Changing Data Guard Protection level

We are in process of testing Data Guard setup. While doing that I come across a situation where I have to change Protection status from status from Maximum Performance to Maximum Availability:
On Primary:
alter system set log_archive_dest_2='SERVICE=Instance_Name LGWR SYNC AFFIRM valid_for=(ONLINE_LOGFILES,PRIMARY_ROLE) db_unique_name=SID;
alter system set log_archive_dest_state_2=enable;


Shutdown and mount the primary and standby database:
SQL> -- [Connect to the primary database]
SQL> SHUTDOWN IMMEDIATE
SQL> STARTUP MOUNT

SQL> -- [Connect to the standby database]
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
SQL> SHUTDOWN IMMEDIATE
SQL> STARTUP NOMOUNT

On Primary
ALTER DATABASE SET STANDBY DATABASE TO MAXIMIZE AVAILABILITY;

On Standby
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;

On Primary
ALTER DATABASE OPEN;

SQL> SELECT PROTECTION_MODE, PROTECTION_LEVEL, DATABASE_ROLE FROM V$DATABASE;

Happy Troubleshooting !!!