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Cisco Aironet 802.11a/b/g Wireless LAN Client Adapters (CB21AG and PI21AG) Installation and Configuration Guide
OL-4211-03
GLOSSARY
16-QAM
Quadrate amplitude modulation. A modulation technique used by IEEE 802.11-compliant wireless
LANs for transmission at 24 and 36 Mbps.
64-QAM
Quadrate amplitude modulation. A modulation technique used by IEEE 802.11-compliant wireless
LANs for transmission at 48 and 54 Mbps.
802.1X
Also called 802.1X for 802.11. 802.1X is the 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.
802.11g
The IEEE standard that specifies carrier sense media access control and physical layer specifications
for 54-Mbps 2.4-GHz wireless LANs.
802.11i
The IEEE standard that defines security standards for wireless LANs. It specifies encryption,
authentication, and key management strategies for wireless data and system security. It includes the
TKIP and AES-CCMP data-confidentiality protocols.
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.
AES-CCMP
Advanced Encryption Standard encryption algorithm using Counter Mode with Cipher Block Chaining
Message Authentication Code Protocol (CCMP). AES-CCMP is the encryption protocol in the 802.11i
standard.
alphanumeric
A set of characters that contains both letters and numbers.
associated
A station is configured properly to enable it to wirelessly communicate with an access point.