Motorola RFS Series Reference Manual page 219

CW Min
CW Max
4. To modify the properties of WMM Adoption Settings, select a radio and click the Edit button. For more
information, see
4.8.4.1 Editing Access Port Adoption WMM Settings
Use the Edit screen to modify a WMM profile's properties (AIFSN, Transmit Ops, Cw Min and CW Max).
Modifying these properties may be necessary as Access Categories are changed and transmit intervals need
adjustment to compensate for larger data packets and contention windows.Use
4-102 to configure downstream traffic parameters. WLAN WMM configuration affects your upstream traffic
parameters.
To edit the existing WMM settings:
1. Select Network Setup
2. Click the WMM
3. Select a radio from the table and click the
The AP Type
only and cannot be modified. There are four editable access categories: Video, Voice, Best Effort and
Background.
4. Enter a number between 0 and 15 for the
The AIFSN value is the current Arbitrary Inter-frame Space Number. Higher-priority traffic categories
should have lower AIFSNs than lower-priority traffic categories. This causes lower-priority traffic to wait
longer before trying to access the medium.
5. Enter a number between 0 and 65535 for the
The Transmit Ops value is the maximum duration a device can transmit after obtaining a transmit
opportunity. For Higher-priority traffic categories, this value should be set higher.
The CW Min is combined with the CW Max to define the Contention Window.
From this range, a random number is selected for the back off mechanism. Lower
values are used for higher priority traffic.
The CW Max is combined with the CW Min to make the Contention Window. From
this range, a random number is selected for the back off mechanism. Lower values
are used for higher priority traffic.
Editing Access Port Adoption WMM Settings on page
> Radio Adoption Defaults
tab.
identifies whether the radio is an 802.11a radio or an 802.11 bg radio. This value is read-
from the main menu tree.
Edit button.
AIFSN value for the selected radio.
Transmit Ops value.
Network Setup
4-131.
Configuring WMM on page
4-131