User's Manual

88 | Terminology HP Cloud Network Manager | User Guide
Term Definition
battery-powered. Although mobile and portable systems can be used in
fixed locations, efficiency and bandwidth are compromised compared with
fixed systems.
frequency allocation Use of radio frequency spectrum regulated by governments.
frequency spectrum Part of the electromagnetic spectrum.
hotspot A WLAN node that provides internet connection from a given location. A
business traveler, for example, with a laptop equipped for Wi-Fi can look
up a local hot spot, contact it, and get connected through its network to
reach the internet and their own company remotely with a secure
connection. Increasingly, public places, such as airports, hotels, and
coffee shops are providing free wireless access for customers.
IEEE 802.11 standards The IEEE 802.11 is a set of standards that are categorized based on the
radio wave frequency and the data transfer rate.
POE Power over Ethernet (PoE) is a method of delivering power on the same
physical Ethernet wire used for data communication. Power for devices is
provided in one of the following two ways:
l Endspan— The switch that an AP is connected for power supply.
l Midspan— A device can sit between the switch and APs
The choice of endspan or midspan depends on the capabilities of the
switch to which the AP is connected. Typically if a switch is in place and
does not support PoE, midspan power injectors are used.
PPPoE Point-to-Point Protocol over Ethernet (PPPoE) is a method of connecting
to the internet typically used with DSL services where the client connects
to the DSL modem.
QoS Quality of Service (QoS) refers to the capability of a network to provide
better service to a specific network traffic over various technologies.
RF Radio Frequency (RF) refers to the portion of electromagnetic spectrum in
which electromagnetic waves are generated by feeding alternating current
to an antenna.
Wi-Fi A term for certain types of WLANs. Wi-Fi can apply to products that use
any 802.11 standard. Wi-Fi has gained acceptance in many businesses,
agencies, schools, and homes as an alternative to a wired LAN. Many
airports, hotels, and fast-food facilities offer public access to Wi-Fi
networks.
wired equivalent privacy (WEP) Wired equivalent privacy (WEP) is a security protocol specified in 802.11b,
designed to provide a WLAN with a level of security and privacy
comparable to what is usually expected of a wired LAN. Data encryption
protects the vulnerable wireless link between clients and APs; once this
measure has been taken, other typical LAN security mechanisms such as
password protection, end-to-end encryption, and authentication can be
put in place to ensure privacy.
wireless Describes telecommunications in which electromagnetic waves (rather
than some form of wire) carry the signal over part or all of the
communication path.
Table 36: List of terms