Ethernet Adapter Installation and Support Guide

Glossary
Ethernet Adapter Installation and Support Guide—425684-003
Glossary-44
HP Tandem Failure Data System (TFDS)
HP Tandem Failure Data System (TFDS). A diagnostic tool that is a component of the HP
NonStop™ Kernel operating system. The TFDS tool isolates software problems and
provides automatic processor-failure data collection, diagnosis, and recovery services.
hybrid shared run-time library (hybrid SRL). A shared run-time library (SRL) that has
been augmented by the addition of a dynamic section that exports the SRL’s symbols
in a form that can be used by position independent code (PIC) clients. A hybrid SRL
looks like a dynamic-link library (DLL) to PIC clients (except it cannot be loaded at
other addresses and cannot itself link to DLLs). The code and data in the SRL are no
different in a hybrid SRL, and its semantics for non-PIC clients are unchanged.
Hz. See hertz (Hz).
I18N. See internationalization.
IBC. See in-band control (IBC).
ICMP. See Internet control message protocol (ICMP)
identifier. A unique name, for example, TANDEM^FILES^TO^COPY, in the CONFTEXT file
that refers to a text string (one or more file names as given in the CONFAUX file).
When Distributed Systems Management/Software Configuration Manager (DSM/SCM)
encounters an identifier, it substitutes the text string for the identifier.
ideogram. See ideograph.
ideograph. A character or symbol representing a word or idea. Some writing systems, such
as Japanese and Chinese, use thousands of ideographs. An ideograph is sometimes
called an “ideogram.”
IEC. International Electrotechnical Committee. IEC is a professional organization that
creates or adopts standards for computer hardware, environments, and physical
interconnections.
IEEE. Institute of Electrical and Electronics Engineers. IEEE is a professional organization
whose committees develop and propose computer standards that define the physical
and data link protocols of entities such as communication networks.
IEEE 802.3 protocol. Institute of Electrical and Electronics Engineers (IEEE) standard
defining the hardware layer and transport layer of (a variant of) Ethernet. The
maximum segment length is 500 meters and the maximum total length is 2.5
kilometers. The maximum number of hosts is 1024. The maximum packet size is 1518
bytes.
impedance. The total opposition (that is, resistance and reactance) a circuit provides to the
flow of alternating current at a given frequency.