RFC 1838 (rfc1838) - Page 3 of 8

Use of the X

RFC 1838             RFC 822/X.400 Mapping by X.500          August 1995


2.  Omitted Components

   In RFC 1327, it is possible to have omitted components in O/R
   Addresses on either side of the mapping.  A mechanism to represent
   such omitted components is defined in Figure 2.

   The attribute at-or-address-component-type is set to the X.500
   attribute type associated with the omitted component (e.g., at-prmd-
   name).  This mechanism is for use only within the X.400 to RFC 822
   subtree and for the at-associated-or-address attribute.

-----------------------------------------------------------------------
rFC822ToX400Mapping OBJECT-CLASS ::= {
    SUBCLASS OF {domain-component}
    MAY CONTAIN {
        associatedORAddress|
        associatedX400Gateway}
    ID oc-rfc822-to-x400-mapping}

x400ToRFC 822Mapping OBJECT-CLASS ::= {
    SUBCLASS OF {top}
    MAY CONTAIN {                                                   10
        associatedDomain}
    ID oc-x400-to-rfc822-mapping}


associatedORAddress ATTRIBUTE ::= {
    SUBTYPE OF distinguishedName
    SINGLE VALUE
    ID at-associated-or-address}

                                                                    20
associatedX400Gateway ATTRIBUTE ::= {
    SUBTYPE OF mhs-or-addresses
    MULTI VALUE
    ID at-associated-x400-gateway}

associatedDomain ATTRIBUTE ::= {
    SUBTYPE OF name
    WITH SYNTAX caseIgnoreIA5String
    SINGLE VALUE
    ID at-associated-domain}                                        30


             Figure 1:  ObjectClasses for RFC 1327 mappings






Kille                         Experimental