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Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 52 Configuring QoS
QoS Default Configuration
Note • Per-port counter information and utilization statistics are not available for the ATM ports.
• QoS statistics data export is completely separate from TopN and NetFlow Data Export and does not
interact with either of these features.
For information on configuring QoS statistics data export, see the “Configuring QoS Statistics Data
Export” section on page 52-89.
QoS Default Configuration
Table 52-3 shows the QoS default configuration.
Table 52-3 QoS Default Configuration
Feature Default Value
QoS enable state Disabled
Note—With QoS enabled and all other QoS parameters at the default values,
QoS sets Layer 3 DSCP to zero and Layer 2 CoS to zero in all traffic that is
transmitted from the switch.
DSCP Rewrite Enabled
Egress DSCP Mutation Disabled
Port CoS value 0
IntraVLAN microflow policing Disabled
CoS to internal DSCP map
(internal DSCP set from CoS values)
CoS 0 = DSCP 0
CoS 1 = DSCP 8
CoS 2 = DSCP 16
CoS 3 = DSCP 24
CoS 4 = DSCP 32
CoS 5 = DSCP 40
CoS 6 = DSCP 48
CoS 7 = DSCP 56
IP precedence to internal DSCP map
(internal DSCP set from IP precedence
values)
IP precedence 0 = DSCP 0
IP precedence 1 = DSCP 8
IP precedence 2 = DSCP 16
IP precedence 3 = DSCP 24
IP precedence 4 = DSCP 32
IP precedence 5 = DSCP 40
IP precedence 6 = DSCP 48
IP precedence 7 = DSCP 56
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