Point to other servers

Use referral objects to point to the other servers for subordinate references, that is, portions of the namespace below this server that it does not service directly.

Referral objects, like other objects, go in the backend (DB2®). Referral objects consist of following attributes:
dn:
Specifies the distinguished name. It is the portion of the namespace that is served by the referenced server.
objectclass:
Specifies the value of the objectclass referral.
ref:
Specifies the LDAP web address of the server. This web address consists of the ldap:// identifier, thehostname:port, and a DN. The identifier can be either a host name string or a TCP/IP address. The DN requires a slash (/) before it to delimit it from the hostname:port, and must match the DN of the referral object. The DN specified in the value of the referral attribute must match the DN of the referral object. Typically, it is an entry in a naming context at or below the naming context that is held by the referencing server.
dn:o=sample
objectclass:referral
ref:ldap://9.130.25.51:389/o=sample