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Apply an input QoS policy to an input policy map
Apply an input QoS policy to an input policy map using the command policy-aggregate from
POLICY-MAP-IN mode.
Honor DSCP values on ingress packets
FTOS provides the ability to honor DSCP values on ingress packets using Trust DSCP feature. Enable this
feature using the command
trust diffserv from POLICY-MAP-IN mode. Table 41-5 lists the standard
DSCP definitions, and indicates to which queues FTOS maps DSCP values. When Trust DSCP is
configured the matched packets and matched bytes counters are not incremented in
show qos statistics.
Table 41-5. Default DSCP to Queue Mapping
DSCP/CP
hex range
(XXX)xxx DSCP Definition
Traditional IP
Precedence
E-Series
Internal
Queue ID
C-Series
Internal
Queue ID
S-Series
Internal
Queue ID
DSCP/CP
decimal
111XXX Network Control 7 3 3
48–63
110XXX Internetwork Control 6 3 3
101XXX EF (Expedited
Forwarding)
CRITIC/ECP 5 2 2
32–47
100XXX AF4 (Assured
Forwarding)
Flash Override 4 2 2
011XXX AF3 Flash 3 1 1
16–31
010XXX AF2 Immediate 2 1 1
001XXX AF1 Priority 1 0 0
0–15
000XXX BE (Best Effort) Best Effort 0 0 0