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G
gateway address
(1) In transmission control protocol/Internet protocol (TCP/IP), a
device that connects two systems that use the same or different proto-
cols. (2) In TCP/IP, the address of a router to which a device sends
frames destined for addresses not on the same physical network (for
example, not on the same Ethernet) as the sender. The hexadecimal
format for the gateway address is XXX.XXX.XXX.XXX.
Gb
See gigabit.
GB
See gigabyte.
Gbps
Acronym for gigabits per second.
generic port
G_Port. Physical interface on a director or switch that can function
either as a fabric port (F_Port) or an expansion port (E_Port), depend-
ing on the port type to which it connects. See also
sion
GHz
See gigahertz.
Gb. A unit of measure for data storage, equal to approximately
gigabit
134,217,728 bytes. Approximately one eighth of a gigabyte.
gigabyte
GB. A unit of measure for data storage, equal to 1,073,741,824 bytes.
Generally approximated as one billion bytes (D).
GHz. One billion cycles per second (Hertz) (D).
gigahertz
G_Port
See
graphical user
GUI. A visually oriented interface where the user interacts with rep-
interface
resentations of real-world objects displayed on the computer screen.
Interactions with such objects produce actions that are intuitive to the
user (D).
ground
That portion of a conducting circuit connected to the earth (D).
GSM card
A generic port (G_Port) module card containing shortwave laser
ports for multimode fiber-optic cables.
See
GUI
port;
fabric
port;
node
generic
port.
graphical user
interface.
bridge
port;
segmented expansion
port;
expan-
port.
Glossary
537
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