Johann
I rarely look at threads marked as correct. I'm pretty sure others do not as well. In the future, please start a new question thread. In your post you can mention it's similar to this thread and post a URL.
All we are asking is to ensure that when you dictate a VLAN in the VXLAN/VCNI setup, that it is configured in the network fabric. One would hope that your Management Network (vmk0) is on a separate switch from your VM traffic, especially if you have multiple vmnic cards.
This is just an arbitrary example of a linear graph. you just have to fill in the blanks, e.g. replace 2000 / MyCloudDVS / # :
[VXLAN/VCNI configured to use VLAN 2000] --> [Distributed Switch called 'MyCloudDVS'] --> [vmnic#] --> [Wire] --> [Switch Port] --> [Router ?]
The corresponding switch port for each vmnic on the Distributed Switch 'MyCloudDVS' needs to be configured to allow VLAN 2000 and an MTU of 1600.