Users Guide

Table 55. Default DSCP to Queue Mapping
DSCP/CP hex range
(XXX)xxx
DSCP Definition Traditional IP
Precedence
Internal Queue ID DSCP/CP decimal
111XXX Network Control 3 48–63
110XXX Internetwork Control 3 48–63
101XXX EF (Expedited
Forwarding)
CRITIC/ECP 2 32–47
100XXX AF4 (Assured
Forwarding)
Flash Override 2 32–47
011XXX AF3 Flash 1 16–31
010XXX AF2 Immediate 1 16–31
001XXX AF1 Priority 0 0–15
000XXX BE (Best Effort) Best Effort 0 0–15
• Enable the trust DSCP feature.
POLICY-MAP-IN mode
trust diffserv
Honoring dot1p Values on Ingress Packets
Dell Networking OS honors dot1p values on ingress packets with the Trust dot1p feature.
The following table specifies the queue to which the classified traffic is sent based on the dot1p value.
Table 56. Default dot1p to Queue Mapping
dot1p Queue ID
0 2
1 0
2 1
3 3
4 4
5 5
6 6
7 7
Table 57. Default dot1p to Queue Mapping
dot1p Queue ID
0 0
1 0
2 0
3 1
4 2
5 3
6 3
7 3
Quality of Service (QoS) 553