NonStop S-Series Hardware Installation and FastPath Guide (G06.26+)

Glossary
HP NonStop S-Series Hardware Installation and FastPath Guide529876-001
Glossary-53
instruction processing unit (IPU)
instruction processing unit (IPU). A processing unit that executes programs by fetching
instructions from memory and executing them.
insulated ground. A grounding conductor with a dielectric (low-conductance) insulator
around it to prevent inadvertent contact with metal conduits.
intelligent SCSI processor (ISP). The ServerNet addressable controller (SAC) that
controls the small computer system interface (SCSI) bus.
interactive mode. A mode of operation that is characterized by having the same input and
output device (a terminal or a process) for the session. If a terminal is used, a person
enters a command and presses Return. If a process is used, the system interface waits
for the process to send a request and treats the process in the same manner as a
terminal. Contrast with noninteractive mode.
internal routing. The routing of packets within an HP NonStop™ server. See also external
routing.
internal ServerNet fabrics. The fabrics that link ServerNet devices within an HP
NonStop™ server. See also external ServerNet fabrics.
internal ServerNet X or Y fabric. The X or Y fabric that links ServerNet devices within an
HP NonStop™ server. See also fabric.
internationalization. The process of designing and coding software so that it can be
adapted to meet the needs of different languages, cultures, and character sets, with
the ability to handle various linguistic and cultural conventions. Internationalization
methods enable the processing of character-based data independently of the
underlying character encoding, allowing choice among character sets. Sometimes
referred to as I18N, derived from the 18 letters between the initial I and the final N of
the word internationalization. See also character set.
Internet address. The 32-bit address assigned to hosts that want to participate in the
Internet using Transmission Control Protocol/Internet Protocol (TCP/IP). Internet
addresses are an abstraction of physical hardware addresses, just as the Internet is an
abstraction of physical networks. As assigned to the interconnection of a host to a
physical network, an Internet address consists of a network portion and a host portion.
See also IP address.
Internet control message protocol (ICMP). A maintenance protocol in the Transmission
Control Protocol/Internet Protocol (TCP/IP) suite that is required in every TCP/IP
implementation. The ICMP allows two nodes on an IP network to share IP status and
error information. The ICMP is used by the ping utility to determine the readability of a
remote system. See also IP address and ping.
Internet protocol (IP). 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. See
also IP address.