Installation guide

Network Setup
4-116
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 4-116.
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.
To edit the existing WMM settings:
1. Select Network > 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 causes lower-priority traffic to
wait longer before trying to access the medium.
5. Enter a number between 0 and 65535 for the Transmit Ops value.
CW Min 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.
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.