Glossary
B
beacon | A wireless LAN packet that signals the availability and presence of the wireless |
| device. Beacon packets are sent by access points and base stations; however, |
| client radio cards send beacons when operating in computer to computer (Ad |
| Hoc) mode. |
BOOTP
BPSK
Boot Protocol. A protocol used for the static assignment of IP addresses to devices on the network.
Binary phase shift keying is a modulation technique used by IEEE
broadcast packet A single data message (packet) sent to all addresses on the same subnet.
C
CAPWAP | Control And Provisioning of Wireless Access Points |
CCK | Complementary Code Keying. A modulation technique used by IEEE |
| |
CCKM | Cisco Centralized Key Management. Using CCKM, authenticated client devices |
| can roam from one access point to another without any perceptible delay during |
| reassociation. An access point on your network provides wireless domain |
| services (WDS) and creates a cache of security credentials for |
| client devices on the subnet. The WDS access point's cache of credentials |
| dramatically reduces the time required for reassociation when a |
| client device roams to a new access point. |
cell | The area of radio range or coverage in which the wireless devices can |
| communicate with the base station. The size of the cell depends upon the speed |
| of the transmission, the type of antenna used, and the physical environment, as |
| well as other factors. |
client
CSMA
A radio device that uses the services of an access point to communicate wirelessly with other devices on a local area network.
Carrier sense multiple access. A wireless LAN media access method specified by the IEEE 802.11 specification.
D
data rates
dBi
The range of data transmission rates supported by a device. Data rates are measured in megabits per second (Mb/s).
A ratio of decibels to an isotropic antenna that is commonly used to measure antenna gain. The greater the dBi value, the higher the gain, and the more acute the angle of coverage.
| Cisco Aironet 1550 Series Outdoor Mesh Access Point Hardware Installation Guide |
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