As far as I know, if you mirror ports and there are tagged packets on that mirrored ports, it will be copied with VLAN header to the mirror port.
I'm not aware of a feature to encapsulate untagged traffic for a port inside a VLAN tag, which I think is what you are asking.
Others may know if there is a possiblity.
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Herman Robers
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If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check
https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
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