Hi,
Thanks for your posting!
Based on your descriptions, firstly, I may need more information about how did you configure your switchport mode trunk on our Hyper-V, for instance, which kind of virtual switch did you use?
Secondly, I may suggest you to ask for suggestions from technical supporters working for Cisco because your issue seems to be more related with this third party product, as you said above. Cisco Nexus NX5548 switch is not our product and I am not so sure how it works with Hyper-V.
Thanks for your understanding! And I will keep investigating this issue for you.
BR,
Joan
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