HP A5120 EI Series Configuration Manual page 72

Figure 23 802.1Q 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 8 Description on 802.1p priority
802.1p priority (decimal)
0
1
2
3
4
5
6
7
Byte 2
0 Priority
6 5 4 3 2 1 0 7 6
802.1p priority (binary)
000
001
010
011
100
101
110
111
67
Byte 3 Byte 4
TCI (Tag control information)
CFI
VLAN ID
5 4 3 2 1 0 7 6 5 4 3 2 1 0
Description
best-effort
background
spare
excellent-effort
controlled-load
video
voice
network-management