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Technical Tip: Understanding the 'diagnose system ntp status' command line

Description

This article explains each component in the 'diagnose system ntp status' command line.

Scope

FortiManager and FortiAnalyzer.

Solution

The diagnose system ntp status has the same output as the chronyc sources command in bash.

Run the following command in FortiManager/FortiAnalyzer:

diagnose system ntp status

The following table explains each of the components of the output in the diagnose system ntp status:

Stratum	Stratum '2' in FortiAnalyzer is 2 hops away from the reference clock.
Poll	A value of 10 indicates FortiAnalyzer polls at a rate of 2^10 = 1024 seconds from the source.
Reach	Indicates reachability to source. Notes: In octal = 377. In binary = 111111111. 1 = response was received (success). 0 = no response (missed).
LastRx	The last sample was received 935 seconds ago from the source.
Last sample	The last sample indicates the time differences between FortiAnalyzer and the source. -600us = Actual measured differences. -597us = Actual measured differences that are gradually adjusting themselves to match the source clock. 92ms = Margin of error in measurement. A positive value indicates FortiAnalyzer is ahead of the source for 92ms.

The output of the MS column can present any of the following symbols:

Symbol	Meaning
*	Currently selected sync source
+	Candidate (acceptable, not selected)
-	Discarded (outvoted)
x	Falseticker (time inconsistent)
~	Too variable
?	Unreachable
space	Not yet evaluated

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