Replication keeps data in multiple directory servers synchronized. Advanced replication includes the following function:

• Allows specific subtrees within the Directory Information Tree (DIT) to be chosen for participation in advanced replication topologies (in contrast to requiring the entire backend to participate or not participate)
• Allows the subtrees participating in an advanced replication environment to have different roles (for example, supplier or consumer)
• Additional replication topology choices can be combined to serve many different directory information architectures and data redundancy requirements
• External error log management using extended operations
• Operational attributes to determine the current state of the advanced replication environment
• External queue management using extended operations
• Password policy updates
• Schema replication