# SDS - Correcting Inconsistent RDNs

To correct inconsistent RDNs (where a directory number of a resilient device appears only in the database of one of the resilient pair controllers):

1. Compare the Multiline IP Sets, Single Line IP Sets, and Wireless IP Sets forms of the primary and secondary controllers.

2. From the results of the compare operations, record any directory numbers that only appear on the secondary controllers. Any directory numbers for resilient devices that appear only on the secondary controller are inconsistent RDNs.

3. Go to the Network Elements form on the primary element.

4. Click the check boxes beside the primary and secondary element that you want to synchronize.

5. Click Sync.

6. Select the Data Repair option in the Confirm Sync to Element(s) window.

7. Select only the following form data for synchronization:

8. Devices

9. System Level Call Handling

10. Service Hosting Data

8. Click OK. When the synchronization operation is complete, the inconsistent RDNs are removed from the RDN forms.