OSI/MHS Configuration and Management Manual

Configuring Your OSI/MHS Subsystem
OSI/MHS Configuration and Management Manual—424827-003
5-3
Message Flow
name of the NonStop system on which the Transfer X400 gateway resides gets
mapped to the X.400 organization name.)
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Routing criteria are based on organization name.
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Routes are defined such that all message traffic between MTA1 and MTA3 is
relayed through MTA2.
•
A catchall route is defined for both MTA1 and MTA3 to forward all messages
unknown within this network to MTA2. This makes future expansion of the network
and its connection to other X.400 MTAs possible.
•
Each MTA has its own OSI/AS and OSI/TS configuration.
•
MTA2 uses X.25 normal mode connections.
•
MTA3 uses X.25 normal mode and LAN connections.
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MTA1 has multiple gateways and a P7 application.
•
MTA1 includes distribution lists and a closed user group.
•
MTA1 uses X.25 normal mode, X.25 1980 mode, and LAN connections.
Message Flow
An example of possible message flow through this network is shown in Figure 5-2.