On Tue, Jun 07, 2022 at 10:13:31AM +0100, Jay Shardlow wrote: > At this point I'm slightly out of my depth and out of ideas. The Broadcom > obviously does work (or they wouldn't advertise it as such), so must be > something with my environemnt, but I have no idea what.
I doubt it's HW related. You can try software timestamping (-S) to rule that out. In the ptp4l log there should be a message about the remote clock. If there is only the local clock, ptp4l is not getting the annoucement messages. That doesn't require any timestamping. You can verify ptp4l is receiving messages from network with strace like this: strace -erecvmsg ptp4l -m -q -i eth0 -s -- Miroslav Lichvar _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users