User's Manual

Glossary
326 Installation and User Guide: NMS Pro
True MIMO™
The Airgo Networks, Inc. implementation of the data multiplexing technique known as
Multiple Input Multiple Output (MIMO). MIMO uses multiple spatially-separated
antennas to increase wireless throughput, range, and spectral efficiency by simultaneously
transmitting multiple data streams on the same frequency channel.
Trunk
In telecommunications, a communications channel between two switching systems. In a wireless
network, a trunk is a wireless connection from one Access Point to another.
Type of Service (ToS)
Sometimes also called IP Precedence, ToS is a system of applying QoS methodologies, based on
headers placed into transmitted IP packets.
User Datagram Protocol (UDP)
A connectionless protocol similar to TCP/IP, but without the same level of error checking. UDP is
commonly used when some small degree of error and packet loss can be tolerated without losing
program integrity, such as for online games.
Virtual LAN (VLAN)
A local area network with a definition that addresses network nodes on some basis other than
physical location or even whether the systems are wired together or operating using the same local
equipment. VLANs are, on average, much easier to manage than a physically implemented LAN.
In other words, moving a user from one VLAN to another is a simple change in software, whereas
on a regular LAN, the computer or device would need to be connected physically to a different
switch or router to accomplish the same thing. Network management software of some sort is used
to configure and manage the VLANs on a given network.
Wired Equivalent Privacy (WEP)
Security protocol for wireless local area networks (WLANs) defined in the 802.11b standard. Uses
dynamically or manually assigned keys for encryption and authentication, as dictated by the
capabilities of the client station. The WEP algorithms are vulnerable to compromise; therefore,
WEP security is only recommended for legacy clients that do not support the newer generation
security standards.
Windows Internet Name Server (WINS)
The Windows implementation of DNS, which maps IP addresses to computer names (NetBIOS
names). This allows users to access resources by computer name instead of by IP address.
Wi-Fi
A play on the term “HiFi,” Wi-Fi stands for Wireless Fidelity, a term for wireless networking
technologies.
Wireless Local Area Network (WLAN)
A type of local area network that employs radio frequencies to transmit data (usually encrypted),
much like LANs transmit data over wires and fiber optic cables.