H3C S5120-SI Series

1-7
The priority in the 802.1Q tag header is called 802.1p precedence, because its use is defined in IEEE
802.1p.
Table 1-3 presents the values for 802.1p precedence.
Table 1-3 Description on 802.1p precedence
802.1p precedence (decimal) 802.1p precedence (binary) Description
0 000 best-effort
1 001 background
2 010 spare
3 011 excellent-effort
4 100 controlled-load
5 101 video
6 110 voice
7 111 network-management