card is enp2s0 below.
Figure 4: Find network card name
2. Use the command $ethtool - T enp2s0 (network card’s name) to check whether the
network card supports PTP hardware. For gPTP synchronization, hardware support is
required, PTP Hardware Clock should be 1.
Figure 5: Check PTP hardware supporting status
3. Download and install the Linuxptp tool.
$sudo git clone git://git.code.sf.net/p/linuxptp/code linuxptp
$cd linuxptp
$sudo make
$sudo make install
$reboot
4. Use ptp4l command.
Ptp4l command options:
Delay mechanism options
-A Automatic mode, E2E mode is selected automatically, and switch to P2P mode when
peer to peer delay request is received
-E E2E mode, request-response delay mechanism (default)
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