'set_failback_interval' sets the interval at which the Adaptive Server housekeeper utility checks for failed LDAP servers. See “Automatic LDAP user authentication and failback”.
Unbinds all established LDAP server descriptors, and reinitializes the LDAP user-authentication subsystem. The syntax is:
sp_ldapadmin 'reinit_descriptors'
Whenever a certification authority trusted root file is modified, the System Security Officer must use reinit descriptors to reinitialize LDAP user authentication. For complete documentation, see sp_ldapadmin in the Reference Manual: Procedures.