TRANSFER Programming Manual

Management Domains
X400 Services
6–6 069138, Update 1 to 040970 Tandem Computers Incorporated
A Private Management Domain (PRMD) can send and receive messages for
members of a private organization. A PRMD can be associated with ADMDs that
perform message transfer to other organizations. A PRMD, unlike an ADMD,
does not provide intermediate message routing for other private organizations. A
PRMD, unlike an ADMD, cannot extend over country boundaries. One or more
PRMDs can be defined for a private organization.
An international corporation, for example, must define at least one PRMD domain for
each set of X.400 nodes within each country of operation. Figure 6-5 shows a sample
X.400 network with three domains in two countries. In this example, domain TDM-1
consists of nodes \A1, \A2, and \A3, with node \A2 as the gateway node. This
network uses ADMD-10 to route messages between countries A and B.
Figure 6-5. An X.400 Network
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7
Country A
PRMD Domain - TDM1
\A1 \A3
Gateway 1
\A2
TDM1 MTA
PRMD Domain - TDM2
PRMD Domain - TDM3
\B1 \B2 \B3
Gateway 2
TDM2 MTA
\B4 \B5
Gateway 3
TDM3 MTA
ADMD Domain
\X1
ADMD-10
MTA
Country B
Originator and Recipient
(O/R) Names
Originator and recipient (O/R) names uniquely identify a UA (or associated user who
uses that UA) within an X.400 network. O/R names are functionally similar to
TRANSFER correspondent names, but O/R names contain additional information
including country name and domain identification.