RFC 1836 (rfc1836) - Page 1 of 11

Representing the O/R Address hierarchy in the X

Network Working Group                                           S. Kille
Request for Comments: 1836                              ISODE Consortium
Category: Experimental                                       August 1995


             Representing the O/R Address hierarchy in the
                    X.500 Directory Information Tree

Status of this Memo

   This memo defines an Experimental Protocol for the Internet
   community.  This memo does not specify an Internet standard of any
   kind.  Discussion and suggestions for improvement are requested.
   Distribution of this memo is unlimited.

Abstract

   This document defines a representation of the O/R Address hierarchy
   in the Directory Information Tree [6, 1].  This is useful for a range
   of purposes, including:

o  Support for MHS Routing [4].

o  Support for X.400/RFC 822 address mappings [2, 5].

                 Object Class               Mandatory
                 ------------               ---------
                 mHSCountry                 M
                 aDMD                       M
                 pRMD                       O
                 mHSX121                    O
                 mHSNumericUserIdentifier   O
                 mHSOrganization            O
                 mHSOrganizationalUnit      O
                 mHSPerson                  O
                 mHSNamedObject             O
                 mHSTerminalID              O
                 mHSDomainDefinedAttribute  O

         Table 1:  Order of O/R Address Directory Components

1.  The O/R Address Hierarchy

   An O/R Address hierarchy is represented in the X.500 directory by
   associating directory name components with O/R Address components.
   An example of this is given in Figure 1.  The object classes and
   attributes required to support this representation are defined in
   Figure 2.  The schema, which defines the hierarchy in which these



Kille                         Experimental