[ntp:questions] what happens when sys.peer turns stratum 16?

Terje Mathisen "terje.mathisen at tmsw.no" at ntp.org
Mon May 31 07:06:38 UTC 2010

unruh wrote:
> Note, that this is one of the reasons why your customers should never
> use 2 servers. You have no way to know which one is crazy. Use 3 or 5.
> (4 can be as bad as 2 if two of the servers go nuts in exactly the same
> way-- eg they are both tied to a single server which has gone nuts).

This is simply wrong:

The number of immediate peers don't matter, it is the number of 
_independent_ servers that you should count.

Using multiple (say) S2 servers which all depend on a single S1 just 
means that you've (intentionally or not) outsmarted the ntpd voting 
algorithm. :-(


- <Terje.Mathisen at tmsw.no>
"almost all programming can be viewed as an exercise in caching"

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