Description: The NTO filter definition table contains filter configuration properties. NTO supports three types of filters: Network Port Filter, Dynamic Filter, and Tool Port filter. Network Port and Tool Port filters can either be associated with a physical interface or a logical port group. Logical port group filters contain 0 to 8 physical interfaces. The port group filter and each of its contained physical interfaces are considered to be port filters. The contained port filters inherit the filter type, mode, criteria, and connections from their parent port group. Unlicensed physical ports do not have port filter objects so they don't have rows in the filter tables. Every licensed physical port has a port filter object configured in one of the valid filter modes: Pass All, Deny All, Pass by Criteria, or Deny by Criteria. Dynamic filters and Logical port group filter objects are created, configured, and deleted by the user using one of the client interfaces (NTO Control Panel or scripting interface). Filter creation, modification of filter properties, and filter deletion are reflected in anueNtoFilterDefTable. Several filter statistics tables and a filter history table extend (logically augment) anueNtoFilterDefTable.