The clock freq-deviation-detect enable command enables frequency offset check on clock signals.
The undo clock freq-deviation-detect enable command disables frequency offset check on clock signals.
By default, frequency offset check on clock signals is not enabled.
If the clock synchronization network has high requirements for frequency offset of clock signals, run the clock freq-deviation-detect enable command to enable frequency offset check. After this function is enabled, the system performs frequency offset check on clock signals. If the frequency offset value exceeds the specified threshold, the system considers that the clock source is unreliable and triggers another automatic clock source selection.
Frequency offset check on a clock source helps determine whether the quality of the clock source is good or not. If the frequency offset value of a clock source exceeds the specified threshold, the system clock does not trace this clock source any more. To configure the range of frequency offset check, run the clock alarm-threshold frequency-offset frequency-offset-value command.