Chapter 6 Deploying Wireless Networks for FortiOS 5.0 : Wireless Mesh : Configuring a meshed WiFi network : Creating custom AP profiles
  
Creating custom AP profiles
You can apply the automatic AP profile or create one or more custom AP profiles for the mesh root and branch/leaf APs. A custom profile provides more control over which radio channels are used, intrustion protection, load balancing, background rogue AP scanning, and so on. Typically, the custom profiles are configured so that Radio 1 (5GHz) carries the mesh backhaul SSID while Radio 2 (2.4GHz) carries the SSIDs to which users connect.
For more information, see “Creating a custom AP Profile”.