Netgear WPN824 User Manual download pdf (Page 165)

Reference Manual for the RangeMax Wireless Router WPN824

Glossary

202-10072-01, March 2005

IEEE (Institute of Electrical and Electronics Engineers)

A membership organization (www.ieee.org) that includes engineers, scientists and students in electronics

and allied fields. It has more than 300,000 members and is involved with setting standards for computers and

communications.

IEEE 802.11

A set of specifications for LANs from The Institute of Electrical and Electronics Engineers (IEEE). Most

wired networks conform to 802.3, the specification for CSMA/CD based Ethernet networks or 802.5, the

specification for token ring networks. 802.11 defines the standard for wireless LANs encompassing three

incompatible (non-interoperable) technologies: Frequency Hopping Spread Spectrum (FHSS), Direct

Sequence Spread Spectrum (DSSS) and Infrared. WECA’s (Wireless Ethernet Compatibility Alliance – now

Wi-Fi Alliance) focus is on 802.11b, an 11 Mbps high-rate DSSS standard for wireless networks.

Infrastructure mode

A client setting providing connectivity to an access point (AP). As compared to Ad-Hoc mode, whereby PCs

communicate directly with each other, clients set in Infrastructure Mode all pass data through a central AP.

The AP not only mediates wireless network traffic in the immediate neighborhood, but also provides

communication with the wired network. See Ad-Hoc and AP.

IP (Internet Protocol) address

A 32-bit number that identifies each sender or receiver of information that is sent across the Internet. An IP

address has two parts: an identifier of a particular network on the Internet and an identifier of the particular

device (which can be a server or a workstation) within that network.

ISO Network Model

A network model developed by the International Standards Organization (ISO) that consists of seven

different levels, or layers. By standardizing these layers, and the interfaces in between, different portions of

a given protocol can be modified or changed as technologies advance or systems requirements are altered.

The seven layers are:

•Physical

• Data Link

•Network

• Transport

• Session

• Presentation

• Application

The IEEE 802.11 Standard encompasses the physical layer (PHY) and the lower portion of the data link

layer. The lower portion of the data link layer is often referred to as the Medium Access Controller (MAC)

sublayer.

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Netgear WPN824 User Manual Page 165