According to product bulletin no 3209 for the Cisco 4400 series, the Access Point supports 802.11e WMM.
My question goes to DSCP mapping, according to IEEE and your bulletin the DSCP field in the IP header should be set to 46 (10110 00) for mapping to a 802.11 QoS voice priority 6/7.
But my Wireshark trace revealed 4400N is mapping toward with 802.11 QoS is set to Priority 5 Video.
If I google DSCP mapping toward 802.11 QoS all IEEE documention I found says EF /Voice should have 46 or 101xxx in the DSCP IP field but running through Cisco and HP docs gives 46 or 48 as value, that is the correct value....
Regards Karl Henrik Nielsen
Added Wireshark packet from 4400N AP.
o. Time Source Destination Protocol
5817 25.523410 192.168.0.1 192.168.0.4 RTP
PT=ITU-T G.711 PCMA, SSRC=0x505BE4FD, Seq=25853, Time=0
Frame 5817 (168 bytes on wire, 168 bytes captured) Radiotap Header v0,
Length 14 IEEE 802.11 QoS Data, Flags: ......F.
Type/Subtype: QoS Data (0x28)
Frame Control: 0x0288 (Normal)
Destination address: ThraneTh_01:d2:39 (00:11:cf:01:d2:39)
BSS Id: Cisco-Li_d7:dc:f6 (00:23:69:d7:dc:f6)
Source address: ThraneTh_00:f4:be (00:11:cf:00:f4:be)
Fragment number: 0
Sequence number: 0
Priority: 5 (Video) (Video)
...0 .... = EOSP: Service period
Ack Policy: Normal Ack (0x00)
Payload Type: MSDU
QAP PS Buffer State: 0x0
Internet Protocol, Src: 192.168.0.1 (192.168.0.1), Dst: 192.168.0.4
Header length: 20 bytes
Differentiated Services Field: 0xb8 (DSCP 0x2e: Expedited Forwarding; ECN: 0x00)
1011 10.. = Differentiated Services Codepoint: Expedited Forwarding (0x2e)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 120
Identification: 0x03c8 (968)
Fragment offset: 0
Time to live: 64
Protocol: UDP (0x11)
Header checksum: 0xf49f [correct]
Source: 192.168.0.1 (192.168.0.1)
Destination: 192.168.0.4 (192.168.0.4) User Datagram Protocol, Src
Port: 1027 (1027), Dst Port: connected
Real-Time Transport Protocol