Users Guide

Table Of Contents
Dell PowerConnect ArubaOS 5.0 | User Guide Voice and Video | 563
configure these services in accordance with your network policies. Table 123 on page 563 shows the default
WMM AC to DSCP decimal mappings and the recommended WMM AC to DSCP Hex mappings.
By customizing WMM AC mappings, both the controller and AP maintain a customized WMM AC mapping
table for each configured SSID profile. All packets received are matched against the entries in the mapping table
and prioritized accordingly. The mapping table contains information for upstream (client to AP) and downstream
(AP to client) traffic.
Mapping Considerations
If you do not define a mapping for a particular DSCP tagged packet, default mappings are applied and prioritized
accordingly (Best Effort uses 0x00).
When planning your mappings, make sure that any immediate switch or router does not have conflicting 802.1p
or DSCP configurations/mappings. If this occurs, your traffic may not be prioritized correctly.
To view the mapping settings, use the following command:
show wlan ssid-profile <profile>
Using the WebUI to map between WMM AC and DSCP
1. Navigate to the Configuration > Wireless > AP Configuration page.
2. Select either the AP Group or AP Specific tab. Click Edit for the AP group or AP name.
3. In the Profiles list, select Wireless LAN. Select Virtual AP, then select the applicable virtual AP profile. Select
the SSID profile.
4. In the Profile Details, select the Advanced tab.
5. Scroll down to the Wireless Multimedia (WMM) option. Select (check) this option.
Table 123 WMM Access Category to DSCP Mappings
DSCP Decimal Value
(default mappings)
DSCP Hex Value
(recommended mappings)
WMM Access Category
8 0x08 Background
0x10
24 0x00 Best effort
0x18
40 0x20 Video
0x28
56 0x30 Voice
0x38
Note: Default mappings exist for all SSIDs. After you customize a WMM AC mapping and apply it to the SSID, the controller
overwrites the default mapping values and uses the configured values.
Note: The WMM AC mapping commands do not take affect on APs configured in bridge mode.