A subtree view can be used to make a portion of the directory information tree (DIT) available to a client by associating a request processor with a base distinguished name (DN).
A subtree views allow you to route operations concerning one set of data to a particular set of data sources and operations concerning another set of data to another set of data sources. Multiple subtree views are involved in processing a request, such as searches that have a scope that is larger than the subtree view.
The subtree view includes using a single base DN to identify the portion of the DIT. They might have hierarchical relationships: for example, one subtree view is configured for dc=example,dc=com and another for ou=People,dc=example,dc=com.
For information about configuring a subtree view, see Configuring Subtree Views.