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EtherFast
®
Layer 3 Management 4-Port Gigabit Ethernet Switch
The IEEE fosters the development of standards that often become national and
international standards. The organization publishes a number of journals, has
many local chapters, and has several large societies in special areas, such as the
IEEE Computer Society.
IGMP (Internet Group Management Protocol) - A multicast host registration
protocol that allows any host to inform its local router that it wants to receive
transmissions addressed to a specific multicast group.
LAN - A local area network (LAN) is a group of computers and associated
devices that share a common communications line and typically share the
resources of a single processor or server within a small geographic area (for
example, within an office building).
Layer 2 - Data Link layer in the ISO 7-Layer Data Communications Protocol.
This is directly related to the hardware interface for network devices and pass-
es traffic based on MAC addresses.
Layer 3 - Network layer in the ISO 7-Layer Data Communications Protocol.
This layer handles the routing functions for data moving from one open system
to another.
MAC Address - The MAC (Media Access Control) address is your computer’s
unique hardware number.
Mbps (MegaBits Per Second) - One million bits per second; unit of measure-
ment for data transmission.
Multicast Routing Protocol - A routing protocol that supports multicast pack-
ets (one to many).
Multicasting - Sends data to a group of nodes instead of a single destination.
Network - A system that transmits any combination of voice, video, and/or
data between users.
Port - A pathway into and out of the computer or a network device such as a
switch or router. For example, the serial and parallel ports on a personal com-
puter are external sockets for plugging in communications lines, modems, and
printers.
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Instant EtherFast
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Full Duplex - The ability of a device or line to transmit data simultaneously in
both directions.
GARP (General Attributes Registration Protocol) - A standard for registering or
deregistering client attributes for client services within a bridged LAN.
GMRP (GARP Multicast Registration Protocol) - Allows network devices to
register endstations with multicast groups. GMRP requires that any participat-
ing network devices or endstations comply with the IEEE 802.1p standard.
GVRP (GARP VLAN Registration Protocol) - Defines a way for switches to
exchange VLAN information in order to register VLAN members on ports
across the network.
Half Duplex - Data transmission that can occur in two directions over a single
line, but only one direction at a time.
Hardware - Hardware is the physical aspect of computers, telecommunications,
and other information technology devices. The term arose as a way to distinguish
the “box” and the electronic circuitry and components of a computer from the pro-
gram you put in it to make it do things. The program came to be known as the soft-
ware.
Hub - The device that serves as the central location for attaching wires from
workstations. Can be passive, where there is no amplification of the signals; or
active, where the hubs are used like repeaters to provide an extension of the
cable that connects to a workstation.
HyperTerminal - A basic communications program that is an accessory for all
Windows operating systems, starting with Windows 95. It enables your com-
puter to communicate with other compatible devices, using either a standard
RS-232 cable, null modem cable, or modem. It can also be referred to as a
VT100 or ANSI terminal application.
IEEE - The Institute of Electrical and Electronics Engineers. The IEEE
describes itself as “the world’s largest technical professional society—promot-
ing the development and application of electrotechnology and allied sciences
for the benefit of humanity, the advancement of the profession, and the well-
being of our members.”