At one of my sites I have had an ehternet connection between two Cisco 2960s that ran fine for a while now. Sunday storms came through and that connection ceased to work. The switch on one end is trying to send packets, but the other end is dark. Tried moving ports same results, checked cable for connectivity - all pairs good. I can hook my laptop up to this end and get network, plug back into the switch and its gone. I replaced the switch, same. I put a dumb switch on the end of the cable and plugged it into the 2960 and the port comes up, so is it a transmission issue with the cable?
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