The N2L service supports Oracle Directory Server Enterprise Edition. Other third-party LDAP servers might work with the N2L service, but they are not supported by Oracle. If you are using an LDAP server other than the Oracle Directory Server Enterprise Edition server or compatible Oracle servers, you must manually configure the server to support RFC 2307, RFC 2307bis and RFC 4876, or their successors' schemas.
If you are using the Oracle Directory Server Enterprise Edition, you can enhance the directory server to improve performance. To make these enhancements, you must have LDAP administrator privileges on the Oracle Directory Server Enterprise Edition. In addition, the directory server might need to be rebooted, a task that must be coordinated with the server's LDAP clients. The Oracle Directory Server Enterprise Edition documentation is available on the Sun Java System Directory Server Enterprise Edition 6.2 web site. (Use your favorite search engine to search on "oracle.com: sun java system directory server enterprise edition".)