OSI/MHS Configuration and Management Manual

Introduction to OSI/MHS
OSI/MHS Configuration and Management Manual—424827-003
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OSI/MHS Components
The P1 protocol defines the messages sent between cooperating MTAs. There are
three types of P1 message protocol data units (MPDUs):
•
User message—includes the envelope (which contains information on how to
transfer the message) and its contents.
•
Probe—includes the envelope only. A probe serves as a test to whether you can
send the message.
•
Report—notifies the user whether the mail has been sent.
(In this manual, the term “message” includes all three types of MPDUs.)
The P2 protocol defines the objects used for interpersonal messaging: interpersonal
messages and interpersonal notifications. The same objects are used for the P22
protocol.
The Pedi protocol defines the objects used for electronic data interchange (edi).
The P7 protocol defines the interface between a UA and a message store (MS).
OSI/MHS Components
The basic components of OSI/MHS are:
•
Configuration and control components
•
Message relay (MR) group
•
Message store (MS) group
•
Remote operations service (RS) group
•
Local operations service (LO) group
•
Gateway interface (GI) group
The following subsections examine each component in greater detail.
Configuration and Control
You use the configuration and control components to add new objects to the
subsystem, modify their configurations, inquire about the status of subsystem objects,
and perform other management tasks. OSI/MHS offers the following methods of
configuration and control:
•
The Subsystem Control Facility (SCF) and the Subsystem Control Point (SCP)
provide a command-based user interface. This interface is consistent with the
Distributed Systems Management (DSM) architecture. For general information on
SCF, see the SCF Reference Manual; for information on using SCF with OSIMHS,
see the OSI/MHS SCF Reference Manual.
•
SCP also provides a programmatic interface, which can be used to write
applications for automated operations. This interface is also consistent with the