How to bring up the IB port

As shown in the image, the phys state is LINKUP. How can we make the state UP, and why might it not be UP?

mlx5_3

At first try to compare card paramets by command ( or you can set it to factory reset)
mlxconfig -d -q
Then try to check connection

do mlxlink to see link connection errors
mlxlink -d lid-ХХ -p 17/2 -c -e --show_histogram --rx_fec_histogram
also you can check cables
command
mlxcables

Hi Mooyu,

Please share the output of below command:
mlxlink -d mlx5_3 -p 1 -c -m -e --show_device --cable --dump

Thanks,
Yuying

Thank you for your help. Unfortunately, it seems that restarting the device has resolved the issue. I remember that the information I checked with mlxlink before was not different from the normal ports.

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