H3C S5600 Series Operation Manual page 829

Operation Manual – QoS-QoS Profile
H3C S5600 Series Ethernet Switches
DSCP value (decimal)
14
18
20
22
26
28
30
34
36
38
8
16
24
32
40
48
56
0
2) 802.1p priority
802.1p priority lies in Layer 2 packet headers and is applicable to occasions where the
Layer 3 packet header does not need analysis but QoS must be assured at Layer 2.
Figure 1-3 An Ethernet frame with an 802.1Q tag header
As shown in the figure above, the 4-byte 802.1Q tag header consists of the tag protocol
identifier (TPID, two bytes in length), whose value is 0x8100, and the tag control
information (TCI, two bytes in length).
802.1Q tag header.
DSCP value (binary)
001110
010010
010100
010110
011010
011100
011110
100010
100100
100110
001000
010000
011000
100000
101000
110000
111000
000000
Figure 1-4 describes the detailed contents of an
1-7
Chapter 1 QoS Configuration
Description
af13
af21
af22
af23
af31
af32
af33
af41
af42
af43
cs1
cs2
cs3
cs4
cs5
cs6
cs7
be (default)