On Tue, Jul 23, 2019 at 01:35:18PM +0000, Lyndon Teng wrote: > Dear Richard, > > I hope this email finds you well. > > I have been encountering this problem when trying to connect multiple PTP > clients to a PTP grandmaster via a switch. When there is only one client on > the network, the master_offset converges and the machine is kept nicely in > sync. However, when I connect a second client, the following errors flood the > stdout and the machine loses synchronisation (by which I mean it still stays > in s2, but offset diverges and is wildly unstable) > > I understand from previous mailing list replies that this could be caused by > the hardware not being able to process the delay requests quickly enough, but > even after setting the grandmaster sync to 1Hz, I still have these messages > flooding my screen, at a much higher rate.
Sounds like packets looping. You didn't tell us any details about your setup: HW, SW, config. So it is impossible to tell. Sorry, Richard _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users