OSI/FTAM Configuration and Management Manual

Glossary
OSI/FTAM Configuration and Management Manual—421944-001
Glossary-5
network service access point (NSAP)
network service access point (NSAP). The logical point at which network service provider
(NSP) process services are provided by the Network Layer entity to the Transport Layer
entity. See also network service access point (NSAP) address.
network service access point (NSAP) address. The global, network-unique address of an
end system’s network service access point (NSAP)
, through which network service
provider (NSP) process services are provided.
network service provider (NSP) process. A process in the Open Systems Interconnection
(OSI) subsystem that performs service and protocol functions for the Network Layer
and, for local area networks (LANs), some functions of the Data Link Layer. NSP
processes are provided by the underlying X.25 Access Method (X25AM), Tandem LAN
Access Method (TLAM), Tandem NonStop TCP/IP, or Port Access Method (PAM)
subsystems.
nonsensitive command. A Distributed Systems Management (DSM)
command that can be
issued by any user or program allowed access to the target subsystem—that is, a
command on which the subsystem imposes no further security restrictions. For Tandem
data communications subsystems, the nonsensitive commands are all those that cannot
change the state or configuration of objects (usually information commands).
NSAP. See network service access point (NSAP)
.
NSAP address. See network service access point (NSAP) address
.
object-name template. In Distributed Systems Management (DSM)
, a name that stands for
more than one object. Such a name includes one or more wildcard characters, such as
* (asterisk) and ? (question mark).
Open Systems Interconnection (OSI). A set of standards used for the interconnection of
heterogeneous computer systems, thus providing universal connectivity.
Open Systems Interconnection (OSI) address. The address of an object on the network,
which includes the network service access point (NSAP)
, transport selector (TSEL),
session selector (SSEL), and presentation selector (PSEL). See also Open Systems
Interconnection (OSI).
Open Systems Interconnection (OSI) manager process. A process in the Open Systems
Interconnection (OSI) subsystem that performs subsystem management functions,
including management of the Management Information Base (MIB). There is one OSI
manager process per OSI subsystem. See also Open Systems Interconnection (OSI).
Open Systems Interconnection (OSI) Reference Model. A communications architecture,
adopted by the International Standards Organization (ISO) in 1984, that includes seven
layers that define the functions involved in communications between two systems, the
services required to perform these functions, and the protocols associated with these
services. See also Open Systems Interconnection (OSI)
.