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DWS-1008 User’s Manual
D-Link Systems, Inc.
Appendix D - Glossary
ETSI
European Telecommunications Standards Institute. A nonprofit organization that establishes
telecommunications and radio standards for Europe.
European Telecommunications Standards Institute
See
ETSI
.
extended service set
See
ESS
.
Extensible Authentication Protocol
See
EAP
.
Extensible Markup Language
See
XML
.
failover
In a redundant system, an operation by which a standby (or secondary) system component
automatically takes over the functions of an active (or primary) system component when the
active component fails or is temporarily shut down or removed for servicing. During and after
failover, the system continues its normal operations with little or no interruption in service.
FCC
Federal Communications Commission. The United States’ governing body for
telecommunications, radio, television, cable, and satellite communications.
FDB
See
forwarding database (FDB)
.
Federal Communications Commission
See
FCC
.
FHSS
Frequency-hopping spread-spectrum. One of two types of spread-spectrum radio technology
used in wireless LAN (WLAN) transmissions. The FHSS technique modulates the data signal
with a narrowband carrier signal that “hops” in a predictable sequence from frequency to
frequency as a function of time over a wide band of frequencies. Interference is reduced,
because a narrowband interferer affects the spread-spectrum signal only if both are transmitting
at the same frequency at the same time. The transmission frequencies are determined by
a spreading (
hopping
) code. The receiver must be set to the same hopping code and must
listen to the incoming signal at the proper time and frequency to receive the signal. Compare
DSSS
.