[Linuxptp-users] ptp4l results in stable master offset, but phc2sys usually see some spike in offset (10000+)

[Sean Ma <x_...@ho...>]

Hi,

We are using a PTP GM connecting to Intel I350 as our PHC, running Centos OS.

In the ptp4l, the master offset is always stable.
In the phc2sys sometimes we get spike up to 10000 once or more per minute, command used: phc2sys -s <I350 NIC port> -w -m -n 44

Do we know the typical reason for this behavior?

BR
Sean