D-Link DWL-3500AP - AirPremier Wireless Switching 108G Access Point Administrator's Manual page 154

D-Link Unified Access Point Administrator's Guide
sequence spread spectrum, etc.).
• The optional Traffic Indication Map (TIM)
identifies stations, using power saving mode, that
have data frames queued for them.
Bridge
A connection between two local area networks
(LANs) using the same protocol, such as Ethernet or
IEEE 802.1X.
Broadcast
A Broadcast sends the same message at the same
time to everyone. In wireless networks, broadcast
usually refers to an interaction in which the access
point sends data traffic in the form of
Frames to all client stations on the network.
Some wireless security modes distinguish between
how unicast, multicast, and broadcast frames are
encrypted or whether they are encrypted.
See also Unicast and Multicast.
Broadcast Address
See IP Address.
BSS
A basic service set (BSS) is an
Wireless Networking Framework
access point. Also see extended service set (ESS) and
independent basic service set (IBSS).
BSSID
In Infrastructure Mode, the Basic Service Set
Identifier (BSSID) is the 48-bit
wireless interface of the
C
CCMP
Counter mode/CBC-MAC Protocol (CCMP) is an
encryption method for 802.11i
employs a CCM mode of operation, combining the
Cipher Block Chaining Counter mode (CBC-CTR)
and the Cipher Block Chaining Message
154 © 2001-2008 D-Link Corporation. All Rights Reserved.
IEEE 802.1X
Infrastructure Mode
with a single
MAC address of the
Access Point.
that uses AES. It
Authentication Code (CBC-MAC) for encryption
and message integrity.
AES-CCMP requires a hardware coprocessor to
operate.
CGI
The Common Gateway Interface (CGI) is a standard
for running external programs from an
It specifies how to pass arguments to the executing
program as part of the HTTP
define a set of environment variables.
A CGI program is a common way for an
server to interact dynamically with users. For
example, an HTML page containing a form can use a
CGI program to process the form data after it is
submitted.
Channel
The Channel defines the portion of the radio
spectrum the radio uses for transmitting and
receiving. Each 802.11 standard offers a number of
channels, dependent on how the spectrum is licensed
by national and transnational authorities such as the
Federal Communications Commission (FCC), the
European Telecommunications Standards Institute
(ETSI), the Korean Communications Commission, or
the Telecom Engineering Center (TELEC).
CSMA/CA
Carrier Sense Multiple Access with Collision
Avoidance (CSMA/CA) is a low-level network
arbitration/contention protocol. A station listens to
the media and attempts to transmit a packet when the
channel is quiet. When it detects that the channel is
idle, the station transmits the packet. If it detects that
the channel is busy, the station waits a random
amount of time and then attempts to access the media
again.
CSMA/CA is the basis of the IEEE 802.11e
Distributed Control Function (DCF). See also
and CTS.
The CSMA/CA protocol used by
a variation on CSMA/CD (used by
networks). In CSMA/CD the emphasis is on collision
HTTP server.
request. It may also
HTTP
RTS
802.11 networks is
Ethernet