ATM Configuration and Management Manual

Glossary
ATM Configuration and Management Manual—522307-003
Glossary-10
instance data
instance data. For each process using a dynamic-link library, a data segment area
containing the global variables used by the library.
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. See also noninteractive mode.
International Telecommunications Union Telecommunications (ITU-T). ITU-T is an
international body of member countries whose task is to define recommendations and
standards relating to the international telecommunications industry. The fundamental
standards for ATM have been defined and published by the ITU-T (previously CCITT).
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.
intrinsic library. See Shared Millicode Library.
I/O controller. The hardware logic that controls computer I/O operations for a particular set
of devices, such as disks, tapes, terminals, or communications lines. See also
ServerNet addressable controller (SAC).
IOP. See input/output process (IOP).
IP. See Internet protocol (IP).
IP address. An address that uniquely identifies a specific host system within a network to
the Internet protocol (IP). An IP address consists of two parts: a network address,
which identifies the network, and a local address, which identifies the host within the
network. IP routes data between source and destination IP addresses.
ITU-T. See International Telecommunications Union Telecommunications (ITU-T).
input/output process (IOP). A running program (part of the operating system) that
manages the I/O functions for one or more ServerNet addressable controllers (SACs)
of the same type.
kilobyte (KB). A unit of measurement equal to 1024 bytes. See also gigabyte (GB),
megabyte (MB), and terabyte (TB).
LAN. See local area network (LAN).
late binding. At load time, binding a symbolic reference in a dynamic-link library (DLL) to a
definition in a loadfile that appears on the program’s loadList rather than the one found
on the DLL’s linker searchList. Late binding occurs in either of the following cases: