C2960x-8pc-l Strange Ports LED status

[sonhaeun87]

Greating everyone,

recently i had very strange experience with C2960X-8PC-L Model.

Swtich information is here

1. VERSION - 15.2(4)E3

2. Using 5 PoE - AP 2702E Model

3. 2 Uplink - with 2 GLC-SX-MMD (Multi Fiber cable)

4. Power source is UPS

The situation like this. The Network works find all time, 

but when i pull out the one of the optic fiber cable, 

all other port's LED change into orange status.

around atfer 5secs, LED came Green.

*There's no Log.

*There's no wireless network disconnect.

*and other Switch(same model, same configuration, same ap number, same uplink... all same) is not experience this problem.

what do you guys think?

is there anyone how experience same problem? 

thank you for reading!

Have a nice day~

[Mark Malone]

Did you check spanning-tree outputs during the time against the disconnect ?

why do you think its a problem did something break did you see a fault on the network  , sounds like some convergence went on for a second whether visible to the network layer or not

Check the cpu history as well and try and reoplicate the issue so you can run some commands at same time