TRENDnet TEW-310APB User Manual page 106

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.
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Gateway a device that interconnects networks with different, incompatible communication
protocols.
IEEE ? The Institute of Electrical and E lectronics E ngineers, which is the largest technical
professional society that promotes the development and application of electrotechnology 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.
MAC Address ? Media Access Control Address is a unique hex number assigned by the
manufacturer to any Ethernet networking device, such as a network adapter, that allows the network
to identify it at the hardware level.
Multicasting ? Sending data to a group of nodes instead of a single destination.
Multiple Bridge – One of the additional AP operating modes offered by 22mbps Access Point,
which allows a group of APs that consists of two or more APs to connect two or more Ethernet
networks or Ethernet enabled clients together. The way that multiple bridge setup is based on the
topology of Ad-Hoc mode.
Node ? A network junction or connection point, typically a computer or workstation.
Packet ? A unit of data routed between an origin and a destination in a network.
PLCP ? Physical layer convergence protocol
PPDU ? PLCP protocol data unit
Preamble Type ? During transmission, the PSDU shall be appended to a PLCP preamble and
header to create the PPDU. Two different preambles and headers are defined as the mandatory
supported long preamble and header which interoperates with the current 1 and 2 Mbit/s DSSS
specification as described in IEEE Std 802.11-1999, and an optional short preamble and header. At
the receiver, the PLCP preamble and header are processed to aid in demodulation and delivery of
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