Netgear WC7520 - ProSafe 20-AP Wireless Controller Manual De Referência
Configuring Wireless and QoS Settings
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ProSafe 20-AP Wireless Controller WC7520
5.
Click Apply to save your settings.
Configure Load Balancing
Load balancing allows the wireless controller to distribute access point clients equally among
access points. You configure load balancing per type of access point model and per radio.
There are two criteria, the maximum number of clients and the signal strength.
access points. You configure load balancing per type of access point model and per radio.
There are two criteria, the maximum number of clients and the signal strength.
•
Maximum number of clients. If more than the maximum number of clients per access
points try to associate, they are pushed to another access point.
•
Signal strength. Signal strength determines speed. If many clients are close, and one
client is far, there is too much air time for the distant client. That client would have to wait
while sending and receiving. You can give a threshold for signal strength, which is
specified as a percentage, such as 50 percent.
while sending and receiving. You can give a threshold for signal strength, which is
specified as a percentage, such as 50 percent.
Note:
The load-balancing settings apply to all profiles, whether they are in
the basic profile group or in advanced profile groups.
The controller supports balancing of load on the access points it manages. This is based on
the number of clients connected to access points as well as signal quality of clients. When a
client discovers access points (using probe requests) or sends association frames, the
the number of clients connected to access points as well as signal quality of clients. When a
client discovers access points (using probe requests) or sends association frames, the
Table 25. QoS settings
Setting
Description
AIFS
Specify a wait time (in milliseconds) for data frames. Valid values for Arbitration
Inter-Frame Space (AIFS) are 1 through 255.
Inter-Frame Space (AIFS) are 1 through 255.
CwMin
Specify an upper limit (in milliseconds) of a range from which the initial random
backoff wait time is determined. Valid values for this field are 1, 3, 7, 15, 31, 63, 127,
255, 511, or 1024. The value for the Minimum Contention Window (CwMin) needs to
be lower than the value for the Maximum Contention Window (CwMax).
backoff wait time is determined. Valid values for this field are 1, 3, 7, 15, 31, 63, 127,
255, 511, or 1024. The value for the Minimum Contention Window (CwMin) needs to
be lower than the value for the Maximum Contention Window (CwMax).
CwMax
Specify an upper limit (in milliseconds) for the doubling of the random backoff value.
Valid values for this field are 1, 3, 7, 15, 31, 63, 127, 255, 511, or 1024. The value for
the Maximum Contention Window (CwMax) needs to be higher than the value for
Minimum Contention Window (CwMin).
Valid values for this field are 1, 3, 7, 15, 31, 63, 127, 255, 511, or 1024. The value for
the Maximum Contention Window (CwMax) needs to be higher than the value for
Minimum Contention Window (CwMin).
Max Burst
Specify (in milliseconds) the maximum burst length allowed for packet bursts on the
wireless network. A packet burst is a collection of multiple frames transmitted without
header information. Valid values for maximum burst length are 0.0 through 999.9
The maximum burst length applies only to AP EDCA parameters.
wireless network. A packet burst is a collection of multiple frames transmitted without
header information. Valid values for maximum burst length are 0.0 through 999.9
The maximum burst length applies only to AP EDCA parameters.
TXOP Limit
Specify the Transmission Opportunity (TXOP) limit. The TXOP limit applies only to
station AP EDCA parameters and specifies the maximum period during which the
client station client can initiate transmissions.
station AP EDCA parameters and specifies the maximum period during which the
client station client can initiate transmissions.