OSI/MHS Configuration and Management Manual

Introduction to OSI/MHS

OSI/MHS Configuration and Management Manual—424827-003

1-31

Application Interfaces With OSI/MHS

There are three interfaces you can use to integrate messaging applications with

OSI/MHS: the Transfer X.400 gateway, the general user gateway (based on the

Gateway Programmatic Interface), and the P7 Application Programmatic Interface.

Transfer X400 Gateway

The Transfer X400 gateway provides communication between the Transfer subsystem

and the OSI/MHS subsystem. The Transfer X400 gateway allows users of Transfer

applications such as PS Mail to send and receive messages through the X.400

network.

You can configure as many as 16 gateways for an OSI/MHS subsystem. You define

the gateway to the OSI/MHS subsystem through the GATEWAY object and the APPL

object in SCF.

For more information about the Transfer X400 gateway, see the Transfer Installation

and Management Guide.

Gateway Components

The Transfer X400 gateway uses the Queue Manager to connect the Transfer

subsystem to the OSI/MHS subsystem. Figure 1-16 provides an overview of these

components.

The Transfer X400 gateway consists of the Queue Manager plus the importer

processes and the exporter processes, the Transfer database servers, and the

Transfer database files. An importer process receives messages from OSI/MHS. An

exporter process sends messages to OSI/MHS.

The Queue Manager consists of one or more entry manager processes, the wait

manager process, and the queue file. The queue file contains three logical queues:

the ADMIN queue with entries for MR group registration, the MESSAGE queue with

entries for import work, and the EXPORT queue with entries for export work. For more

information about the Queue Manager, see Section 6, Starting, Stopping, and Updating

Your OSI/MHS Subsystem, and the Queue Manager Manual.

The OSI/MHS subsystem component that communicates with the Transfer X400

gateway is the MR group. When the MR group starts, the MR process establishes a

connection with an entry manager process in the Queue Manager.

The MR process sends configuration information regarding its PDU store and the

OSI/MHS manager process name to the ADMIN queue. For each message to be

transferred to the Transfer X400 gateway, the MR process sends a message entry to

the MESSAGE queue.