LevelOne WAP-0003, User Manual

Page: 101 / 105

-101-
Encryption ? A security method that uses a specific algorithm to alter the data transmitted,
thus prevent others from knowing the information transmit ted.
ESS
? ESS stands for “Extended Service Set”. More than one BSS is configured to become
Extended Service Set. LAN mobile users can roam between different BSSs in an ESS.
ESSID ? The unique identifier that identifies the ESS. In infrastructure association , the
stations use the same ESSID as AP’s to get connected.
Ethernet ? A popular local area data communications network, originally developed by Xerox
Corp., that accepts transmission from computers and terminals. Ethernet operates on a 10/100
Mbps base transmission rate, using a shielded coaxial cable or over shielded twisted pair
telephone wire.
Fragmentation ? When transmitting a packet over a network medium, sometimes the packet
is broken into several segments, if the size of packet exceeds that allowed by the network
medium.
Fragmentation Threshold – The Fragmentation Threshold defines the number of bytes used
for the fragmentation boundary for directed messages. The purpose of "Fragmentation
Threshold" is to increase the transfer reliability thru cutting a MAC Service Data Unit (MSDU) into
several MAC Protocol Data Units (MPDU) in smaller size. The RF transmission can not allow to
transmit too big frame size due to the heavy interference caused by the big size of transmission
frame. But if the frame size is too small, it will create the overhead during the transmission.
Gateway
? a device that interconnects networks with different, incompatible communication
protocols.
IEEE ? The I nstitute of E lectrical and E lectronics E ngineers, which is the largest technical
professional society that promotes the development and application of electro technology and
allied sciences for the benefit of humanity, the advancement of the profession. The IEEE fosters
the development of standards that often become national and international standards.
Infrastructure ? An infrastructure network is a wireless network or other small network in
which the wireless network devices are made a part of the network through the Access Point
which connects them to the rest of the network.
ISM Band ? The FCC and their counterparts outside of the U.S. have set aside bandwidth for
unlicensed use in the ISM (Industrial, Scientific and Medical) band. Spectrum in the vicinity of
2.4GHz, in particular, is being made available worldwide.