OSI/MHS Orientation Guide

Building Your Message Handling System
OSI/MHS Orientation Guide—424829-001
1-8
Setting Up a Messaging Network or Hub
Setting Up a Messaging Network or Hub
One or more NonStop systems can serve as a messaging network or hub providing
X.400 services to a distributed community of users.
What You Need to Do
You can use NonStop systems to provide an X.400 service through connections to many
different kinds of computers and devices at which users work or where messaging
applications run.
Figure 1-4 illustrates the network of an X.400 service provider. The NonStop systems
provide connections among messaging applications, such as electronic mail and
Figure 1-3. User Task Diagram
003CDT .CDD
Legend
1984 X.400
Network
X.400
Network
Non-X.400
Network
OSI/MHS
MTA
GW = Gateway Application
RUA = Remote User Agent
LUA = Local User Agent
GPI = Gateway Programmatic
Interface Compaq Provides
EDI
Application
OSI/MHS
MTA
GPI
X.25
Network
RUA
MS
P7API GPI
GW
RUA
RUA RUARUA
Asynchronous
LUA
GW
Accounting
& Billing
OSI/
MHS
MTA
Management
Tools
Transfer X400
Gateway
OSI/MHS
MTA
Other
Apps.
PS
Mail
1
2
3
4
5
6
8
9
10
NSDS
X.500
Directory
7
11