The Fdt Manager (Foreign Device Table, or FDT) is the default view of the ForeignDeviceTable under the Link container of an IpPort (BacnetIpLinkLayer). When the station is operating as a BBMD, this table lists other BACnet “foreign devices” that have registered with Niagara, including their IP address, time to live, and purge time. This view allows you to manually edit the FDT, if necessary, to support devices that cannot register themselves. For more details, see Foreign Device Table.