I have a problem i can’t seem to get my head around.
I have a FreeNAS Server with a 2port 10GBit/s SFP+ Card (Chelsio T520-SO-CR)
I have 2 PCs with single port 10GBit/s Mellanox ConnectX Cards
All p2p between Server and PC. I used 2 Copper SFP+ twinax Cables up to now. Worked fine. I needed more distance so i got 2 Cisco FET-10G Fiber Modules and an LC-LC OM3 fiber cabel.
I can’t get a connection between 1 Mellanox Card and the Chelsio Card in the server. However i can get a connection between the 2 Mellanox card.
Do i need to have the same cards on both ends? Why doesn’t it work?
How can i troubleshoot it.
Thanks in advance. I’m a noob