Hello Marcelo,
Many thanks for posting your question on the Mellanox Community.
Based on the information provided, you are using a ConnectX adapter. This adapter is EOL and EOS for a while now.
Unfortunately the ethtool option ‘-m’ is not supported by this adapter.
Many thanks,
~Mellanox Technical Support
Thank you very much for responding.
Since you cannot use the ethtool-m command as an optical diagnostic support Tx power levels (Laser output power) and Rx power (Receiver signal average optical power), temperature, voltage and alarm threshold settings.
What tool should I use to see those parameters on MT26448?
We use Debian 8.11
Linux 3.16.0-4-amd64 # 1 SMP Debian 3.16.43-2 + deb8u3 (2017-08-15) x86_64 GNU / Linux
Without further ado, my best regards
Marcelo