Triple Speed Ethernet Internal Loopback Error

Hi Maximilien,

I would suggest you use another interface such as GMII or SGMII because Triple Speed Ethernet IP Core with RGMII mode has not been able to close timing .

For further information, you may refer to link below https://www.intel.com/content/www/us/en/support/programmable/articles/000077033.html?wapkw=triple%20speed%20ethernet%20RGMII

Best regards,

Zi Ying