBF to SDP - the primary action is PBF to SAP and the secondary action is PBF to SDP or vice versa If the PBF destination of the primary action is available, then the primary action will be taken on a packet matching the filter entry. If the PBF destination of the primary action is not available and the PBF destination of the secondary action is available then the secondary action will be taken on a packet matching the filter entry. If none of the actions for the entry has an available PBF destination then the action specified by the object tMacFilterParamsPbrDwnActOvr will be taken on a packet matching the filter entry. There is a limit to the number of filter entries with the destination availability checking turned on.