Newly built 12.1.0.2 DataGuard got errors.
Primary Database alert.log:
Mon Sep 11 11:35:59 2017 TT01: Attempting destination LOG_ARCHIVE_DEST_2 network reconnect (3135) TT01: Destination LOG_ARCHIVE_DEST_2 network reconnect abandoned Mon Sep 11 11:35:59 2017 Errors in file /u01/app/oracle/diag/rdbms/ractest/RACTEST1/trace/RACTEST1_tt01_30967.trc: ORA-03135: connection lost contact Error 3135 for archive log file 42 to 'STBTEST' Mon Sep 11 11:35:59 2017 Errors in file /u01/app/oracle/diag/rdbms/ractest/RACTEST1/trace/RACTEST1_tt01_30967.trc: ORA-03135: connection lost contact LNS: Failed to archive log 42 thread 1 sequence 852 (3135)
Standby Database Alert.log
Fatal NI connect error 12170. VERSION INFORMATION: TNS for Linux: Version 12.1.0.2.0 - Production Oracle Bequeath NT Protocol Adapter for Linux: Version 12.1.0.2.0 - Production TCP/IP NT Protocol Adapter for Linux: Version 12.1.0.2.0 - Production Time: 06-SEP-2017 16:50:33 Tracing not turned on. Tns error struct: ns main err code: 12535 TNS-12535: TNS:operation timed out ns secondary err code: 12608 nt main err code: 0 nt secondary err code: 0 nt OS err code: 0 Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=xx.xx.xx.xx)(PORT=63637)) Wed Sep 06 16:50:34 2017 RFS[37]: Possible network disconnect with primary database
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