I choose to poll 15 servers on my network for time synchronization. NTP
is selecting over 10 servers and clustering them. Some of the servers
NTP selects have offsets that are higher than the majority; in other
words, they do not have the correct time. Why are they being selected?
Why are so
Mischanko, Edward T wrote:
Some of the servers
NTP selects have offsets that are higher than the majority;
These might be the ones with the most correct time. A high offset only
indicates a poor time if you are certain that the local time is
absolutely correct.
Why are they being
Dave,
I changed my configuration, but there is no change in operation
# Miscellaneous stuff
tinker allan 7
tos maxclock 5 minsane 3
As for my question on server selection, all these servers are routers on
a corporate network. If 6 servers have the same offset and 3 do not
which ones would you
How doe Jitter and round trip time affect local time clock time acccuracy?
When looking at the jitter, what values would tell me that the phase noise
would make the local clock in accurate?
Are there any Rules of thumb to go by when looking at jitter and delay to
determine local clock
On 6/26/2011 11:36 AM, chipper wrote:
How doe Jitter and round trip time affect local time clock time acccuracy?
They don't *affect* the accuracy, they measure it!
When looking at the jitter, what values would tell me that the phase
noise would make the local clock in accurate?
Are there
chipper wrote:
If the ntp client needed to be withing .5 milliseconds of the server,how
Is the server keeping perfect time?
could I tell if the jitter and delay were to
much to support this kind of accuracy?
What percentage of the time can you tolerate the time being out by more
than 500
Richard B. Gilbert wrote:
very high quality. In particular, GPS sends a pulse per second and one
edge of that pulse is accurate to about +/- 50ns. The rest of the GPS
signal tells you which second is being marked by the specified edge,
leading or trailing (I've forgotten which).
GPS
On 6/26/2011 3:52 PM, chipper wrote:
If the ntp client needed to be withing .5 milliseconds of the server,how
could I tell if the jitter and delay were to
much to support this kind of accuracy?
Thanks
Chip
snip
Try it! If you are using an NTP server on the internet, it's going to
be
If the ntp client needed to be withing .5 milliseconds of the server,how could
I tell if the jitter and delay were to
much to support this kind of accuracy?
Thanks
Chip
Richard B. Gilbert wrote:
On 6/26/2011 11:36 AM, chipper wrote:
How doe Jitter and round trip time affect local time
