Hi, I was trying to run ptp4l on two Upcore Plus with Net Plus. I tried with default.cfg and it works perfectly. However, as soon as I change time_stamping to software, ptp4l will stuck on state "port 1: LISTENING to UNCALIBRATED on RS_SLAVE". I was suspecting if the issues is with the igb driver. So I checked with 'ethtool -T enp2s0' and the driver does have 'software-transmit' Capabilities.
I then change the log level of ptp4l to 7 on both side. All I see on both side after the stuck state is 'delay timeout', 'master sync timeout', 'master tx announce timeout'. Am I doing something wrong? Is there something else in the default.cfg that I need to change in order to properly use software timestamping.
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