Xdsl Statistics; Chapter 24 Xdsl Statistics; The Xdsl Statistics Screen - ZyXEL Communications VMG3312-T20A User Manual

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
Refresh Interval
Line
xDSLFwVersion
Line State
Modulation
Annex Mode
Downstream
Upstream
SNR Margin
DESCRIPTION
Select the time interval for refreshing statistics.
Select which DSL line's statistics you want to display.
This displays the current firmware and hardware versions of the VMG.
This displays the current state of the DSL connection.
This displays the modulation method of the DSL connection.
This displays the annex mode of the DSL connection.
These are the statistics for the traffic direction coming into the port from the service provider.
These are the statistics for the traffic direction going out from the port to the service provider.
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.
VMG3312-T20A User's Guide
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