Quanta LB6M port down

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Pierre Grothe

New Member
Jul 27, 2018
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Hi guys,

I'm new with these Quanta LB6M switches and I'm running into some issues. I connected two ports of each of my vSphere ESXi servers to the switch for my home lab.
At first, every port are working just perfect but after some time. The second port shuts down.
I tried using the "no shut" command on the down ports without any success.
I tried connecting the cables to a different port on the switch without success
I tried connecting a cable to a port that was active (previously connected to an active port on a different ESXi host) and the port gets shut immediately and comes back as soon as I reconnect the previous cable.
I verified that there was no MAC ACL, I disabled the spanning tree protocol. I don't where to look at now.

Thanks,