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ITU-T X.518 (10/2012)

Information technology – Open Systems Interconnection – The Directory: Procedures for distributed operation

Recommendation ITU-T X.518 | ISO/IEC 9594-4 specifies the procedures required for a distributed directory consisting of a mix of Directory System Agents (DSAs) and lightweight directory access protocol (LDAP) servers acting together to provide a consistent service to its users, independent of the point of access. It also describes procedures for protocol conversion between the directory access protocol/directory system protocol (DAP/DSP) protocols and the LDAP protocol.

Citation:	https://handle.itu.int/11.1002/1000/11740
Series title:	X series: Data networks, open system communications and security X.500-X.599: Directory
Approval date:	2012-10-14
Identical standard:	ISO/IEC 9594-4:2014 (Common)
Approval process:	AAP
Status:	Superseded
Maintenance responsibility:	ITU-T Study Group 17
Further details:	Patent statement(s) Development history

EditionsImplementer's guide(s)Formal description(s)Related technical papers and reports

Ed.	ITU-T Recommendation	Status	Summary	Table of Contents	Download
9	X.518 (10/2019)	In force	here	here	here
8	X.518 (10/2016)	Superseded	here	here	here
7	X.518 (10/2012)	Superseded	here	here	here
6.2	X.518 (2008) Cor. 2 (10/2012)	Superseded	-	here	here
6.1	X.518 (2008) Cor. 1 (02/2011)	Superseded	-	here	here
6	X.518 (11/2008)	Superseded	here	here	here
5.2	X.518 (2005) Cor. 2 (02/2011)	Superseded	-	here	here
5.1	X.518 (2005) Cor. 1 (05/2008)	Superseded	-	-	here
5	X.518 (08/2005)	Superseded	here	here	here
4.2	X.518 (2001) Cor. 2 (05/2008)	Superseded	-	-	here
4.1	X.518 (2001) Technical Cor. 1 (05/2005)	Superseded	-	-	here
4	X.518 (02/2001)	Superseded	here	here	here
3.3	X.518 (1997) Technical Cor. 2 (02/2001)	Superseded	-	here	here
3.2	X.518 (1997) Amd. 1 (03/2000)	Superseded	here	-	here
3.1	X.518 (1997) Technical Cor. 1 (03/2000)	Superseded	-	here	here
3	X.518 (08/1997)	Superseded	here	here	here
2	X.518 (11/1993)	Superseded	-	-	here
1	X.518 (11/1988)	Superseded	-	here	here

Title	Approved on	Download
Directory Implementers' Guide for ITU-T X.500-series - Version 15, August 2001	2001-09-07	here
Directory Implementers' Guide for ITU-T X.500-series - Version 14, March 2001	2001-03-01	here

X.518 (2012-10)

Index of all ASN.1 assignments defined in this Recommendation.

Click here to download all the modules of this Recommendation (zipped archive)

Click here to download all the modules needed to compile this Recommendation (zipped archive)

Language	Title	OID	Obs.	Last update
ASN.1	DistributedOperations	2.5.1.3.7		2012-10-30
ASN.1	HierarchicalOperationalBindings	2.5.1.20.7		2012-10-30

Title	Approved on	Download
Guidelines for identity-based cryptosystems used for cross-domain secure communications	2023	here
Overview of hybrid approaches for key exchange with quantum key distribution	2022	here
Guidelines for security management of using artificial intelligence technology	2022	here
Successful use of security standards (2nd edition)	2020	here
Description of the incubation mechanism and ways to improve it	2020	here
Strategic approaches to the transformation of security studies	2020	here

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ITU-T Recommendations

ITU-T X.518 (10/2012)