Our MXL 10/40 has management port configured with an IP address and management route.

However there doesn't seem to be any way to use AAA servers if the management interface is used for management.

The logical command would be "ip radius source-interface " but the management interface isn't one of the options for this command.

When Radius servers are configured, the switch is unable to reach them.  However the switch is able to ping them with the command ping x.x.x.x source-interface management 0/0.

Is it just not possible to use AAA server authentication in conjunction with the management interface?