RFC 2589 (rfc2589) - Page 1 of 12

Lightweight Directory Access Protocol (v3): Extensions for Dynamic Directory Services

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Network Working Group                                         Y. Yaacovi
Request for Comments: 2589                                     Microsoft
Category: Standards Track                                        M. Wahl
                                            Innosoft International, Inc.
                                                             T. Genovese
                                                               Microsoft
                                                                May 1999


              Lightweight Directory Access Protocol (v3):
               Extensions for Dynamic Directory Services

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (1999).  All Rights Reserved.

1.  Abstract

   This document defines the requirements for dynamic directory services
   and specifies the format of request and response extended operations
   for supporting client-server interoperation in a dynamic directories
   environment.

   The Lightweight Directory Access Protocol (LDAP) [1] supports
   lightweight access to static directory services, allowing relatively
   fast search and update access.  Static directory services store
   information about people that persists in its accuracy and value over
   a long period of time.

   Dynamic directory services are different in that they store
   information that only persists in its accuracy and value when it is
   being periodically refreshed.  This information is stored as dynamic
   entries in the directory.  A typical use will be a client or a person
   that is either online - in which case it has an entry in the
   directory, or is offline - in which case its entry disappears from
   the directory.  Though the protocol operations and attributes used by
   dynamic directory services are similar to the ones used for static
   directory services, clients that store dynamic information in the
   directory need to periodically refresh this information, in order to
   prevent it from disappearing.  If dynamic entries are not refreshed



Yaacovi, et al.             Standards Track
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