I deployed a VXLAN fabric using Cisco’s Nexus 9K switches recently, and started seeking out the best way to do things. I came up with a few questions that need to be answered first, and a configuration that I believe is best to use for most deployments.
Topology
The below diagram details a VXLAN fabric deployment.
VXLAN Fabric
As you can see, all the VLANs/subnets that are normally configured on switches are placed inside a separate routing table called a tenant VRF. This allows for address separation amongst multiple tenants within the same physical fabric. If only a single tenant uses the fabric, all the traffic processing remains within a tenant VRF.