Introduction to Networking for NonStop S-Series Servers
Glossary
Introduction to Networking for HP NonStop S-Series Servers—520670-005
Glossary-11
International Standards Organization (ISO)
International Standards Organization (ISO). A worldwide federation of national standards 
bodies established to promote the development of standards, such as network 
communications standards, to facilitate the international exchange of goods and 
services, and to develop mutual cooperation in areas of intellectual, scientific, 
technological, and economic activity.
International Telecommunications Union–Telecommunications (ITU–T). The standards-
writing organization for international telephone carriers. Formerly referred to as the 
International Telegraph and Telephony Consultative Committee (CCITT).
Internet Protocol (IP). The Internet standard protocol that defines the Internet datagram as 
the unit of information passed across the Internet and that provides the basis for the 
Internet connectionless, best-effort packet-delivery service.
Internet Protocol (IP) address. A 4-octet (32-bit) numeric value identifying a particular 
network (network address portion) and a local host on that network (local address 
portion). 
interpersonal message (IPM). A type of message, equivalent to an office memorandum, 
subject to exchange through a message handling system (MHS). The International 
Telecommunications Union–Telecommunications (ITU–T) X.400 Recommendation and 
related standards prescribe a format and protocol for exchange of interpersonal 
messages.
I/O adapter module (IOAM). A collection of modular components that provides I/O 
connectivity and can include ServerNet switch boards, Fibre Channel ServerNet 
adapters (FCSAs), Gigabit Ethernet 4-port ServerNet adapters (G4SAs), fans, and 
power supplies. In the IOAM, each module is a logical entity that represents a single 
service domain.
I/O adapter module enclosure (IOAM enclosure). The sheet-metal carrier that is installed 
in a standard 19-inch rack and contains the IOAM components.
IOAM. See I/O adapter module (IOAM).
IOAM enclosure. See I/O adapter module enclosure (IOAM enclosure).
ISO. See International Standards Organization (ISO).
ITU–T. See International Telecommunications Union–Telecommunications (ITU–T).
LAN. See local area network (LAN).
leased line. A nonswitched line; a telecommunications line on which connections do not 
have to be established by dialing.
line. The specific hardware path over which data is transmitted or received. A line can also 
have a process name associated with it that identifies an input/output process (IOP) or 
logical device associated with that specific hardware path.










