Hi [NAME],   Based from the networking support team that I consulted, he mentioned that you need to create VLANs according to your network needs, on both spine switches and the leaf switches as well.    Here's a small Dell article for reference just incase if you need: [URL]
Hello All, I have created a VLTI config between two spines (S4810) and working as expected. my question is do i need to create VLANs on another spine as well or will it sync over VLTI ? on this spine 4 leaf conneted. so do i need to create a VLANs on leaf as well ?   Thank you        
VLTI vlans