User`s guide

6. Monitoring and Troubleshooting
7990-A2-GB20-00 May 2002
6-13
DSL Performance Statistics are collected for:
MrGn:
The margin level calculated from the Signal to Noise Ratio (SNR)
measured minus the SNR reference. The SNR reference is the value needed
to maintain a bit error rate of 10
-6
.
XmtPw:
The transmit power level in dBm.
Atten:
Attenuation. This is the number of dB that the signal is below a
reference point.
Use the virtual function keys to page through the intervals and clear statistics.
This Field . . . Contains . . .
Current Interval Timer The number of seconds which have elapsed in the current
15-minute interval. Maximum value is 900 seconds
(15 minutes). This counter resets every 15 minutes.
Payload Rate The Payload Rate across the DSL interface.
DSL Line Rate The rate of the DSL line. The line rate can be 200
–
2056 Kbps in
64 Kbps increments.
Current Int Performance data for the current 15-minute interval.
Interval
xx Historical performance data for up to 96 15-minute intervals
(24 hours) where the value of
xx is from 01 to 96.