'389'
Requird. Specifies the Distinguished Name of the entrey to be added in the LDAP Server. One must give the Relative Distinguished Names (RDN) in the hirarical manner i.e. from root to the leaf. All components of the name except for the last RDN component must exist for the add to succeed.
e.g.
o Adv.com (Root)ou Administeration (Leaf)