We are using the SFP-10G-T on an NXP LX2160A platform.
The module successfully auto-negotiates with a 1G laptop and traffic passes correctly. However, the host always reports:
Port: FIBRE
Supported link modes: 10000baseSR/Full
Speed: 10000Mb/s
The SFP EEPROM also appears to advertise only 10G optical-style host capabilities. Is the SFP-10G-T designed to expose a fixed 10G host-side interface while performing copper-side auto-negotiation internally?
If so, is there any mechanism (MDIO, vendor-specific EEPROM page, diagnostics page, etc.) that allows a host system to retrieve the actual negotiated RJ45 speed (100M/1G/2.5G/5G/10G)?
Thank you.