Yo Miroslav! On Tue, 31 Oct 2017 11:52:14 +0100 Miroslav Lichvar <mlich...@redhat.com> wrote:
> > Nope. Can you suggest a working configuration or a howto? I > > thought it used to work. > > A minimal configuration using software timestamping and the NTP SHM > segment #2 would be: > > 1. on master run: ptp4l -S -i eth0 -m > 2. on slave run: ptp4l -s -S -i eth0 -m --clock_servo NTPSHM > --ntpshm_segment 2 Bit I do not want a master/slave configuration. I want multi-master. Like this: http://www.catb.org/gpsd/gpsd-time-service-howto.html#_providing_local_ntp_service_using_ptp That config used to work. > If there are some ptp message from the master, it's likely a firewall > rule which blocks the messages from reaching ptp4l. UDP ports 319 and > 320 need to be allowed. Nope, my config is all local network, I only firewall at the connection to my ISP. > If no messages appear, the switch (if it's a managed switch) might > need to be configured to allow multicast traffic between the hosts. Nope, dumb switches only. RGDS GARY --------------------------------------------------------------------------- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588 Veritas liberabit vos. -- Quid est veritas? "If you can’t measure it, you can’t improve it." - Lord Kelvin
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