Re: [ntp:questions] Too much offset from GPS?

2008-03-07 Thread Hal Murray
I have problem with my stratum1 box. My box include: freebsd 5.2-RELEASE without PPS , ntp-4.2.0_1, Intel Pentium III, 40 G IDE, Germin GPSmap60 , connect with serial com. In GPSmap60 set as NMEA. Freebsd box can get NMEA input string. My configuration of ntp.conf like this: server

Re: [ntp:questions] Too much offset from GPS?

2008-03-07 Thread Richard B. Gilbert
chowalit.lab Chowalit Lab Linux wrote: Dear all I have problem with my stratum1 box. My box include: freebsd 5.2-RELEASE without PPS , ntp-4.2.0_1, Intel Pentium III, 40 G IDE, Germin GPSmap60 , connect with serial com. In GPSmap60 set as NMEA. Freebsd box can get NMEA input string. My

Re: [ntp:questions] drift value very large and very unstable

2008-03-07 Thread Andy Helten
Rob Neal wrote: On Wed, 5 Mar 2008, Andy Helten wrote: I think I have been giving it enough time to stabilize -- any test I consider legitimate was allowed to run for at least 8 hours. Most tests ran overnight for 18-24 hours and some tests ran over weekends for nearly 72 hours.

Re: [ntp:questions] drift value very large and very unstable

2008-03-07 Thread Andy Helten
Fran Horan wrote: snip lots of detail So, the summary is that drift goes to 500ppm when stepping is disabled but runs normally when stepping is enabled and both situations never require a time step. This makes no sense to me. By the way, as mentioned previously, we require that time

Re: [ntp:questions] drift value very large and very unstable

2008-03-07 Thread Richard B. Gilbert
Andy Helten wrote: Andy wrote: The good news is that new ntp.conf appears to work! This is the first configuration that has produced reasonable results, granted it could still be a fluke since the drift was rather unpredictable (but _always_ settled near +/-500ppm). The bad news is that we

Re: [ntp:questions] drift value very large and very unstable

2008-03-07 Thread Richard B. Gilbert
Andy Helten wrote: Fran Horan wrote: snip lots of detail So, the summary is that drift goes to 500ppm when stepping is disabled but runs normally when stepping is enabled and both situations never require a time step. This makes no sense to me. By the way, as mentioned previously, we

Re: [ntp:questions] drift value very large and very unstable

2008-03-07 Thread Andy Helten
Richard Gilbert wrote: A comment in ntp.conf and/or the startup file, explaining WHY stepping is enabled should go a long way toward solving the dumbass problem. Yes, I know, but that requires someone to actually read the comments in the conf files and there is always the '-x' argument

Re: [ntp:questions] Too much offset from GPS?

2008-03-07 Thread Unruh
Steve Kostecke [EMAIL PROTECTED] writes: On 2008-03-07, Hal Murray wrote: ATTRIBUTION MISSING wrote: I have problem with my stratum1 box. My box include: freebsd 5.2-RELEASE without PPS , ntp-4.2.0_1, Intel Pentium III, 40 G IDE, Germin GPSmap60 , connect with serial com. In GPSmap60 set as

Re: [ntp:questions] Too much offset from GPS?

2008-03-07 Thread Nero Imhard
chowalit.lab Chowalit Lab Linux wrote: My GPS have offset lower than other stratum 1 server ?? ... This is, or should be, a FAQ. NMEA output is unusable as a time source. The time in an NMEA sentence tells you at what time the stated position etc. was measured, but not the current time.

Re: [ntp:questions] Too much offset from GPS?

2008-03-07 Thread isw
In article [EMAIL PROTECTED], Unruh [EMAIL PROTECTED] wrote: Steve Kostecke [EMAIL PROTECTED] writes: On 2008-03-07, Hal Murray wrote: ATTRIBUTION MISSING wrote: I have problem with my stratum1 box. My box include: freebsd 5.2-RELEASE without PPS , ntp-4.2.0_1, Intel Pentium III, 40 G

[ntp:questions] May sound like a newbe question, but....

2008-03-07 Thread VFikov
May sound like a newbe question, but am I wrong or earlier Windows clients were syncing with NTP ? The problem is simple: A big building, about 350-400 Windows XP PCs, and 2 Linux servers not only for NTP, but for it too... Now today, on my laptop I had to edit the registry of the XP, so it could

Re: [ntp:questions] May sound like a newbe question, but....

2008-03-07 Thread David J Taylor
VFikov wrote: May sound like a newbe question, but am I wrong or earlier Windows clients were syncing with NTP ? The problem is simple: A big building, about 350-400 Windows XP PCs, and 2 Linux servers not only for NTP, but for it too... Now today, on my laptop I had to edit the registry of