> -----Original Message-----
> From: Zuckerbrod, Daniel <dzuckerb...@textronsystems.com>
> Sent: Thursday, February 11, 2021 7:24 AM
> To: Richard Cochran <richardcoch...@gmail.com>
> Cc: Keller, Jacob E <jacob.e.kel...@intel.com>; linuxptp-
> us...@lists.sourceforge.net
> Subject: RE: [Linuxptp-users] PTP4L Offset Jumps When Querying PMC
>
> I do see that if I have other (non-ptp) traffic on the same network, the
> offsets
> move around much more and after a while ptp4l will start experiencing
> timestamp timeouts. ptp4l cannot recover from these timeouts unless I perform
> an ifconfig down/up.
>
The timestamp timeouts are probably caused by either the packet being dropped,
or the driver taking too long to report a Tx timestamp. This could be impacted
by network or system load, respectively.
The changes in the offset seem like an issue in driver or HW.
Thanks,
Jake
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