VXLAN Flood and Learn with Multicast

[lagapidis (Lazarus Agapidis)]

Hello YongHun

Take a look at this post which should answer your question:

Introduction to Virtual Extensible LAN (VXLAN)

Hello Patrick Remember that the purpose of VXLANs is not only to surpass the limitation of 4K VLAN IDs, but also to add flexibility to deployments, allowing for the simpler spanning of VLANs across sites. When there is no need to expand beyond that 4K limit, typical customer deployments will use a 1:1 mapping of available VLANs for simplicity. However, when scalability to reach beyond this limit is needed, then it is possible to do so by assigning the same VLAN IDs to multiple unique VNIs fou…

I hope this has been helpful!

Laz