Hi, On Thu, 2015-02-26 at 13:43 -0800, Gary E. Miller wrote: > Yo Rich! > > On Thu, 26 Feb 2015 16:29:00 -0500 > Rich Schmidt <schmidt.r...@gmail.com> wrote: > > > The config file for ptp4l was just as provided in my last note. There > > wasn't much else to setup. > > Uh, sorry, already deleted... > > > I disabled chrony, as I am serving NTP. > > Uh, say what? Chronyd is used to serve NTP, I hope you are not using ntpd > instead? I find chrony much superior in timeserving to chronyd. > > > I have an FEI-Zyfer Gsync II > > Time and Frequency Processor acting as PTP Grandmaster. I configured > > the IP address of an i350 NIC to the same subnet as my Grandmaster. > > Using "ethtool -T" I find that my PHC is number 0, which is /dev/ptp0. > > Could I please get the ethtool -T dump? I'm trying to figure out > what features do what... > > > So my ptp4l command is: > > nohup nice --20 /usr/local/sbin/ptp4l -m -f /etc/ptp4l.conf -i eth2 -p > > /dev/ptp0 > /var/log/ptp4l.log & > > and to steer my system to the PHC I run: > > nohup nice --20 /usr/local/sbin/phc2sys -q -m -c CLOCK_REALTIME -s > > /dev/ptp0 -E linreg -O 0 -l 7 >/var/log/ptp/phc2sys.log & > > > > Note that my Grandmaster is on UTC , not PTP timescale, so I specify > > -O 0 for the UTC offset for phc2sys. > > Then I run as an NTP stratum 1 server using the local clock refclock > > in /etc/ntp.conf: > > server 127.127.1.0 prefer > > server 192.5.41.40 noselect > > fudge 127.127.1.0 stratum 0 > > fudge 127.127.1.0 refid PTP > > Hmm, no secondary sources? How do you know you do not have the large > offset I see?
I am wondering if maybe it is because your provided PTP source wasn't in PTP timescale, so you might try the -O 0 option? Regards, Jake ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Linuxptp-devel mailing list Linuxptp-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-devel
