Dell C9000 Series Networking Configuration Manual page 920

Table 73. Default DSCP to Queue Mapping
DSCP/CP bit range (in
hexadecimal)
111xxx
110xxx
101xxx
100xxx
011xxx
010xxx
001xxx
000xxx
• Enable the trust DSCP feature.
POLICY-MAP-IN mode
trust diffserv
Honoring dot1p Values on Ingress Packets
In an input QoS policy, you can configure the system to honor dot1p values on ingress packets using the
Trust dot1p feature.
The following table specifies the queue to which the classified traffic is sent based on the dot1p value.
Table 74. Default dot1p to Queue Mapping
Packet dot1p on Ingress Packet
0
1
2
3
4
5
6
7
The dot1p value is also honored for frames on the default VLAN. For more information, refer to
Priority-Tagged Frames on the Default
• Enable the trust dot1p feature.
POLICY-MAP-IN mode
trust dot1p
DSCP Definition Traditional IP
Precedence
Network Control
Internetwork
Control
EF (Expedited CRITIC/ECP
Forwarding)
AF4 (Assured Flash Override
Forwarding)
AF3 Flash
AF2 Immediate
AF1 Priority
BE (Best Effort) Best Effort
VLAN.
Internal Queue ID
7
6
5
4
3
2
1
0
Queue ID
1
0
2
3
4
5
6
7
Quality of Service (QoS)
DSCP/CP decimal
range
56–63
48–55
40–47
32–39
24–31
16–23
8–15
0–7
920