NTP Status

The NTP Status screen displays performance (status) information relative to the NTP association status. Verify NTP status to assess the controller or service platform's current NTP resource.

To view the NTP status of a controller or service platform managed network:

1. Select the Statistics menu from the Web UI.
2. Expand the System node from the navigation pane (on the left-hand side of the screen). The System node expands to display the RF Domains created within the managed network.
3. Expand the RF Domain node.
4. Select a Wireless Controller.
5. Expand the Network Time menu.
   The Statistics > Controller > Network Time > NTP Status screen displays by default.

   

   

   Refer to the NTP Status table to review the accuracy and performance of the synchronization with a NTP server resource.

   Clock Offset	Displays the time differential between the controller or service platform time and the NTP resource's time.
   Frequency	An SNTP server clock‘s skew (difference) for the controller or service platform and the dedicated NTP resource.
   Leap	Indicates if a second is added or subtracted to SNTP packet transmissions, or if transmissions are synchronized.
   Precision	Displays the precision of the time clock (in Hz). The values that normally appear in this field range from -6 for mains-frequency clocks to -20 for microsecond clocks.
   Reference Time	Displays the time stamp the local clock was last set or corrected.
   Reference	Displays the address of the time source the controller or service platform is synchronized to.
   Root Delay	The total round-trip delay in seconds. This variable can take on both positive and negative values, depending on relative time and frequency offsets. The values that normally appear in this field range from negative values (a few milliseconds) to positive values (several hundred milliseconds).
   Root Dispersion	The difference between the time on the root NTP server and it's reference clock. The reference clock is the clock used by the NTP server to set its own clock.
   Stratum	Displays how many hops the controller or service platform is from its current NTP time source.

6. Select Refresh to update the screen's statistics counters to their latest values.