B&B Electronics WLNN-AN(ER,SE,SP.EK)-DP551 - Manual - Manual (Page 260)

260 Airborne Enterprise CLI Reference Manual
Basic Service Set
(BSS) A set of 802.11-compliant stations that operate as a connected wireless
network.
Bits per second
(bps) A measurement of data transmission speed over communication lines based
on the number of bits that can be sent or received per second.
BSSID Basic Service Set Identifier. A 48-bit identifier used by all stations in a BSS in
frame headers (usually the MAC address).
Clear channel
assessment A function that determines the state of the wireless medium in an IEEE
802.11 network.
Client Any computer connected to a network that requests services (files, print
capability) from another member of the network.
Command Line
Interface (CLI) A method of interacting with the Air borne™ WLN Module by sending it typed
commands.
DHCP Short for Dynamic Host Configuration Protocol, DHCP is a protocol for
assigning dynamic IP addresses to devices on a network. With dynamic
addressing, a device can have a different IP address every time it connects
to the network. DHCP also supports a mix of static and dynamic IP
addresses.
Direct Sequence
Spread Spectrum
(DSSS) Combines a data signal at the sending station with a higher data rate bit
sequence, which many refer to as
a “chip sequence” (also known as
“processing gain”). A high processing gain increases the signal‟s resistance
to interference. The minimum processing gain that the FCC allows is 10.
Most products operate under 20.
Disassociation service An IEEE 802.11 term that defines the process a station or Access Point uses
to notify that it is terminating an existing association.
Distribution service An IEEE 802.11 station uses the distribution service to send MAC frames
across a distribution system.
EAP Extensible Authentication Protocol, a general protocol supporting multiple
authentication methods used between the client and the authenticator. The
802.1X standard specifies encapsulation methods for transmitting EAP
messages so they can be carried over different media.
EAPOL EAP over LAN, an 802.1X delivery mechanism used in authentication.
EAPOL encapsulates EAP messages between the supplicant and the
authenticator.
ESS Each set of wireless devices communicating directly with each other is called
a basic service set (BSS). Several BSSs can be joined together to form one
logical WLAN segment, referred to as an extended service set (ESS). A
Service Set Identifier (SSID) is the 1-32 byte alphanumeric name given to
each ESS.
GPIO General Purpose Input/Output refers to the digital I/O lines.
Host application The environment within which the Module is embedded. It typically includes a
processor, which forms part of an OEM‟s product and application.
Hot spot Same as an Access Point, usually found in public areas such as coffee
shops and airports.
IEEE Institute of Electrical and Electronic Engineers, an international organization
that develops standards for electrical technologies. The organization uses a
series of numbers, like the Dewey Decimal system in libraries, to differentiate
between the various technology families.
IEEE 802.1X IEEE standard for port-based network control. 802.1X provides multiple
methods to authenticate devices attached to a LAN port and functions with
both wired and wireless LAN media. 802.1X is based on the Extensible
Authentication Protocol (EAP), and features dynamic distribution and
management of session keys. A RADIUS server is required for this security
standard.
IEEE 802.11i IEEE security standard officially ratified in June 2004 as part of the 802.11
family. 802.11i was tested and certified for interoperability by the Wi-Fi
Alliance. In addition to improved encryption, this standard contains the
802.1X standard, improving key management and user authentication.
Independent Basic
Service Set Network
(IBSS Network) An IEEE 802.11-based wireless network that has no backbone infrastructure
and consists of at least two wireless stations. This type of network is often
referred to as an Ad Hoc network because it can be constructed quickly
without too much planning.
Infrastructure mode A client setting providing connectivity to an Access Point. As compared to Ad
Hoc mode, where PCs communicate directly with each other, clients set in
Infrastructure mode all pass data through a central Access Point. The Access
Point not only mediates wireless network traffic in the immediate
neighborhood, but also provides communication with the wired network.
See Ad Hoc and Access Point.
LAN application A software application that runs on a computer that is attached to a LAN,
Intranet, or the Internet, and uses various protocols to communicate with the
Module.
LEAP Lightweight Extensible Authentication Protocol developed by Cisco. LEAP
provides username/password-based authentication between a wireless client
and a RADIUS server. It is one of several protocols used with the IEEE
802.1X standard for LAN port access control.