Re: [ntp:questions] frequency adjusting only

2008-04-22 Thread maxime louvel
Thanks, I am actually using 4 public NTP server, which whom my node-1 synchronises to. Then node-1 broadcasts the time to all the other nodes in the subnet. My goal is to achieve a synchronisation between the nodes (not with the public NTP server) within 50 usec. I don't care if the

Re: [ntp:questions] frequency adjusting only

2008-04-22 Thread eugenemil
You might want to take a look at TSCclock developed at the University of Melbourne: http://www.cubinlab.ee.unimelb.edu.au/~darryl/Publications/ISPCS07_camera.pdf Gene ___ questions mailing list questions@lists.ntp.org

Re: [ntp:questions] Too high steps in time reset

2008-04-22 Thread Steve Kostecke
On 2008-04-22, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] log]# ntpq -p remote refid st t when poll reach delay offset jitter === xdcf77 LOCAL(0) 11 u 130 1024 377 5.676 1307.74

Re: [ntp:questions] frequency adjusting only

2008-04-22 Thread Richard B. Gilbert
maxime louvel wrote: On Tue, Apr 22, 2008 at 2:42 PM, Steve Kostecke [EMAIL PROTECTED] wrote: On 2008-04-22, maxime louvel [EMAIL PROTECTED] wrote: My goal is to achieve a synchronisation between the nodes (not with the public NTP server) within 50 usec. You may want to explore other

Re: [ntp:questions] frequency adjusting only

2008-04-22 Thread Unruh
[EMAIL PROTECTED] (maxime louvel) writes: Thanks, I am actually using 4 public NTP server, which whom my node-1 synchronises to. Then node-1 broadcasts the time to all the other nodes in the subnet. My goal is to achieve a synchronisation between the nodes (not with the public NTP server)

Re: [ntp:questions] frequency adjusting only

2008-04-22 Thread Unruh
Richard B. Gilbert [EMAIL PROTECTED] writes: maxime louvel wrote: On Tue, Apr 22, 2008 at 2:42 PM, Steve Kostecke [EMAIL PROTECTED] wrote: On 2008-04-22, maxime louvel [EMAIL PROTECTED] wrote: My goal is to achieve a synchronisation between the nodes (not with the public NTP server) within

Re: [ntp:questions] Too high steps in time reset

2008-04-22 Thread Unruh
[EMAIL PROTECTED] writes: Hello everybody. Since years, I've configured a ntp server to keep aligned thousand of host in a private network where the time is vital. But in the last month I experienced a problem because my ntp server syncronize resets time with large steps (5-20 seconds) and this

Re: [ntp:questions] frequency adjusting only

2008-04-22 Thread maxime louvel
Hi thanks every body, I am looking at the other solution and see what's the best for me. - My switches shouldn't be overloaded but I have to check that. Any idea of how ? Network sniffing ? theory ? - I think I have a problem with the temperature, indeed I have let only ntpd run on the node for

[ntp:questions] Problem monitoring NTP synchronization status

2008-04-22 Thread eespejel
Hi there. I did just set up a Linux box to time synchronize to a Cisco router. I would like to have a way to know whenever the Linux box stops synchronizing (because of any network connecticity issue, for instance). any ideas? ___ questions mailing list

Re: [ntp:questions] Too high steps in time reset

2008-04-22 Thread David Woolley
[EMAIL PROTECTED] wrote: [EMAIL PROTECTED] log]# ntpq -p remote refid st t when poll reach delay offset jitter == xdcf77 LOCAL(0)11 u 130 1024 3775.676 1307.74

Re: [ntp:questions] frequency adjusting only

2008-04-22 Thread Unruh
[EMAIL PROTECTED] (maxime louvel) writes: Hi thanks every body, I am looking at the other solution and see what's the best for me. - My switches shouldn't be overloaded but I have to check that. Any idea of how ? Network sniffing ? theory ? Look at the ntp roundtrip times and see how they

Re: [ntp:questions] frequency adjusting only

2008-04-22 Thread Unruh
Richard B. Gilbert [EMAIL PROTECTED] writes: Unruh wrote: Richard B. Gilbert [EMAIL PROTECTED] writes: maxime louvel wrote: On Tue, Apr 22, 2008 at 2:42 PM, Steve Kostecke [EMAIL PROTECTED] wrote: On 2008-04-22, maxime louvel [EMAIL PROTECTED] wrote: My goal is to achieve a

Re: [ntp:questions] Problem monitoring NTP synchronization status

2008-04-22 Thread Unruh
[EMAIL PROTECTED] writes: Hi there. I did just set up a Linux box to time synchronize to a Cisco router. I would like to have a way to know whenever the Linux box stops synchronizing (because of any network connecticity issue, for instance). any ideas? $!/bin/sh if ! ntpq|grep '*

Re: [ntp:questions] Problem monitoring NTP synchronization status

2008-04-22 Thread Hal Murray
$!/bin/sh if ! ntpq|grep '* name.of.router'/dev/null; then mail -s NTP sync has been lost [EMAIL PROTECTED] fi And put the shell script into crontab to run every minute. (your milage may vary) That could lead to a lot of clutter in your mailbox. -- These are my opinions, not necessarily my