Siemens 11 - Manual (Page 45)

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Appendix
Gigaset USB Adapter 11 / en / A31008-E105-B102-1-7619 / appendix.fm / 06.12.2002
Glossary
10BaseT
An IEEE standard (802.3) for operating 10 Mbps Ethernet networks (LANs) with twisted
pair cabling and a wiring hub.
Access Point
An internetworking device that seamlessly connects wired and wireless networks.
Access Points combined with a distributed system support the creation of multiple radio
cells that enable roaming throughout a facility.
Ad Hoc
A network composed solely of stations within mutual communication range of each
other (no Access Point connected).
BSS
Basic Service Set. A set of stations controlled by a single coordination function.
Channel
A medium used to pass protocol data units that can be used simultaneously in the same
volume of space by other channels of the same physical layer, with an acceptably low
frame error ratio due to mutual interference.
Encapsulated
An Ethernet address mode that treats the entire Ethernet packet as a whole and places
it inside an IEEE 802.11 frame along with a new header.
ESS
Extended Service Set. A set of one or more interconnected Basic Service Sets (BSSs) and
integrated Local Area Networks (LANs) can be configured as an Extended Service Set.
Ethernet
The most widely used medium access method, which is defined by the IEEE 802.3
standard. Ethernet is normally a shared media LAN; i.e., all the devices on the network
segment share total bandwidth. Ethernet networks operate at 10Mbps using CSMA/CD
to run over 10BaseT cables.
Gateway
A network component that acts as an entrance to another network.
IEEE 802.11
The IEEE 802.xx is a set of specifications for LANs from the Institute of Electrical and
Electronic 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 net-
works. 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. IEEE standards ensure interoperability
between systems of the same type.
Infrastructure
A wireless network centered about an Access Point. In this environment, the Access
Point not only provides communication with the wired network but also mediates wire-
less network traffic in the immediate neighborhood.