MdmStats is a program to monitor and display statistics available from CenturyLink VDSL modems (C1000A, C1100Z, C2000T, C2100T, and possibly others). Statistics include downstream and upstream Data Rate, SNR, Attenuation, Power, FEC Errors, and CRC Errors. These statistics are sampled at 3-second intervals and logged to a file (MdmStats.dat) that can then be displayed in graphical form with MdmGraph, which can be launched from File -> Graph.
To use MdmStats, the VDSL modem must have its Telnet interface enabled. Using a web browser, log into the modem and go to Advanced Setup -> Remote Console, select Telnet Enabled, and set the Telnet Password. Then configure MdmStats at Edit -> Options. Prefix should be set to xdslctl if using non-bonded service, xdslctl0 for line 1 of bonded service, or xdslctl1 for line 2 of bonded serice. To have MdmStats run automatically when Windows is booted, create a shortcut to MdmStats.exe in the Startup folder of the Windows Start menu.
MdmStats will create an icon in the Windows taskbar system tray/notification area. Moving the mouse pointer over this icon will display current SNR, FEC, and CRC values. Left double-clicking this icon will alternately display and hide the MdmStats program window. Closing the MdmStats window will also hide the program window. To terminate MdmStats, use File -> Exit.
Other menu options include:
File -> Save : Saves a copy of the most recent Telnet data to MdmStats.txt
File -> View : Displays the most recent Telnet data in a scrollable window
Edit -> Reset : Resets the modem statistics (FEC/CRC error counters)
Help -> About : Displays the program version date.
MdmGraph displays SNR levels horizontally while FEC and CRC errors are displayed vertically. Average SNR values and error totals are displayed at the top of graph. The upper scrollbar controls the duration of the data displayed while the lower scrollbar controls the specific time interval. The initial display is the last four hours captured (or less if that much data has not yet been collected).
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