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Cisco Systems 3.2 Manuale Utente

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6-9
Cisco Wireless LAN Controller Configuration Guide
OL-8335-02
Chapter 6      Configuring WLANs
Configuring Wireless LANs
Configuring QoS Enhanced BSS (QBSS)
You can enable QBSS in these two modes:
•
Wireless Multimedia (WMM) mode, which supports devices that meet the 802.11E QBSS standard
•
7920 support mode, which supports Cisco 7920 IP telephones on your 802.11b/g network
QBSS is disabled by default.
Enabling WMM Mode
Enter this command to enable WMM mode:
config wlan wmm {disabled | allowed | required} wlan-id
•
The allowed option allows client devices to use WMM on the wireless LAN. 
•
The required option requires client devices to use WMM; devices that do not support WMM cannot 
join the wireless LAN.
Note
Do not enable WMM mode if Cisco 7920 phones are used on your network.
Table 6-1
Access Point QoS Translation Values
AVVID 802.1p UP-Based 
Traffic Type
AVVID IP DSCP
AVVID 802.1p UP
IEEE 802.11e UP
Network control
–
7
–
Inter-network control 
(LWAPP control, 
802.11 management)
48
6
7
Voice
46 (EF)
5
6
Video
34 (AF41)
4
5
Voice control
26 (AF31)
3
4
Background (Gold)
18 (AF21)
2
2
Background (Gold)
20 (AF22)
2
2
Background (Gold)
22 (AF23)
2
2
Background (Silver)
10 (AF11)
1
1
Background (Silver)
12 (AF12)
1
1
Background (Silver)
14 (AF13)
1
1
Best Effort
0 (BE)
0
0, 3
Background
2
0
1
Background
4
0
1
Background
6
0
1