An SD-WAN instance is not deployed if the number of controller nodes specified in the SD-WAN instance template does not match the actual number of controller nodes of the SD-WAN instance.
To select the number of SD-WAN instance controller nodes:
A table of SD-WAN instance templates is displayed.
The settings area is displayed. You can expand the settings area to fill the entire page by clicking the expand icon . By default, the Information tab is selected, which displays the name of the SD-WAN instance template.