System information

VDSL Configuration
3-67
• Line Performance Date Information
- Loss of Frame (LOF) – Number of seconds that there was loss of framing,
since the switch was last reset, or in the indicated time interval, .
- Loss of Signal (LOS) – Number of seconds that there was loss of signal,
since the switch was last reset, or in the indicated time interval.
- Loss of Power – Number of seconds that there was loss of power, since the
switch was last reset, or in the indicated time interval.
- Loss of Link – Number of seconds that there was loss of link, since the switch
was last reset, or in the indicated time interval.
- Errored Second – Number of Errored Seconds since the switch was last
reset, or in the indicated time interval. An Errored Second is a one-second
interval containing one or more CRC anomalies, or one or more LOS or LOF
defects.
- Severely Errored Second – Number of Severely Errored Seconds since the
switch was last reset, or in the indicated time interval. An Errored Second is a
one-second interval containing one or more CRC anomalies, or one or more
LOS or LOF defects.
- Unavailable Second – Numberof Unavailable Seconds since the switch was
last reset, or in the indicated time interval.
- Init – Number of line initialization attempts since the switch was last reset, or
in the indicated time interval. This count includes both successful and failed
attempts.
- Valid intervals – The number of intervals within which errors have been
detected.
- Invalid Intervals – The number of intervals within which no errors have been
detected.