Hi all, I have a couple of Catalyst 3850 Switches, if I connect them with a Port-channel I have many Mac address Flapping events and resulting problems on virtual-machines attached to them.
The Port-channel can be of one or more active links but I have the same issue, if I remove this Port-channel and replace it with a single link I don't
have this issue.
In both cases this link between 3850 is correctly blocked by STP.
I suspect that I have a wrong configuration on Switches of Vmware Infrastructure but I don't understand why the single link works and Port-channel doesn't work.
I tried LACP and Static etherchannel but I have the same issue.
Regards
Marco Bergonzoni
