The Ntp Time Offset Performance Graph - Spectracom SecureSync User Reference Manual

4.10 NTP Status Monitoring
4.10.1

The NTP Time Offset Performance Graph

To view the NTP Time Offset performance graph:
1.
Navigate to the MANAGEMENT/NETWORK/NTP Setup screen.
2.
In the NTP Status Summary panel locate the Time Offset graph.
250
Selected Ref —The reference SecureSync is currently using.
Stratum —This is the stratum level at which SecureSync is operating.
Leap Indicator —The leap indicator bits (usually 00). See "Leap Second Alert Noti-
fication" on page 273.
Delay (ms) —The measured one-way delay between SecureSync and its selected ref-
erence.
Time Offset —This is a graphical representation of the system time offset over time.
Clicking on this graph in the NTP Status Summary panel will open a window in the
main panel containing a larger, more detailed view of the graph. See "The NTP Time
Offset Performance Graph" below.
Offset (ms) —Displays the configured 1PPS offset values.
Frequency Offset —This is a graphical representation of the system frequency off-
set over time. Clicking on this graph in the NTP Status Summary panel will open a
window in the main panel containing a larger, more detailed view of the graph. See
"The NTP Frequency Offset Performance Graph" on page 252.
Jitter (ms) —Variance (in milliseconds) occurring in the reference input time (from one
poll to the next).
Jitter —This is a graphical representation of the system jitter over time. Clicking on
this graph in the NTP Status Summary panel will open a window in the main panel
containing a larger, more detailed view of the graph. See "The NTP Jitter Per-
formance Graph" on page 253.
NOTE – This panel is updated every 30 seconds, or upon clicking the browser
refresh button.
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4 SecureSync User Reference Guide Rev. 18