Re: [ntp:questions] Can NTP sync within 1ms
On 2014-04-24, Montgomery, Peter BIS wrote: > I am new to NTP. But I have a quick question that I need to answer soon. > > I would like to know whether NTP can sync between a client and a server > within 1ms if the client and server are Linux applications on a simple local > network ( less than 10 nodes). > It can sync to 10 micro (not milli) seconds. Assuming Linux of BSD. For Windows apparently 1ms is more like it. > > Sincerely, > > Peter ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
Re: [ntp:questions] New Stratum-1 at the University of Houston
The NTP ST1 server at the University of Houston has been offline for about a month. Any information about its demise? Yet another victim of a DOS attack? TIA ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
[ntp:questions] Can NTP sync within 1ms
I am new to NTP. But I have a quick question that I need to answer soon. I would like to know whether NTP can sync between a client and a server within 1ms if the client and server are Linux applications on a simple local network ( less than 10 nodes). Sincerely, Peter ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
[ntp:questions] Attn Linux distributors - pse include PPS
On two different distributions, openSUSE 13.1 and Ubuntu 14.04, I noticed that while everything is available to support kernel PPS, the distributed ntpd is compiled without refclock 22 (Atom) support. This apparently is not intentional, as the ./configure command on both distributions includes many parameters to force inclusion of as many refclocks as possible. However, prerequisite of the compilation of kernel PPS is the availability of the file /usr/include/sys/timepps.h during the ./configure phase of compilation of the ntpd package. "all that is required" to get PPS working is to fetch the source package of ntpd for the distribution and recompile it while that single file has been added. e.g. on Ubuntu that file is present in the package pps-tools. So please, on your build systems, make sure that the package pps-tools or whatever other source used for timepps.h is installed during the compilation of ntpd. It makes the use of PPS much easier, as one does not have to find how to successfully compile a package from source on that particular system. And it will not be causing trouble when updates appear. ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
