Re: [ntp:questions] Selection and Clustering of candidates

2011-06-28 Thread David Woolley
Mischanko, Edward T wrote: Why is 156.144.124.1 selected for clustering? It has the the highest delay and the highest jitter; it is not needed to synch the clock, as you can see I have plenty of candidates to choose from. Because the maximum error from network asymmetry on the other servers

Re: [ntp:questions] Selection and Clustering of candidates

2011-06-27 Thread E-Mail Sent to this address will be added to the BlackLists
Mischanko, Edward T wrote: 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 choose? I choose the 6 servers with the same offset. Which would NTP choose? You are likely

Re: [ntp:questions] Selection and Clustering of candidates

2011-06-27 Thread Mischanko, Edward T
+edward.mischanko=arcelormittal@lists.ntp.org [mailto:questions-bounces+edward.mischanko=arcelormittal@lists.ntp.o rg] On Behalf Of E-Mail Sent to this address will be added to the BlackLists Sent: Monday, June 27, 2011 5:01 PM To: questions@lists.ntp.org Subject: Re: [ntp:questions] Selection

[ntp:questions] Selection and Clustering of candidates

2011-06-26 Thread Mischanko, Edward T
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

Re: [ntp:questions] Selection and Clustering of candidates

2011-06-26 Thread David Woolley
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

Re: [ntp:questions] Selection and Clustering of candidates

2011-06-26 Thread Mischanko, Edward T
To: questions@lists.ntp.org Subject: Re: [ntp:questions] Selection and Clustering of candidates 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