求大佬指点

db_recovery_file_dest_size  足够 

RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 01/10/2024 17:18:51
RMAN-05501: aborting duplication of target database
RMAN-03015: error occurred in stored script Memory Script
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 01/10/2024 17:18:51
ORA-17627: ORA-12543: TNS:destination host unreachable
ORA-17629: Cannot connect to the remote database server