OSI/AS Management Programming Manual

OSI/AS Subsystem Architecture
Introduction
1–4 056785 Tandem Computers Incorporated
Control-and-Inquiry
Interface
Figure 1-2 illustrates the management interface to OSI/AS for commands and
responses.
For management of the OSI/AS subsystem, the Subsystem Control Point (SCP)
process is required. This process provides control-and-inquiry management interfaces
to a number of Tandem data communications subsystems. Commands are sent to
SCP, which forwards them to the appropriate subsystems or, in the case of a small
number of commands, handles them itself. SCP is used internally by the SCF
interactive interface, as well as by management applications you write.
As shown in Figure 1-2, SCP sends each OSI/AS command to the appropriate process
(OSI manager, TAPS, TSP, or NSP). Management applications send programmatic
commands formatted as Subsystem Programmatic Interface (SPI) buffers, and receive
responses from the subsystem in the same format.
For more information about the OSI manager process, the MIB, and how to manage
the OSI/AS subsystem, refer to the Tandem OSI/AS Configuration and Management
Manual. For more information about the use of SCP by management applications,
refer to the Communications Management Programming Manual.
As mentioned earlier, the software for the TSP and NSP processes is not actually part
of the Tandem OSI/AS product, but is provided by other products that are used with
it—OSI/TS for TSP processes, and either X25AM or TLAM for NSP processes.
However, the OSI/AS product provides certain management functions for these
lower-layer processes. Therefore, this manual and related manuals often discuss the
TSP and NSP processes as if they were part of the OSI/AS subsystem.
This manual describes only commands supported by the OSI manager and TAPS
processes. This support includes a full range of operations on TAPS processes and on
the OSI manager process itself, a more limited number of operations on TSP processes,
and a minimal number of operations on NSP processes. You can perform a larger set
of management operations on TSP processes using the commands described in the
Tandem OSI/TS Management Programming Manual. Likewise, you can perform a larger
set of operations on NSP processes using the commands described in the X25AM
Management Programming Manual and the TLAM Management Programming Manual.