Re: [ntp:questions] SNTP with 1ms of precision?

2010-07-08 Thread David Woolley
Danny Mayer wrote: On 6/16/2010 5:22 PM, Maarten Wiltink wrote: Marcelo Pimenta marcelopiment...@gmail.com wrote in message news:aanlktilq6m8apeoasibr-o8mhwifqkfv9xyf6mudr...@mail.gmail.com... [...] The NTP algorithm is much more complicated than the SNTP algorithm. The short, short version:

Re: [ntp:questions] SNTP with 1ms of precision?

2010-07-08 Thread Danny Mayer
On 7/8/2010 2:50 AM, David Woolley wrote: Danny Mayer wrote: On 6/16/2010 5:22 PM, Maarten Wiltink wrote: Marcelo Pimenta marcelopiment...@gmail.com wrote in message news:aanlktilq6m8apeoasibr-o8mhwifqkfv9xyf6mudr...@mail.gmail.com... [...] The NTP algorithm is much more complicated than

[ntp:questions] Change reference clock soon after DCF-signal is lost

2010-07-08 Thread Matuschka, Sebastian
Hi, i'm new here and have a question I couldn't answer by myself by searching the internet and reading the documentation for hours. I have a DCF77 Clock connected to the UART. The line in the ntp.conf looks like this: server 127.127.8.0 mode 5 prefer Receiving the time works, but when I

[ntp:questions] Change reference clock soon after DCF-signal is lost

2010-07-08 Thread Matuschka, Sebastian
Hi, i'm new here and have a question I couldn't answer by myself by searching the internet and reading the documentation for hours. I have a DCF77 Clock connected to the UART. The line in the ntp.conf looks like this: server 127.127.8.0 mode 5 prefer Receiving the time works, but when I disconnect

Re: [ntp:questions] SNTP with 1ms of precision?

2010-07-08 Thread Rob
Danny Mayer ma...@ntp.org wrote: There has been no attempt to redefine SNTP. RFC 2030 is 15 years old so it's hardly recent. Tools like ntpdate are not SNTP clients by the definitions of any RFC you care to name, it just sets the clock. SNTP is a simplified protocol to discipline the clock and

Re: [ntp:questions] Change reference clock soon after DCF-signal is lost

2010-07-08 Thread Rob
Matuschka, Sebastian sebastian.matusc...@gcd-solutions.de wrote: Hi, i'm new here and have a question I couldn't answer by myself by searching the internet and reading the documentation for hours. I have a DCF77 Clock connected to the UART. The line in the ntp.conf looks like this: server

Re: [ntp:questions] Change reference clock soon after DCF-signal is lost

2010-07-08 Thread David Lord
Matuschka, Sebastian wrote: Hi, i'm new here and have a question I couldn't answer by myself by searching the internet and reading the documentation for hours. I have a DCF77 Clock connected to the UART. The line in the ntp.conf looks like this: server 127.127.8.0 mode 5 prefer Receiving the

Re: [ntp:questions] SNTP with 1ms of precision?

2010-07-08 Thread David L. Mills
David, The basic definition of SNTP has not changed over the yeas, although rfc5905 does clarify the intended scope and role of primary servers, secondary servers and clients. It was the expected, but not required, model that the Unix adjtime() system call be used if the offset was less than

Re: [ntp:questions] SNTP with 1ms of precision?

2010-07-08 Thread David Woolley
Danny Mayer wrote: RFC 2030, which RFC5905 obsoleted, said the same thing. It doesn't The substring disci appears nowhere in RFC 2030; together with failing to find anything of the sort in a quick skim, and a specific skim of the wording around the word clock!, I conclude that RFC 2030