Annex-D
The ANSI T1.617 Frame Relay Annex-D version of the Local Management Interface (LMI) protocol. The Annex-D protocol has a more robust feature set than the proprietary Cisco/Stratacom LMI, but was developed later. Recent versions of the PortMaster software support either type of LMI. Earlier versions supported only the Cisco/Stratacom version. See also LMI.