You can use DSCC to perform this task. For information, see Directory Service Control Center Interface and the DSCC online help.
Create a data source for each LDAP server as described in Creating and Configuring LDAP Data Sources.
Create two data source pools as described in Creating and Configuring LDAP Data Source Pools.
Attach the data sources that contain dc=example1,dc=com to data-source-pool-1, and the data sources that contain dc=example2,dc=com to data-source-pool-2, as described in Attaching LDAP Data Sources to a Data Source Pool.
(Optional) Configure load balancing.
For information, see Configuring Load Balancing.
Create a data view with a base DN at dc=example1,dc=com that refers to data-source-pool-1.
$ dpconf create-ldap-data-view -h host1 -p 1389 dataview-1 \ data-source-pool-1 dc=example1,dc=com
Create another data view with a base DN at dc=example2,dc=com that refers to data-source-pool-2.
$ dpconf create-ldap-data-view -h host1 -p 1389 dataview-2 \ data-source-pool-1 dc=example2,dc=com
The other properties of the data views are the same as the default data view in Default Data View.
If necessary, restart the instance of Directory Proxy Server for the changes to take effect.
For information about restarting Directory Proxy Server, see To Restart Directory Proxy Server.