The figure shows a line from the middle tier to the load balancer that is fronting the source Oracle Identity Management instance, which is now running only Oracle Internet Directory and Oracle Directory Integration and Provisioning (OracleAS Single Sign-On and Oracle Delegated Administration Services have been disabled on this instance). The load balancer is configured with a virtual server name: oid.mydomain.com (as the LDAP virtual server name).

The figure also shows a line from the middle tier to the Real Application Clusters database that is running the OracleAS Metadata Repository.