On one of our Cisco 9300 switches some of the ports have stopped working. The show as not connected despite the fact they are. On three of these ports TDS is constantly running since yesterday.
The devices connected to interfaces Gi1/0/13 and Gi1/0/15 lost network connectivity. They still have PoE but no data. The interfaces status on the switch is "notconnect".
We have tested the cables and there were no issues. We have also tried connecting different devices (using new patch cables) directly into the port but that didn't make a difference. When checking the interfaces we have noticed that on three of them we get "notconnect: TDR running". Upon checking the logs we could not identify any event that could have caused this issue.
At this point there are 4 ports impacted by this (Gi1/0/13, Gi1/0/14, Gi1/0/15, Gi1/0/16).
