Glossary
DFS | Dynamic Frequency Selection. In some regulatory domains, |
| required to use DFS to avoid interfering with radar signals. |
DHCP | Dynamic host configuration protocol. A protocol available with many operating |
| systems that automatically issues IP addresses within a specified range to |
| devices on the network. The device retains the assigned address for a specific |
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domain name | The text name that refers to a grouping of networks or network resources based |
| on |
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| provider (such as an ISP); |
DNS
DSSS
Domain Name System server. A server that translates text names into IP 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 that spreads its signal continuously over a wide frequency band.
E
EAP
Ethernet
Extensible Authentication Protocol. An optional IEEE 802.1x security feature ideal for organizations with a large user base and access to an
The most widely used wired local area network. Ethernet uses carrier sense multiple access (CSMA) to allow computers to share a network and operates at 10, 100, or 1000 Mb/s, depending on the physical layer used.
F
file server
firmware
A repository for files so that a local area network can share files, mail, and programs.
Software that is programmed on a memory chip.
G
gateway | A device that connects two otherwise incompatible networks together. |
GHz | Gigahertz. One billion cycles per second. A unit of measure for frequency. |
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| Cisco Aironet 1550 Series Outdoor Mesh Access Point Hardware Installation Guide |
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