3Com 3CRWEASYA73 / WL-575 User Manual page 328

Broadcast Key
Broadcast keys are sent to stations using 802.1X dynamic keying. Dynamic broadcast key
rotation is often used to allow the access point to generate a random group key and periodically
update all key-management capable wireless clients.
CSMA/CA
Carrier Sense Multiple Access with Collision Avoidance.
Dynamic Host Configuration Protocol (DHCP)
Provides a framework for passing configuration information to hosts on a TCP/IP network. DHCP
is based on the Bootstrap Protocol (BOOTP), adding the capability of automatic allocation of
reusable network addresses and additional configuration options.
Encryption
Data passing between the access point and clients can use encryption to protect from
interception and evesdropping.
Extended Service Set (ESS)
More than one wireless cell can be configured with the same Service Set Identifier to allow mobile
users can roam between different cells with the Extended Service Set.
Extensible Authentication Protocol (EAP)
An authentication protocol used to authenticate network clients. EAP is combined with IEEE
802.1X port authentication and a RADIUS authentication server to provide "mutual
authentication" between a client, the access point, and the a RADIUS server
Ethernet
A popular local area data communications network, which accepts transmission from computers
and terminals.
File Transfer Protocol (FTP)
A TCP/IP protocol used for file transfer.
Hypertext Transfer Protocol (HTTP)
HTTP is a standard used to transmit and receive all data over the World Wide Web.
IEEE 802.11a
A wireless standard that supports high-speed communications in the 5 GHz band using
Orthogonal Frequency Division Multiplexing (OFDM). The standard supports data rates of 6, 12,
24, and 54 Mbps.
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