What is nsx-t geneve minimum MTU size
Minimum size should be 1600.
Read more in this link: NSX-T Network Requirements and Sizing
Minimum 1600, but 1700 is the recommended minimum to be future proof as NSX-T might start using additional features requiring larger Geneve headers one day.
Or just set it to 9000 and be done with it 😉
do a sure shoot ask always for Jumbo frames, just when you have a WAN link check if possible 1600 sometimes is a challenge to have this as payload size.