Clients sockets are closed immediately after receiving valid response. Don't wait for the first early HW TX timestamp to enable waiting for late timestamps. It may take a long time or never come if the HW/driver is consistently slow. It's a chicken and egg problem. Instead, simply check if HW timestamping is enabled on at least one interface. Responses from NTP sources on other interfaces will always be saved (for 1 millisecond by default). |
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