SMC Networks SMC2635W - Manual (Page 40)

T
ERMINOLOGY
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Fragmentation Threshold – In the 802.11 Standard, the MAC Layer may
fragment and reassemble directed MSDUs or MMPDUs. The
fragmentation and defragmentation mechanisms allow for fragment
re-transmission.
Infrastructure – An integrated wireless and wired LAN is called an
Infrastructure network.
Preamble Type – Some Access Points and Client card drivers have a radio
setting for “Short” RF Preamble. If all the Clients and Access points in
your wireless network have this feature, then enabling it can boost your
throughput. However, if a radio does not support this feature, then it will
not be able to communicate with any other radios that have this set to
“Short.”
Roaming – A wireless LAN mobile user moves around an ESS and
maintains a continuous connection to the Infrastructure network.
RTS Threshold – Transmitters contending for the medium may not be
aware of each other. The RTS/CTS mechanism can solve this “Hidden
Node Problem.” If the packet size is smaller than the preset RTS
Threshold size, the RTS/CTS mechanism will NOT be enabled.
WEP – “Wired Equivalent Privacy” is based on the use of 64-bit or
128-bit keys and the popular RC4 encryption algorithm. Wireless devices
without a valid WEP key are excluded from network traffic.