Sysxp
Enthusiast
Enthusiast

Well, I guess any packet with SRC MAC address coming from my LAN back to Cisco can cause this flapping. Lets suppose, that deep down in the network there is a hub, or something bad happening and packet with SRC MAC of the VM comes back.

This way, all I have to do is to filter all packets with VM MAC coming from LAN ports. I will check this once I have the hardware to do it. Still, the flapping stops if no etherchannel is configured between Cisco and Mikrotik, this is strange bc packets can come back in this only working port, but it never happened and flapping only occurs if etherchannel is active.

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