[ntp:questions] Remaining synced on an unsynchronised peer?
michael.buetow at comsoft.de
Tue Jan 12 02:47:50 UTC 2010
After reading the comments about synch loops etc., I am also getting a
strong feeling this is basically stratum-related.
I never observed the hosts 'walking each other up' so far.
What I did observe is fluctuating reachability on them, alternating
fairly regularly from one to the other. But the one which is synced
Assuming when both lose contact to the external world:
- one of them will lose all it's refclocks first
- its stratum will go up to higher than that of its peer
- therefore it syncs on its peer
- it's stratum goes up, now its peer will no longer sync to it
This would suggest that it's a matter of timing which one of them becomes
synchronised on the other. I have to verify that - in my (very limited)
trials it was always a particular one that became synchronised. That
might well just have been chance.
However, I feel there's got to be a bug when an unsynchronised peer
continues providing replies.
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