azelio.boriani@screen.it said: > And don't forget those NTP people. BTW, is there an NTP packet exchange > example? That is, what is the typical "conversation" between an NTP server > and a client? What are you looking for? The wikipedia page is a good introduction: http://en.wikipedia.org/wiki/Network_Time_Protocol NTP is a big sub-set of time-nut activity with an active community of geeks. I think any time-nut documentation should point to other info rather than duplicate their activity. http://www.ntp.org/ There is also PTP, IEEE 1588 The basic NTP "conversation" is the typical client/server exchange of a pair of UDP packets. tcpdump will decode the contents so you can easily use it to get a quick introduction. (That's assuming you have a system running NTP that already generates the packets.) -- These are my opinions. I hate spam.

Yes, the problem is that I don't have anything running NTP... I'm searching for a packet dump: I should use it to quickly develop the response for a possible Lantronix XPort implementation. On Mon, Oct 22, 2012 at 6:22 PM, Hal Murray <hmurray@megapathdsl.net> wrote: > > azelio.boriani@screen.it said: > > And don't forget those NTP people. BTW, is there an NTP packet exchange > > example? That is, what is the typical "conversation" between an NTP > server > > and a client? > > What are you looking for? > > The wikipedia page is a good introduction: > http://en.wikipedia.org/wiki/Network_Time_Protocol > > NTP is a big sub-set of time-nut activity with an active community of > geeks. > I think any time-nut documentation should point to other info rather than > duplicate their activity. > http://www.ntp.org/ > > There is also PTP, IEEE 1588 > > > The basic NTP "conversation" is the typical client/server exchange of a > pair > of UDP packets. tcpdump will decode the contents so you can easily use it > to > get a quick introduction. (That's assuming you have a system running NTP > that already generates the packets.) > > > > -- > These are my opinions. I hate spam. > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >

		Attila Kinali

On Mon, 22 Oct 2012 22:45:27 +0200 Azelio Boriani <azelio.boriani@screen.it> wrote: > Yes, the problem is that I don't have anything running NTP... I'm searching > for a packet dump: I should use it to quickly develop the response for a > possible Lantronix XPort implementation. Feel free to use the attached one. If anyone needs more ntp data, please let me know Attila Kinali -- There is no secret ingredient -- Po, Kung Fu Panda

                     Attila Kinali

OK, thank you. On Wed, Oct 24, 2012 at 9:38 PM, Attila Kinali <attila@kinali.ch> wrote: > On Mon, 22 Oct 2012 22:45:27 +0200 > Azelio Boriani <azelio.boriani@screen.it> wrote: > > > Yes, the problem is that I don't have anything running NTP... I'm > searching > > for a packet dump: I should use it to quickly develop the response for a > > possible Lantronix XPort implementation. > > Feel free to use the attached one. > > If anyone needs more ntp data, please let me know > > Attila Kinali > -- > There is no secret ingredient > -- Po, Kung Fu Panda > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >