I see two problems here.
- The VLAN name is referenced on vNICs or vNIC Templates and possibly in groups. If you change the name, you will need to change everywhere you referenced the name.
- Changing the name requires changing the DN. I believe the only way to do that is to create a new object.
You can kind of see this when you look at a vNIC Template like this:
get-ucsVnicTemplate | Get-UcsVnicInterface | select -first 1
There is no reference to the VLAN ID number. Just a reference to the name.
It isn't that you cannot do what you want to do, It is just the method you are requiring that will make it challenging.