Comtrend Corporation NexusLink 3241eu, User Manual

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136
Field Description
Fragmentation
Threshold A threshold, specified in bytes, that determines whether
packets will be fragmented and at what size. On an
802.11 WLAN, packets that exceed the fragmentation
threshold are fragmented, i.e., split into, smaller units
suitable for the circuit size. Packets smaller than the
specified fragmentation threshold value are not
fragmented. Enter a value between 256 and 2346. If you
experience a high packet error rate, try to slightly increase
your Fragmentation Threshold. The value should remain
at its default setting of 2346. Setting the Fragmentation
Threshold too low may result in poor performance.
RTS Threshold Request to Send, when set in bytes, specifies the packet
size beyond which the WLAN Card invokes its RTS/CTS
mechanism. Packets that exceed the specified RTS
threshold trigger the RTS/CTS mechanism. The NIC
transmits smaller packet without using RTS/CTS. The
default setting of 2347 (maximum length) disables RTS
Threshold.
DTIM Interval Delivery Traffic Indication Message (DTIM) is also known as
Beacon Rate. The entry range is a value between 1 and
65535. A DTIM is a countdown variable that informs clients
of the next window for listening to broadcast and multicast
messages. When the AP has buffered broadcast or
multicast messages for associated clients, it sends the next
DTIM with a DTIM Interval value. AP Clients hear the
beacons and awaken to receive the broadcast and
multicast messages. The default is 1.
Beacon Interval The amount of time between beacon transmissions in
milliseconds. The default is 100 ms and the acceptable
range is 1 – 65535. The beacon transmissions identify the
presence of an access point. By default, network devices
passively scan all RF channels listening for beacons coming
from access points. Before a station enters power save
mode, the station needs the beacon interval to know when
to wake up to receive the beacon (and learn whether there
are buffered frames at the access point).
Global Max Clients The maximum number of clients that can connect to the
router.
Xpress
TM
Technology Xpress Technology is compliant with draft specifications of
two planned wireless industry standards.
WMM (Wi-Fi
Multimedia) The technology maintains the priority of audio, video and
voice applications in a Wi-Fi network. It allows multimedia
service get higher priority.
WMM No
Acknowledgement Refers to the acknowledge policy used at the MAC level.
Enabling no Acknowledgement can result in more efficient
throughput but higher error rates in a noisy Radio
Frequency (RF) environment.
WMM APSD This is Automatic Power Save Delivery. It saves power.
Beamforming
Transmission (BFR) Enable beamforming signal enhance for wireless
transmission.