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Domain Name System server. A server that translates text names into IP
DNS
addresses. The server maintains a database of host alphanumeric names and their
corresponding IP addresses.
Direct sequence spread spectrum. A type of spread spectrum radio transmission
DSSS
that spreads its signal continuously over a wide frequency band.
E
Extensible Authentication Protocol. An optional IEEE 802.1x security feature
EAP
ideal for organizations with a large user base and access to an EAP-enabled
Remote Authentication Dial-In User Service (RADIUS) server.
The most widely used wired local area network. Ethernet uses carrier sense
Ethernet
multiple access (CSMA) to allow computers to share a network and operates at
10, 100, or 1000 Mbps, depending on the physical layer used.
F
A repository for files so that a local area network can share files, mail, and
file server
programs.
Software that is programmed on a memory chip.
firmware
G
A device that connects two otherwise incompatible networks.
gateway
Gigahertz. One billion cycles per second. A unit of measure for frequency.
GHz
I
Institute of Electrical and Electronic Engineers. A professional society serving
IEEE
electrical engineers through its publications, conferences, and standards
development activities. The body responsible for the Ethernet 802.3 and wireless
LAN 802.11 specifications.
The wired Ethernet network.
infrastructure
The Internet Protocol (IP) address of a station.
IP address
The number used to identify the IP subnetwork, indicating whether the IP
IP subnet mask
address can be recognized on the LAN or if it must be reached through a
gateway. This number is expressed in a form similar to an IP address; for
example: 255.255.255.0.
An antenna that radiates its signal in a spherical pattern.
isotropic
OL-4059-01
Cisco Aironet 1400 Series Wireless Bridges Software Configuration Guide
Glossary
GL-3
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