On Thu, Oct 11, 2018 at 09:53:37PM +0200, Joanna wrote: > Hi, > I am having a Centos server that is a PTP grandmaster for systems in my > network. > The server is getting the time using NTP (chrony) from interface eth0 > and acts as a PTP grandmaster on interface eth1. The requirement is > that the server and other systems on eth1 network are in sync (phc and > sys time). I am using ptp4l for PTP syncronization and phc2sys to sync > clocks. The problem is that the sys time and phc time on the server > are drifting apart by around 70ms per hour.
That suggests phc2sys is not working as expected. Can you please post its output? > I am setting the phc to UTC with 37 seconds offset after boot: > testptp -s > testptp -t 37 > PTP and phc2sys options are as follows: > ptp4l -f /etc/ptp4l.conf -i eth1 > phc2sys -a -r -r -- Miroslav Lichvar _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users
