Introduction to Tandem X.25 Capabilities

Appendix C Utilities for Managing X25AM
065307 Tandem Computers Incorporated C–1
The X25AM subsystem supports a variety of management and information utilities
that can be used to manage, troubleshoot, and maintain X25AM processes, lines, and
subdevices. This section presents an overview of these utilities:
Distributed Systems Management (DSM)
Peripheral Utility Program (PUP)
Dynamic System Configuration (DSC)
Tandem Maintenance and Diagnostic System (TMDS)
Measure
Distributed Systems
Management
DSM provides an architecture and standard interfaces that help you build new
applications and subsystems. DSM includes a number of products, many of which are
standard parts of the Guardian 90 operating system and others which are optional.
Some of the DSM interfaces that you may wish to use to manage an X25AM subsystem
are described below.
Subsystem Programmatic
Interface (SPI)
SPI is a standard DSM interface that can be used to write applications that
communicate with DSM subsystems. SPI can be used to build commands, decode
responses, and obtain event messages. This interface provides support for the
automation of operator functions. SPI message formats for the X25AM subsystem are
described in the X25AM Management Programming Manual.
Subsystem Control Facility
(SCF)
SCF is a standard DSM interface that can be used to interactively control, configure,
and monitor the X25AM subsystem. SCF must be used to add and configure
subdevices for X25AM lines. SCF can also be used to change characteristics of X25AM
lines. Detailed information on the SCF interface for X25AM is described in the SCF
Reference Manual for X25AM.
Note X25AM is also supported by the Configuration Management Interface (CMI) on C-series and prior
systems. However, not all the features of X25AM are available through CMI. Support for CMI is
discontinued with the D-series release of X25AM.
Viewpoint Console
Application
The Viewpoint console application is an optional DSM interface that enables you to
control a system or network from a single terminal. You can use Viewpoint to control
X25AM subsystems. Viewpoint runs a Pathway application and provides a set of
screens to display the following items:
Line status
Event screens (to show current or past events for any subsystem or system in the
network)
Viewpoint is an easy-to-use user application that allows you to view information from
the network in several different ways. You can also customize Viewpoint so that it