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another network. One network is designated the inside network and the other is the
outside.
NetBEUI (NetBIOS Extended User Interface)
- The transport layer for NetBIOS.
NetBIOS and NetBEUI were originally part of a single protocol suite that was later
separated. NetBIOS sessions can be transported over NetBEUI, TCP/IP, and SPX/IPX
protocols.
NetBIOS
- The native networking protocol in DOS and Windows networks. Although
originally combined with its transport layer protocol (NetBEUI), NetBIOS today provides
a programming interface for applications at the session layer (layer 5). NetBIOS can ride
over NetBEUI, its native transport, which is not routable, or over TCP/IP and IPX/SPX,
which are routable protocols. NetBIOS computers are identified by a unique 15-
character name, and Windows machines (NetBIOS machines) periodically broadcast
their names over the network so that Network Neighborhood can catalog them. For
TCP/IP networks, NetBIOS names are turned into IP addresses via manual
configuration in an LMHOSTS file or a WINS server. There are two NetBIOS modes.
The Datagram mode is the fastest mode, but does not guarantee delivery. It uses a self-
contained packet with send and receive name, usually limited to 512 bytes. If the
recipient device is not listening for messages, the datagram is lost. The Session mode
establishes a connection until broken. It guarantees delivery of messages up to 64KB
long.
Network
- A system that transmits any combination of voice, video, and/or data between
users.
Network Mask
- also known as the “Subnet Mask.”
NIC (Network Interface Card)
- A board installed in a computer system, usually a PC,
to provide network communication capabilities to and from that computer system. Also
called an adapter.
Node
- A network junction or connection point, typically a computer or work station.
Notebook (PC)
- A notebook computer is a battery-powered personal computer
generally smaller than a briefcase that can easily be transported and conveniently used
in temporary spaces such as on airplanes, in libraries, at temporary offices, and at
meetings. A notebook computer, sometimes called a laptop computer, typically weighs
less than five pounds and is three inches or less in thickness.
OFDM
(Orthogonal Frequency Division Multiplexing) - A type of modulation technology
that separates the data stream into a number of lower-speed data streams, which are
then transmitted in parallel. Used in 802.11a, 802.11g, and powerline networking.
Packet
- A unit of data sent over a network.
Packet Filtering
- Discarding unwanted network traffic based on its originating address
or range of addresses or its type (e-mail, file transfer, etc.)
Passphrase
- Used much like a password, a passphrase simplifies the WEP encryption
process by automatically generating the WEP encryption keys for Corinex products.
Ping (Packet INternet Groper)
- An Internet utility used to determine whether a
particular IP address is online. It is used to test and debug a network by sending out a
packet and waiting for a response.
Plug-and-Play
- The ability of a computer system to configure expansion boards and
other devices automatically without requiring the user to turn off the system during
installation.
