Supported Cable Mode issues!

Infrastructure & Networking Adapters and Cables Ethernet Adapter Cards
1

Hello,

I have a 3m breakout cable (Vendor PN : MCP7F00-A003R30L) which is listed to be a supported cable for ConnectX-6 DX NIC.
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But unfortunately the link is not up with 100G speed. When checking the mlxlink
Enabled Link Speed : 0x00f00000 (100G)
Supported Cable Speed : 0x08001005 (25G,10G,1G)

there is no 100G in Supported Cable Speed. Nevertheless the same cable with ConnectX-4, link is successfully up with 100G.

mlxlink (ConnectX-4) shows:
Enabled Link Speed : 0xf8f1f0d3 (100G,50G,40G,25G,10G,1G)
Supported Cable Speed : 0x48101165 (100G,56G,50G,40G,25G,20G,10G,1G)

Is it possible to make this cable work with 100G on Connectx-6. If so how could it be done?

Thanks,

2

Any help regarding this? The same cable doesn’t work with connectX5 as well.

3

Try to do command mlxcables to show supported modes and cable EEPROM