TCP/IP (Parallel Library) Configuration and Management Manual

Glossary
HP NonStop TCP/IP (Parallel Library) Configuration and Management Manual—522271-006
Glossary-12
LAN monitor (LANMON) process.
LAN monitor (LANMON) process. The process provided as part of the ServerNet local
area network (LAN) systems access (SLSA) subsystem that has ownership of the
Ethernet adapters controlled by the SLSA subsystem.
LAPB (Link Access Protocol —Balanced). ITU-T standards that define in the Data Link
Layer the requirements for X.25 connections over wide area networks (WANs).
Level 2. A reference to LINK LEVEL communication (for example, frame formats) or link-
level connections derived from the ISO 7-layer reference model. For long-haul
networks, level 2 refers to the communication between a host computer and a network
packet switch (for example, HDLC/LAPB). For local area networks, level 2 refers to
physical packet transmission. Thus, a level 2 address is a physical hardware address.
Level 3. A reference to NETWORK-level communication derived from the ISO 7-layer
reference model. For the Internet, level 3 refers to the IP and IP datagram formats.
Thus, a level 3 address is an Internet address.
LIF. See logical interface (LIF).
LLC (Logical Link Control). See Logical Link Control (LLC).
local area network (LAN). A network that is located in a small geographical area and
whose communications technology provides a high-bandwidth, low-cost medium to
which low-cost nodes can be connected. One or more LANs can be connected to the
system such that the LAN users can access the system as if their workstations were
connected directly to it.
logical interface (LIF). The interface that allows an application or another process to
communicate with data communications hardware.
Logical Link Control (LLC). An IEEE 802.2 standard for the Data Link Layer of the OSI
Reference Model that defines both connection-oriented and connectionless standards
over LAN networks.
MAC address. See Media Access Control (MAC) Address.
management applications. In DSM, an application process that opens a management or
subsystem process to control a subsystem. This process can issue SPI commands to
subsystems and retrieve EMS event messages to assist in the management of a
computer system or a network of systems. A management application is a requester to
the subsystems to which it sends commands; the subsystems are servers to the
management application.
management process. In DSM, an HP process through which an application issues
commands to a subsystem. A management process can be part of a subsystem, or it
can be associated with more than one subsystem; in the latter case, the management
process is logically part of each of the subsystems. SCP is the management process
for all NonStop data communications subsystems that support DSM. See also
subsystem.