Brocade Communications Systems RFS6000 System Reference Manual page 231

4. To modify the properties of WMM Adoption Settings, select a radio and click the Edit button.
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 Configuring WMM on page 4-190 to configure downstream traffic parameters. WLAN
WMM configuration affects your upstream traffic parameters.
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.
4. Enter a number between 0 and 15 for the AIFSN value for the selected radio.
5. Enter a number between 0 and 65535 for the Transmit Ops value.
6. Enter a value between 0 and 15 for the Contention Window minimum value.
7.
Brocade Mobility RFS4000, RFS6000, and RFS7000 System Reference Guide
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For more information, see
The AP Type identifies whether the radio is an 802.11b, 802.11bg and 802.11bgn or 802.11a
and 802.11an radio. This value is read-only and cannot be modified. There are four editable
access categories: Video, Voice, Best Effort and Background.
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.
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 Minimum is combined with the CW Maximum 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.
Enter a value between 0 and 15 for the Contention Window maximum value.
Editing Access Port Adoption WMM Settings on page
4
4-219.
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