802.11E Priority - H3C WX5500H series User Configuration Manual

Figure 11 802.1Q tag header
Byte 1
TPID(Tag protocol identifier)
1 0 0 0 0 0 0 1 0 0 0 0 0 0 0
7 6 5 4 3 2 1 0 7
Table 10 Description on 802.1p priority
802.1p priority (decimal)
0
1
2
3
4
5
6
7

802.11e priority

To provide QoS services on WLAN, the 802.11e standard was developed. IEEE 802.11e is a
MAC-layer enhancement to IEEE 802.11. IEEE 802.11e adds a 2-byte QoS control field to the
802.11e MAC frame header. The 3-bit QoS control field represents the 802.11e priority in the range
of 0 to 7.
Figure 12 802.11e frame structure
2 2
Address
1
Frame Duration/
control
Byte 2
6 5 4 3 2 1 0
6 6 6
Address Address
2 3
ID
Byte 3
TCI(Tag control information)
C
0 Priority F
I
7 6 5 4 3 2 1 0 7
802.1p priority (binary)
000
001
010
011
100
101
110
111
2 6 2 0~2324
Address Frame
4 body
Sequence QoS
control control
40
Byte 4
VLAN ID
6 5 4 3 2 1 0
Description
best-effort
background
spare
excellent-effort
controlled-load
video
voice
network-management
4
FCS