ConnTTL, NetworkTimeout, and ProtocolVersion were missing from the

config OC, thus inaccessible from cn=config

servers/slapd/back-ldap/config.c

@@ -373,6 +373,9 @@ static ConfigOCs ldapocs[] = {
 			"$ olcDbProxyWhoAmI "
 			"$ olcDbTimeout "
 			"$ olcDbIdleTimeout "
+			"$ olcDbConnTtl "
+			"$ olcDbNetworkTimeout "
+			"$ olcDbProtocolVersion "
 			"$ olcDbSingleConn "
 			"$ olcDbCancel "
 			"$ olcDbQuarantine "