TCP/IP (Parallel Library) Migration Guide

Glossary
HP NonStop TCP/IP (Parallel Library) Migration Guide—522272-003
Glossary-5
Internet Protocol
Internet Protocol. A data communications protocol that handles the routing of data through
a network, which typically consists of many different subnetworks. IP is connectionless.
It routes data from a source address to a destination address.
interoperability. (1) Within an HP NonStop™ node, the ability to use the features or
facilities of one environment from another. For example, the gtacl command in the
Open System Services (OSS) environment allows an interactive user to start and use a
Guardian tool in the Guardian environment. (2) Among systems from multiple vendors
or with multiple versions of operating systems from the same vendor, the ability to
exchange status, files, and other information. Product externals and end-user
publications for the NonStop range of servers often use the term connectivity in this
context.
IOMF. See I/O multifunction board (IOMF) CRU.
I/O multifunction board (IOMF) CRU. A NonStop S-series customer-replaceable unit
(CRU) that contains a power supply, a service processor, a ServerNet router, an
Ethernet controller, an external ServerNet port, and three SCSI ServerNet addressable
controllers (SACs) in a single unit. The IOMF CRU consists of three subassemblies:
the multifunction I/O board (MFIOB), the ServerNet buffer board (SBB), and the power
supply subassembly.
IPC. Inter-process communication.
LAN. See local area network (LAN).
LAN (local area network). Any physical network technology that operates at high speed
(usually tens of megabits per second through several gigabits per second) over short
distances (up to a few thousand meters).
LIF. See logical interface (LIF).
LLC (Logical Link Control). See LLC (Logical Link Control).
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.