OK, might be that I'm wrong.
In the Extreme XOS Concept Guide 15.4 they talk about "Configuring Command Authorization"...
"If command authorization is disabled, the user has full access to all CLI commands.
If commandauthorization is enabled, each command the user enters is accepted or rejected based on the content of the profiles file on the RADIUS server.
For more information on RADIUS server configuration for command authorization, see Configuring Command Authorization (RADIUS Profiles)."
Unfortunately the link to "see Configuring Command Authorization (RADIUS Profiles)." in the document isn't working so I haven't found a configuration example.
-Ron