G L O S S A R Y

802.11

The IEEE standard that specifies carrier sense media access control and physical

 

layer specifications for 1- and 2-megabit-per-second (Mbps) wireless LANs

 

operating in the 2.4-GHz band.

802.11a

802.11b

The IEEE standard that specifies carrier sense media access control and physical layer specifications for wireless LANs operating in the 5-GHz frequency band.

The IEEE standard that specifies carrier sense media access control and physical layer specifications for 5.5- and 11-Mbps wireless LANs operating in the 2.4-GHz frequency band.

802.11g

802.3af

The IEEE standard that specifies carrier sense media across control and physical layer specifications for 6, 9, 12, 18, 24, 36, 48, and 54 Mbps LANs operating in the 2.4-GHz frequency band.

The IEEE standard that specifies a mechanism for Power over Ethernet (PoE). The standard provides the capability to deliver both power and data over standard Ethernet cabling.

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.

antenna gain

The gain of an antenna is a measure of the antenna’s ability to direct or focus

 

radio energy over a region of space. High gain antennas have a more focused

 

radiation pattern in a specific direction.

associated

A station is configured properly to allow it to wirelessly communicate with an

 

Access Point.

B

backoff time

The random length of time that a station waits before sending a packet on the

 

LAN. Backoff time is a multiple of slot time, so a decrease in slot time ultimately

 

decreases the backoff time, which increases throughput.

Cisco Wireless ISR and HWIC Access Point Configuration Guide

 

OL-6415-04

GL-1

 

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Image 169
Cisco Systems OL-6415-04 manual Operating in the 2.4-GHz band, Network with wireless stations, Access Point