How to list supported link modes under Win10 ? (trying 56GbE, Mellanox 353A)

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MichalPL

Active Member
Feb 10, 2019
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I need your help :)

I am trying to run 56GbE on super old Mellanox Connect-X 3 353A cards flashed to 353A-FCBT firmware.

Is it any method to list "supported link modes" and "advertised link modes" on Windows 10 ?
something like "ethtool" from Linux ?

I need to find working cables (in my box with QSFP - some of them are "FDR" or "EDR") and transceivers :)

If I install 2 cards (both 353A) in one PC and connect it together using proper cable the link speed should be 56G automatically not 40G ? or should I force 56G somehow and disable autonegotiation? or maybe connect card with Mellanox SX6036 (don't have it but have plan to buy it when working) with ports forced to 56G.

Thanks!
 

MichalPL

Active Member
Feb 10, 2019
189
25
28
Ok 56GbE on Win10 works :), Workaround is Linux machine next to Windows, proper (Mellanox FDR) cable, and testing all speeds by configuring it on the Linux side.