Can we expect taht the overall jitter changes too? I suspect not as it's a constant offset but would be nice to know?
Von: Delio Brignoli <dbrign...@audioscience.com> An: Armin HAMAR <armin.ha...@sprecher-automation.com> Kopie: Linuxptp-users@lists.sourceforge.net Datum: 05.07.2019 11:47 Betreff: Re: Antwort: Re: [Linuxptp-users] Antwort: Re: PPS to Linux PTP offset/delay? > On 5 Jul 2019, at 11:01, Armin HAMAR <armin.ha...@sprecher-automation.com> wrote: > > I did test both first the intel card to another one which needed only minimal adjustments to get it down where i wanted it to be. > Sadly i currently have no way to get a second FEC. Given you have the i210 working as you expect you could try doing this: > However, I would try to address the delay issue first and then if still necessary use the delayAsymmetry configuration parameter. > I would connect two i210 point to point (directly), run linuxptp and change the egress/ingress compensation values until: > 1- The peer delay is symmetric > 2- The peer delay is close to what you expect for the length of the cable you are using to connect the two peers (short patch cables are not a good idea for this case, I would use a cable a few meters long) in the i210 <—> FEC setup by only changing compensation values for the FEC side. Regards — Delio
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