Disconnections and reconnections

Hello,

I just purchase a dell server with mellanox connectx 4 lx with sfp28, that according to the specs works in 10G/25G i have a switch with sfp at 1G. When I connect the fiber cable I dont have a connection. It recognize that is connected, but an endless loop of continuous disconnections and re connections is starting Any ideas?

Hi ,

I suggest to check if the switch and the cable is supported

https://docs.mellanox.com/display/cx4lxen

Please refer to 1.2 Supported Cables and Modules and 1.3 Tested Switches:

http://www.mellanox.com/pdf/firmware/ConnectX4Lx-FW-14_24_1000-release_notes.pdf

Thanks,

Samer