NTP clocks

[#1]

I have implemented NTP with 3 sources and It is not obvious to me which clock is being used.

The top clock has a "+"

The next one has a *

Both of these are stratum 2 clocks

The third one is a stratum 1 but shows as a stratum 16

The CLI documentation does not say what the + and * indicate.

Thanks for your help

[#2]

The one with the "*" is the one that it is currently using.

If it has a "+" then it will switch to that one if NTPd determines that can give better accuracy. There should normally be multiple clocks with a "+" next to it. This allows NTPd to failover to other clocks if there is a problem.

If any are showing stratum 16 then it is having difficulty contacting that clock - I'd check routing/firewall rules.