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3203045 - ORA-12543: TNS:destination host unreachable - after RDBMS upgrade


After databaes upgrade, connection fails with:

4 ETW000  [     dev trc,00000]  Connecting as SAPSR3/<pwd>@<SID> on connection 0 (nls 0) ... (dbsl 722 290421, UNICODE[2])
4 ETW000  [     dev trc,00000]  OCIHandleAlloc(con=0, env=2b37940): New service svc=2b684f0 created, rc=0
4 ETW000  [     dev trc,00000]     OCIServerAttach(OCI_DEFAULT) failed with SQL error 12543:
4 ETW000  [     dev trc,00000]     ORA-12543: TNS:destination host unreachable



  • Oracle RDBMS 
  • SAP Netweaver 
  • Any OS platform


SAP Supply Chain Management 7.0


KBA , BC-DB-ORA , Oracle , Problem

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