Nortel 120 Using Manual page 88

88 System configuration management
WMM—Sets the WMM operational mode on the access point. When
enabled, the parameters for each AC queue are employed on the access
point and QoS capabilities are advertised to WMM-enabled clients. (Default:
Support)
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WMM acknowledge policy—By default, all wireless data transmissions
require the sender to wait for an acknowledgement from the receiver.
WMM allows the acknowledgement wait time to be turned off for each
Access Category (AC). Although this increases data throughput, it can also
result in a high number of errors when traffic levels are heavy. (Default:
Acknowledge)
WMM BSS parameters—These parameters apply to the wireless clients.
WMM AP parameters—These parameters apply to the access point.
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Copyright © 2006, Nortel Networks
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Disable: WMM is disabled.
Support: WMM is used for any associated device that supports this
feature. Devices that do not support this feature can still associate with
the access point.
Required: WMM must be supported on any device trying to associated
with the access point. Devices that do not support this feature are not
allowed to associate with the access point.
logCWMin (Minimum Contention Window)—The initial upper limit of
the random backoff wait time before wireless medium access can be
attempted. The initial wait time is a random value between zero and the
CWMin value. Specify the CWMin value in the range 0-15. Note that the
CWMin value must be equal or less than the CWMax value.
logCWMax (Maximum Contention Window)—The maximum upper limit
of the random backoff wait time before wireless medium access can
be attempted. The contention window is doubled after each detected
collision up to the CWMax value. Specify the CWMax value in the
range 0-15. Note that the CWMax value must be greater or equal to
the CWMin value.
AIFSN (Arbitration Inter-Frame Space Number)—The minimum amount
of wait time before the next data transmission attempt. Specify the
AIFSN value in the range 0-15.
TXOP limit (Transmit Opportunity Limit)—The maximum time an AC
transmit queue has access to the wireless medium. When an AC queue
is granted a transmit opportunity, it can transmit data for a time up to the
TxOpLimit. This data bursting greatly improves the efficiency for high
data-rate traffic. The TXOP limit is specified in units of 32 microseconds.
Specify a TXOP value in the range 0-65 535 units.
Using the Nortel Business Access Point 120
NN47921-301 01.01 Standard
1.0 August 2006
BAP120
Nortel Networks Confidential