Ethernet Support Guide (for HP-UX 11i v1, 11i v2)

Glossary
103
Glossary
Numerics
802.1p: IEEE Standard supplement, now
incorporated in IEEE 802.1D. Defines 8 priority
levels for traffic classification at the data link level
and suggests how they might be used.
802.1Q: IEEE Standard that specifies the
architecture for VLAN tagging, association, and
VLAN-capable bridges.
1000Base-SX: A specific implementation of 1000
Mbit/s operating over two multimode fiber cables, as
specified in Standard IEEE 802.3z/D.50-1998.
1000Base-T: A specific implementation of 1000
Mbit/s operating over four-pair Cat-5 or Cat-5e UTP
cables, as specified in IEEE 802.3ab standards.
A
Alias: Name of the interface that corresponds to a
given Internet address on a system.
Autonegotiation: A mechanism defined in IEEE
802.3u-1995 whereby devices sharing a link segment
can exchange data and automatically configure
themselves to operate at the highest capability mode
shared between them. This is also used for link
configuration per IEEE 802.3z and IEEE 802.3ab
standards of duplex and flow control configuration
between two 1000Base-SX/T links.
C
Card Instance Number: A number that uniquely
identifies a device within a class. A class of devices is
a logical grouping of similar devices.
D
Destination Address: A field in the message
packet format identifying the end node(s) to which
the packet is being sent.
DHCP: Dynamic Host a Configuration Protocol
DLPI: Data Link Provider Interface. An
industry-standard definition for message
communications to STREAMS-based network
interface drivers.
E
Ethernet: A 10 Mbit/s LAN, developed by Digital
Equipment Corporation, Intel and Xerox
Corporation, upon which the IEEE 802.3 network is
based.
F
Fast Ethernet: A commonly used name applied to
100Base-T.
Full-Duplex Mode: A mode of media utilization
whereby data can flow in both directions
simultaneously across the multiple wire pairs of a
physical link. While full-duplex operation is not
defined per se in the IEEE 802.3u-1995 specification,
the specification does define a mechanism for this
mode to be autonegotiated between devices on each
end of a link. Full-duplex mode is typically found on
switches.
H
Half-Duplex Mode: The media utilization mode of
IEEE 802.3u-1995 networks whereby data can flow
in only one direction at a time across the multiple
wire pairs of a physical link.
Hardware Path: An identifier assigned by the
system according to the physical location (slot) of the
card in the hardware backplane. On HP servers, the
I/O subsystem identifies each La card by its
hardware path.
Host Name: Name of system on the network.
Hub: A network interconnection device that allows
multiple devices to share a single logical link
segment.
I
IEEE: The Institute of Electrical and Electronics
Engineers. A national association whose activities
include publishing standards applicable to various
electronic technologies. The IEEE technical
committees are numbered and grouped by area. The
802.3 committee produced the standard for LAN
networks.