Choose items for 10Gig wisely.
Choose items for 10Gig wisely.
I've never encountered anything like this—it can be quite challenging. If not, just flip the LC connector end.
A few potential issues to consider. 1) RX and TX could be swapped, causing your PC to attempt transmission over the same cable while the switch tries to send it. You can verify this by examining the SFP connections—check the arrow directions and follow the strands accordingly—or by physically separating the two and swapping them (refer to the linked video for guidance). 2) When using third-party SFPs in a Cisco switch, you may need to run specific commands: switch(config)# no errdisable detect cause gbic-invalid switch(config)# service unsupported-transceiver. This helps confirm if the problem lies there. 3) The switch port might be misconfigured, such as being disabled or malfunctioning. 4) There could be a problem on the PC itself, like driver conflicts or incompatible components.