In iManager, when you edit the LDAP Server object, it usually sends a command to eDir to reload NLDAP on the server you changed. There is a Refresh LDAP Server button to force it as well.
If you have ndstrace open with +LDAP flag set, try it and you can see iManager do it. Same as unload nldap then load nldap.
In IDConsole 1.9, there is no refresh LDAP Server option I could see and it does not seem to refresh when you save.
Anyone else notice this?