VMG3312-T20A User’s Guide
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CHAPTER 24
xDSL Statistics
24.1 The xDSL Statistics Screen
Use this screen to view detailed DSL statistics. Click System Monitor > xDSL Statistics to open the following
screen.
Figure 135 System Monitor > xDSL Statistics
The following table describes the labels in this screen.
Table 105 Status > xDSL Statistics
LABEL DESCRIPTION
Refresh Interval Select the time interval for refreshing statistics.
Line Select which DSL line’s statistics you want to display.
xDSLFwVersion This displays the current firmware and hardware versions of the VMG.
Line State This displays the current state of the DSL connection.
Modulation This displays the modulation method of the DSL connection.
Annex Mode This displays the annex mode of the DSL connection.
Downstream These are the statistics for the traffic direction coming into the port from the service provider.
Upstream These are the statistics for the traffic direction going out from the port to the service provider.
SNR Margin This is the upstream and downstream Signal-to-Noise Ratio margin (in dB). A DMT sub-carrier’s
SNR is the ratio between the received signal power and the received noise power. The signal-
to-noise ratio margin is the maximum that the received noise power could increase with the
system still being able to meet its transmission targets.
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