@Clive_A Yes both switches have same firmware. And Yes on both red arrows are SM5310-T. I understand 10Gbps is heating, but now there are not apllication or traffic for 10Gbps I just testing network....

@Clive_A Hi, between the rack position I have 3 cables FTP CAT 6A. I tried all and same result. But now I have this configuration: In main RACK1 I use the SM5310-T in SFP+ port. In second RACK2 I...

@kubajzs197 Switch both SG3428XMP v3.20 3.20.3 Modules are versions 1.2 - same type on both sides. Switch configured 10Gb/s on SFP+ ports. Somewhere is the problem i try uplink with the metalic cable...

Hi everyone, I use two modules SM5310-T v 1.2 with two indentical omada switch SG3428XMP v3.20. between module and patchpanel CAT 6 UTP 0,25m cable, lenght of CAT6A FTP cable 40meters. Same on both...