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Bidirectional

This tab is only applicable to bidirectional replication tasks. When you click Bidirectional in the Task Settings dialog box, the Loopback Prevention tab is displayed. In bidirectional replication, loopback prevention is a mechanism that prevents the same data from being replicated back and forth in an endless loop. To enable loopback prevention, you need to specify a source and target Loopback prevention table schema.

Bidirectional replication consists of two separate tasks: Task 1 captures changes made to Endpoint A and replicates them to Endpoint B. Task 2 captures changes made to Endpoint B and replicates them to Endpoint A. When configuring Task 1 of a bidirectional replication setup, the source loopback prevention table schema must be identical to the target loopback prevention table schema specified in the Loopback Prevention settings of Task 2.

Likewise, when configuring Task 2 of a bidirectional replication setup, the source loopback prevention table schema must be identical to the target loopback prevention table schema specified in the Loopback Prevention settings of Task 1.

Note:

Oracle schemas are case-sensitive. Therefore, when specifying an Oracle table schema, make sure to use the correct case in the Loopback Prevention settings in both Tasks.

For instructions on setting up bidirectional replication, see Bidirectional replication.