10gb direct connection troubles

[chriswheelz]

hey guys!!

 

im trying to do a direct connect from a windows 10 Pro machine to an unraid 6.9.2 machine. i bought 2 MNPA19-XTR 10GB Mellanox ConnectX-2 cards and a 35' sfp+ cable. Both the windows machine and the Unraid machine see the card just fine, I can move data between folder and edit file names without trouble. the problem arises when i try to move data between the machines. The transfer speed drops to 0, if i get any transfer speed its in the low kb range. I have posted my unraid diagnostics. Not sure if there that type of function for windows

 

thanks for the help!! im still very new to unraid!!

 

chris

badwolf-diagnostics-20220113-0637.zip

[JorgeB]

Jan 12 09:08:43 BadWolf kernel: mlx4_en: eth1: Link Down
Jan 12 09:08:43 BadWolf kernel: mlx4_en: eth1: Link Up
Jan 12 09:08:52 BadWolf kernel: mlx4_en: eth1: Link Down
Jan 12 09:08:53 BadWolf kernel: mlx4_en: eth1: Link Up
Jan 12 09:09:26 BadWolf kernel: mlx4_en: eth1: Link Down
Jan 12 09:09:26 BadWolf kernel: mlx4_en: eth1: Link Up
Jan 12 09:09:26 BadWolf kernel: mlx4_en: eth1: Link Down
Jan 12 09:09:26 BadWolf kernel: mlx4_en: eth1: Link Up
Jan 12 09:26:04 BadWolf kernel: mlx4_en: eth1: Link Down
Jan 12 09:26:05 BadWolf kernel: mlx4_en: eth1: Link Up
Jan 12 09:26:05 BadWolf kernel: mlx4_en: eth1: Link Down
Jan 12 09:26:05 BadWolf kernel: mlx4_en: eth1: Link Up

 

10GbE link is constantly going up/down, try with a different cable, also note that max cable length for direct attach active cables is 10m (about 33feet).

[chriswheelz]

ok...ill give that a shot!!

 

thanks

[chriswheelz]

That did it!!...thanks for the tip!!