Specifications

Network Setup 4-91
4. To modify the properties of WMM Adoption Settings, select a radio and click the Edit button. For more
information, see Editing Access Port Adoption WMM Settings on page 4-91.
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
to be adjusted to compensate for larger data packets and contention windows.
To edit the existing WMM settings:
1. Select Network Setup > Radio Adoption Defaults from the main menu tree.
2. Click the WMM tab.
3. Select a radio from the table and click the Edit button.
The AP Type identifies whether the radio is an 802.11a radio or an 802.11 bg radio. This value is read-
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 AIFSN value for the selected radio.
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 will causes lower-priority traffic to
wait longer before trying to access the medium.
CW Min The CW Min is combined with the CW Max 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.
CW Max 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.