TCP/IP Management Programming Manual

Glossary
HP NonStop TCP/IP Management Programming Manual—529636-001
Glossary-4
Defense Advanced Projects Research Agency
(DARPA)
Defense Advanced Projects Research Agency (DARPA). Formerly called ARPA. The
government agency that funded research and experimentation with the ARPANET and
DARPA Internet.
data communications standard definitions. In DSM, the set of declarations provided by
Tandem for use in all management programs that manage or retrieve event messages
from Tandem data communications subsystems. The names of these definitions start
with either ZCOM or ZCMK. See also definition or definition files. Compare SPI
standard definitions or EMS standard definitions.
data list. In DSM programmatic interfaces, a group of tokens used to separate response
records within an SPI message for a response, or used to enclose a single response
record, if the program so requests. A data list consists of a list token that denotes a
data list (different from the token that starts an error list or a generic list), followed by a
response record and an end-list token. See also response record.
Defense Data Network (DDN). Used to loosely refer to the MILNET, ARPANET, and the
TCP/IP protocols they use. More literally, it is the MILNET and associated parts of the
Internet that connect military installations.
definition. One of the declarations provided by Tandem for use in applications that call APS
or SPI procedures. These definitions are provided in definition files. See also definition
files.
definition files. A set of files containing declarations for use in applications that call SPI
procedures. SPI has a standard definition file for the Data Definition Language (DDL)
and one for each of the programming languages supporting SPI; the latter files are
derived from the DDL definition file. Likewise, each subsystem that has a token-
oriented programmatic interface has one definition file for DDL and one for each
programming language. Some subsystems for instance, data communications
subsystems have additional, shared definition files. See also SPI standard definitions,
data communications standard definitions, or EMS standard definitions.
Distributed Systems Management (DSM). A set of tools used to manage NonStop
systems and EXPAND networks. These tools include the VIEWPOINT console
application, the Subsystem Control Facility (SCF) for data communications
subsystems, the Subsystem Programmatic Interface (SPI), the Event Management
Service (EMS), the Distributed Name Service (DNS), and token-oriented programmatic
interfaces to the management processes for various NonStop subsystems.
distributor. An EMS process that distributes event messages from event logs to requesting
management applications, to Guardian console message destinations, or to a collector
on another node. See also consumer distributor. and compatibility distributor. Contrast
collector.
DNS. See Domain Name Server (DNS).