MAC flapping with SET vSwitch RRS feed

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  • Hi ,

    Thanks for your posting here.

    >>The flapping MACs are only from some VMs on some hosts and in case also MACs of the pNICs on the host.

    It's really strange. I have discussed with my colleagues and we did not find any related official document talking about this phenomenon.

    I would suggest you open a case with Microsoft, more in-depth investigation can be done so that you would get a more satisfying explanation and solution to this issue. Here is the link:

    It is also appreciated that the other members in our forum can share their experience with us about this scenario.

    Best Regards,


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    Monday, November 11, 2019 7:54 AM