XOS 9.5.3 and newer adds a new Radius configuration parameter " fallback-to-local auth". The following is a description of the command and the parameters.
CBS# configure radius-server host <IP_address> key <word> fallback-to-local
Fallback to local auth [permit-all, permit-root, disable] Default is permit-all
1. permit-all (default)
All users can authenticate using either the local password or the Radius password.
2. permit-root
Only admin and root accounts can authenticate using the local password.
3. disable
When the Radius server is up, all users have to authenticate to the Radius server. The local password will not work unless the radius server is not available.
Workaround
N/A