16.3.18 ORA-12560

Indicates that a lower-level communication protocol adapter error has occurred.

Message

ORA-12560: Database communication protocol error.

Cause

This error may be due to incorrect configuration of an ADDRESS parameter, or may occur due to errors returned from the underlying protocol or operating system interface.

In some cases, these errors are caused by the same conditions that cause TNS-00510, TNS-00519, TNS-12540, ORA-12540, TNS-12549, or ORA-12549 errors.

Action

  1. Check for lower-level network transport errors in the error stack for additional information.

  2. Ensure that the protocol specification used in the address for the connection is correct.

  3. For further details, turn on network tracing and rerun the operation. Turn off tracing when the operation is complete.

  4. Contact Oracle Support Services.

Parent topic: Resolving the Most Common Error Messages for Oracle Net Services