Table of Contents
Advertisement
Hidden scan
Indicates the number of
period
seconds that will pass
between performing two
hidden scans when
connected to a WLAN access
point
Listen DTIM
When this setting is on, the
wireless station wakes up
from the power saving mode
to listen to DTIM (Delivery
Traffic Indication Message)
frames
Listen interval Indicates to the WLAN
access point how often a
wireless station wakes to
listen to beacon management
frames
Long retry limit Indicates the maximum
number of transmission
attempts of a frame, the
length of which is greater
than RTS (Request To Send)
threshold. Note that
performance management
overrides this setting
10 - 100
Scanning Mobility of a station is improved
(30 seconds)
On, Off
Power
save
(On)
1 - 100
Power
save
(10 beacons)
1 - 20
Mac
(7)
by reducing the hidden scan
period at the expense of
bandwidth. Note that scanning
involves sending of probe
requests to access points in the
environment as well as receiving
responses from the access
points. Note: if there is no traffic,
the scanning is carried out three
times more frequently than
defined in the parameter. For
example, if the period is 30
seconds, scans are carried out
every 10 seconds if there is no
traffic.
While infrastructure network is
operating under power save,
multicast traffic is buffered in the
access point and transmitted only
after DTIM beacon. By default,
the station wakes up to listen to
DTIMs, independent of Listen
Interval, and is ready to collect
the multicast traffic. The DTIM
period is defined by the network
administrator. Listen DTIM
should be turned OFF if
aggressive power saving is
desired. Missing the multicast
traffic may cause instability in
upper layer protocols such as IP
and ARP. This , however, is
typically not a problem.
Increasing the value results in
more aggressive power saving
and longer response times. See
"Listen DTIM".
Higher value can be useful when
the signal strength is low and the
traffic is mostly TCP unicast,
such as reading e-mail, browsing
the Web, uploading, or
downloading. Lower value can be
useful when the traffic is mainly
UDP (audio/video streaming),
voice over IP or multicast traffic.
25/113
Advertisement
Table of Contents
