Enterasys Networks 802.11 Network Card User Manual


 
Glossary
Glossary-4
RADIUS
RADIUS (Remote Authentication Dial-In User Service). RADIUS is an IETF standard
protocol for Authentication, Authorization and Accounting.
Range Extender Antenna
An indoor antenna that extends the coverage area of a RoamAbout wireless device.
Rapid Rekeying
Also known as Key Tumbling, provides frequent, automatic, redistribution of IEEE 802.11
WEP Encryption keys for enhanced security.
RoamAbout AP Manager
Software used to manage and configure one or more APs. The software is installed on a
Windows computer that connects to the AP via a wired LAN or wireless LAN.
Roaming
The ability for a wireless client to move from one cell to another in a wireless network
without losing the network connection.
As the client moves between different wireless cells, the RoamAbout PC Card keeps track of
the quality of the radio connection with the APs. As the client moves away from its AP and
the signal level decreases, the RoamAbout PC Card automatically connects to another AP in
the same network that has a stronger signal level.
SNR
The Signal to Noise Ratio (SNR) is a dynamic indicator that indicates the relative strength of
the radio signal (signal level) versus the radio interference (noise level) in the radio signal
path.
Unicast Message
A data message that is transmitted by one wireless device to another wireless device.
Vehicle-Mount Antenna
A 5 dBi omni-directional antenna that connects to a PC Card in a client to extend the
coverage area. The Vehicle-Mount antenna is designed to be mounted on vehicles, such as
fork-lift trucks that need continuous access to networked data while inside or outside of the
warehouse.