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Change Notification Process in AD

1) When a change to an object occurs on a domain controller, the domain controller waits for a configurable interval. This interval is 5 minutes by default.

2) When the interval has passed, the domain controller sends a notification message to its replication partners, informing them of the change.

3) The domain controller continues to accept changes during this interval.

When the replication partners receive the change notification, they copy the changes from the originating domain controller.

4) If no changes occur during a configurable period (6 hours by default)

5) A domain controller initiates a replication sequence with its replication partners to ensure that no changes were missed.