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802.11n Access Points - Software Management Guide 170
Bridge An interface connecting a local area network to another local area
network that uses the same protocol (for example, wireless, Ethernet or
token ring). Wireless bridges are commonly used to link buildings in
campuses.
Broadcast Broadcast traffic is a large series of broadcast packets (most often caused
by wrong network configuration) that severely impact the network
performance.
Broadband In data communications, a "broadband connection" is a connection with
a high speed of data transfer, fast enough to support a video streaming.
Broadcast SSID (BSSID) BSSID refers to the MAC address of the wireless client within an Access
Point (AP) coverage area.
C
Client IP Address Pool This a pool of IP addresses from which the unit can assign IP addresses to
clients, which perform a DHCP Request.
Carrier Sense Multiple Access with
Collision Avoidance (CSMA / CA)
It is a wireless network multiple access method in which:
• A carrier sensing scheme is used.
• A node wishing to transmit data has to first listen to the channel to
determine whether or not another node is transmitting on the
channel within the wireless range. If the channel is sensed "idle,"
then the node is permitted to begin the transmission process. If the
channel is sensed as "busy," the node defers its transmission for a
random period of time. Once the transmission process begins, it is
still possible for the actual transmission of application data to not
occur.
Contention Window (CW) Contention Window is a set of time slots, that helps in configuring the
random backoff timer value, that should be within the Contention
Window range (i.e) from CWmin to CWmax, where CWmin varies
between each of the queues. See Access Category
Every wireless client waits for this random backoff timer value set, to
access the wireless medium. This avoids collision over the medium, giving
an equal chance to every wireless station on the network to access the
medium.
Cyclic Redundancy Check (CRC) A cyclic redundancy check (CRC) is an error-detecting code commonly
used in digital networks and storage devices to detect accidental changes
to raw data. Blocks of data entering these systems get a short check value
attached, based on the remainder of a polynomial division of their
contents; on retrieval the calculation is repeated, and corrective action can
be taken against presumed data corruption if the check values do not
match.
B
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