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PCMCIA (Personal Computer Memory Card
International Association) Card: Removable
module that adds features to a portable
computer.
Ping (Packet Internet Groper): An Internet
utility used to determine whether a
particular IP address is online.
Plug and Play: Hardware that, once
installed (“plugged in”), can immediately
be used (“played”), as opposed to hardware
that requires manual conguration.
PoE (Power over Ethernet): A mechanism
to send DC power to a device using a CAT5
Ethernet cable.
PPPoE (Point-to-Point Protocol over
Ethernet): A specication for connecting
users on an Ethernet line to the Internet
through a common broadband medium.
Protocol: A standard way of exchanging
information between computers.
MIB II: A database containing performance
information for each device in a network.
MIPS (Million Instructions Per Second): A
measurement of processing speed.
NAT (Network Address Translation): An
internet standard that enables a LAN to
use one set of IP addresses for internal
trafc and a second set for external trafc.
NIC (Network Interface Card): An
expansion card that allows a computer can
be connected to a network.
Packet: A block of data transferred
together. Also called a frame or block.
Packet Filtering: Discarding unwanted
network trafc based on its originating
address or its type.
PCI (Peripheral Component Interconnect):
A bus that is connected directly to the
CPU.
Glossary
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