Brocade Communications Systems RFS6000 System Reference Manual page 241

3. Refer to the WMM table for the following information:
4. To modify the properties of WMM Adoption Settings, select a radio and click the Edit button.
Editing Access Point 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
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.
Brocade Mobility RFS6000 and RFS7000 System Reference Guide
53-1001858-01
AP Type
Displays whether the radio is an 802.11bg and 802.11bgn or 802.11a and
802.11an radio. This value is read-only and cannot be modified.
Access Category Displays the Access Category currently in use. There are four categories: Video,
Voice, Best Effort and Background. Click the Edit button to change the current
Access Category. Ensure the Access Category reflects the radios intended network
traffic.
AIFSN Displays the current Arbitrary Inter-frame Space Number (AIFSN). 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.
Transmit Ops Displays the maximum duration a device can transmit after obtaining a transmit
opportunity. For higher-priority traffic categories, this value should be set higher.
ECW Min The ECW Min is combined with the ECW 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.
ECW Max The ECW Max is combined with the ECW 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.
For more information, see
"Configuring WMM"
The AP Type identifies whether the radio is an 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.
Viewing Access Point adoption defaults
"Editing Access Point adoption WMM settings"
on page 198 to configure downstream traffic parameters. WLAN
4
on page 227.
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