GL-1
Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows
OL-1394-04
G L O S S A R Y
802.1X
Also called 802.1X for 802.11. 802.1X is the new standard for wireless LAN security, as defined by the
Institute of Electrical and Electronics Engineers (IEEE). An access point that supports 802.1X and its
protocol, Extensible Authentication Protocol (EAP), acts as the interface between a wireless client and an
authentication server, such as a Remote Authentication Dial-In User Service (RADIUS) server, to which the
access point communicates over the wired network.
802.11
The IEEE standard that specifies carrier sense media access control and physical layer specifications
for 1- and 2-megabit-per-second (Mbps) 2.4-GHz wireless LANs.
802.11a
The IEEE standard that governs the deployment of 5-GHz OFDM systems. It specifies the
implementation of the physical layer for wireless UNII bands (see
UNII
,
UNII 1
, and
UNII 2
) and
provides four channels per 100 MHz of bandwidth.
802.11b
The IEEE standard that specifies carrier sense media access control and physical layer specifications
for 5.5- and 11-Mbps 2.4-GHz wireless LANs.
A
Access Point
A wireless LAN data transceiver that uses radio waves to connect a wired network with wireless
stations.
Ad Hoc Network
A wireless network composed of stations without access points.
Alphanumeric
A set of characters that contains both letters and numbers.
Associated
A station is configured properly to allow it to wirelessly communicate with an access point.
B
Bandwidth
Specifies the amount of the frequency spectrum that is usable for data transfer. It identifies the
maximum data rate that a signal can attain on the medium without encountering significant power loss.
BPSK
Binary phase shift keying. A modulation technique used by IEEE 802.11-compliant wireless LANs for
transmission at 1 Mbps.
Broadcast key
rotation
A security feature for use with dynamic WEP keys. If your client adapter uses LEAP or EAP-TLS
authentication and you enable this feature, the access point changes the dynamic broadcast WEP key
that it provides at the interval you select.
