If a password is set for VRRP authentication, the authentication type must also be defined. If the password is set and the authentication type is not defined, the system generates an error when you try to commit the configuration.
Similarly, you cannot delete the VRRP password without also deleting the VRRP authentication type. If you do, the system generates an error when you try to commit the configuration.
If you delete both the VRRP authentication password and authentication type, VRRP authentication is disabled.
The IETF decided that authentication is not to be used for VRRP version 3. For more information, refer to RFC 5798.