164
| Adaptive Radio Management
Dell PowerConnect W-Series Instant Access Point 6.1.3.4-3.1.0.0
| User Guide
Beacon interval
Enter the Beacon period (60ms to 500ms) for the IAP in msec. This indicates how often the
802.11 beacon management frames are transmitted by the access point.
The default value is 100 msec.
Interference immunity level
Select to increase the immunity level to improve performance in high-interference
environments.
The default immunity level is 2.
NOTE:
Increasing the immunity level makes the AP slightly “deaf” to its surroundings, causing
the AP to lose a small amount of range.
Level 0— no ANI adaptation.
Level 1— Noise immunity only. This level enables power-based packet detection by
controlling the
amount of power increase that makes a radio aware that it has received a packet.
Level 2— Noise and spur immunity. This level also controls the detection of OFDM
packets, and is the
default setting for the Noise Immunity feature.
Level 3— Level 2 settings and weak OFDM immunity. This level minimizes false detects on
the radio due to interference, but may also reduce radio sensitivity. This level is
recommended for environments with a high-level of interference related to 2.4Ghz
appliances such as cordless phones.
Level 4— Level 3 settings, and FIR immunity. At this level, the AP adjusts its sensitivity to
in-band power, which can improve performance in environments with high and constant
levels of noise interference.
Level 5— The AP completely disables PHY error reporting, improving performance by
eliminating the time the IAP would spend on PHY processing.
Channel switch announcement
count
Indicates the number of channel switching announcements that must be sent prior to
switching to a new channel. This allows associated clients to recover gracefully from a
channel change.
Channel reuse type
When set to
Dynamic
, the access point, when busy, will automatically adjust its Clear Channel
Assessment (CCA) threshold to accommodate transmissions to the most distant associated
client.
When set to
Static
, the access point will set its CCA threshold to the value specified in
Channel reuse threshold
.
Channel reuse threshold
When set to
Static,
this value specifies the tolerable interference that must be maintained.
Background spectrum
monitoring
When background spectrum monitoring is enabled, the APs in access mode continue to
provide normal access service to clients, while performing additional function of monitoring
RF interference (from both neigh bo uri ng APs and non-WiFi sources such as, microwaves
and cordless phones) on the channel they are currently serving clients on.
Standalone spectrum band
For background spectrum monitoring on the 5 GHz band, it is necessary to specify which
portion of the channel to monitor:
upper, middle, or lower.
Table 25
Radio Profile Configuration Parameters (Continued)
Parameter
Description
NOTE:
Reboot the IAP after configuring the radio profile settings in order for the changes to take effect.
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