Elproma NTS-pico3, Руководство пользователя

Страница: 27 / 30

27
Troubleshooting
To troubleshoot NTS-pico3 you need first to log into device console using serial cable or
SSH.
How to check if PTP is working?
From NTS-pico3 console you can check if ptp process is running. If everything is fine, you
shall get 1 in return:
If there is no ptp process you will get 0 (make sure, that you have enabled PTP in web
panel):
How to check if NTS-pico3 sends PTP messages?
To check if NTS-pico3 is actually sending PTP IEEE1588 messages over your LAN
network you use tcpdump utility and see if PTP frames are going out of device:
1) PTP L2 (Ethernet)
To see only PTP (0x88F7) Ethernet packets:
2) PTP L4 (UDP)
To capture PTP UDP transmission we need to dump tcp packets going to ports 319 and
320: