Extreme Networks Summit WM3000 Series Reference Manual page 135

The Radius Configuration screen contains tabs for defining both the Radius and NAC server
settings. For NAC overview and configuration information, see
on page 138.
6 Refer to the Server field and define the following credentials for a primary and secondary Radius
server.
Summit WM3000 Series Controller System Reference Guide
"Configuring NAC Server Support"
135