Zhone 7995 Guía Del Usuario
6. Monitoring and Troubleshooting
6-16
May 2002
7990-A2-GB20-00
Viewing Current DSL Performance
Current DSL Performance Statistics provides a snapshot of the performance of the
DSL port. These are the same values displayed for the current interval the DSL
Error Statistics screen (see
DSL port. These are the same values displayed for the current interval the DSL
Error Statistics screen (see
To view the Current DSL Performance, follow this menu selection sequence:
Main Menu
→
Status
→
Performance Statistics
→
Current DSL Performance
Select PgUp or PgDn to view more statistics.
Current DSL Performance Statistics are collected for:
Margin: 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
measured minus the SNR reference. The SNR reference is the value needed
to maintain a bit error rate of 10
-6
.
Attenuation: The number of dB that the signal has fallen below a reference
point.
point.
Tx Power: The transmit power level.
The following Current DSL Performance Statistics are collected for the selected
port:
port:
ES (Errored Seconds): Seconds during which one or more CRC errors has
occurred (as defined in G.826, section 4.1.1). Maximum value is 900.
occurred (as defined in G.826, section 4.1.1). Maximum value is 900.
SES (Severely Errored Seconds): Seconds during which 805 or more CRC
errors, more than 16 Frame Alignment Signal (FAS) errors, or at least one
Loss of Signal (LOS) or Alarm Indication Signal (AIS) has occurred. Maximum
value is 900.
errors, more than 16 Frame Alignment Signal (FAS) errors, or at least one
Loss of Signal (LOS) or Alarm Indication Signal (AIS) has occurred. Maximum
value is 900.
main/status/performance/current
Model: 799x
CURRENT DSL PERFORMANCE STATISTICS
Payload Rate: 1536 Kbps
Current Interval Timer: 2 DSL Line Rate: 1552 Kbps
--------------------------------------------------------------------------------
Near End Far End
Margin 02 03
Attenuation 00 00
Tx Power 13
ES 000 000
SES 000 000
UAS 000 000
LOSWS 000 000
--------------------------------------------------------------------------------
Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
PgUp PgDn