Summit WM3000 Series Controller System Reference Guide 269
1 Select Services > Secure NTP from the main menu tree.
2 Select the NTP Status tab.
3 Refer to the SNTP Status field to review the accuracy and performance of the controller’s ability to
synchronize with a NTP server:
Leap
Indicates if a second will be added or subtracted to SNTP packet
transmissions, or if the transmissions are synchronized.
Stratum
Displays how many hops the controller is from its current NTP time
source.
Reference
Displays the address of the time source the controller is synchronized to.
Frequency
A SNTP server clock’s skew (difference) for the controller
Precision
Displays the precision (accuracy) of the controller’s time clock (in Hz).
The values that normally appear in this field range from -6 for mains-
frequency clocks to -20 for microsecond clocks found in some
workstations.
Reference time
Displays the time stamp at which the local clock was last set or
corrected.
Clock Offset
Displays the time differential between controller time and the NTP
resource.
Root delay
The total round-trip delay in seconds. This variable can take on both
positive and negative values, depending on the relative time and
frequency offsets. The values that normally appear in this field range
from negative values of a few milliseconds to positive values of several
hundred milliseconds.
Root Dispersion
Displays the nominal error relative to the primary time source in seconds.
The values that normally appear in this field range from 0 to several
hundred milliseconds.
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