Implicit log switch in primary

Oracle 19c

In Howto make a consistent RMAN backup in an Standby database in Active DataGuard mode (Doc ID 1419923.1)

in note 3, The logswitch on primary is NOT required in 11.2.0.4 and above anymore.

in my standby database, the log switch is not happening in primary since the standby cannot connect in primary.

the Dataguard is sync and able to connect in standby and primary.

DBGSQL: sqlcode = 17629 <================================= error code 17629

DBGSQL: B :primary_dbuname = GGDLX01P <============ tns alias name

DBGSQL: B :lprimary_db_cs = GGDLX01P

DBGSQL: error: ORA-17629: Cannot connect to the remote database server (krmkosqlerr)

DBGSQL: ORA-06512: at "SYS.DBMS_BACKUP_RESTORE", line 9230 (krmkosqlerr)