Prepare a cluster for VXLAN in NSX
Preparing a cluster for VLAN is very simple, it only takes a few clicks and will install the vibs required for NSX on the hosts in the cluster. The only prerequisite, is that you need to configure an IP Pool that the vmkernel adapters will use for VXLAN communication.
Step 1. Log into the vSphere Web Client and navigate to Networking & Security -> Installation -> Host Preparation
Step 2. Select Install under Installation for the cluster you would like to prepare for VXLAN.
Step 3. When prompted, click Yes
Step 4. Once the cluster shows Ready, click Configure under VXLAN
Step 5. Specify a VLAN (if applicable), MTU (1600 or higher), IP Pool, and Teaming Policy then hit OK
You should see the VXLAN status show Enabled