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Chapter 52
Configuring QoS
Table 52-3
QoS Default Configuration (continued)
Feature
Internal DSCP to egress CoS map
(egress CoS set from internal DSCP
values)
Marked-down DSCP from DSCP map
Policers
Named ACLs
Default ACLs
1
COPS
support
RSVP support
QoS statistics data export
With QoS enabled
Runtime—Port based or VLAN based
Config—Port based or VLAN based
Port trust state
2q2t transmit-queue size percentages
1p1q0t receive-queue size percentages
1p2q2t transmit-queue size percentages
1p2q1t transmit-queue size percentages
1p3q8t transmit-queue size percentages
OL-8978-04
Default Value
DSCP 0–7 = CoS 0
DSCP 8–15 = CoS 1
DSCP 16–23 = CoS 2
DSCP 24–31 = CoS 3
DSCP 32–39 = CoS 4
DSCP 40–47 = CoS 5
DSCP 48–55 = CoS 6
DSCP 56–63 = CoS 7
Marked-down DSCP value equals original DSCP value (no markdown)
None
None
Supports per-port classification and marking, sets DSCP to 0 in traffic from the
untrusted ports, no policing
Disabled
Disabled
Disabled
Port based
Port based
Untrusted
Low priority: 80%
•
High priority: 20%
•
Standard: 80%
•
Strict priority: 20%
•
Low priority: 70%
•
•
High priority: 15%
•
Strict priority: 15%
•
Low priority: 70%
High priority: 15%
•
Strict priority: 15%
•
Low priority: 65%
•
Medium priority: 15%
•
High priority: 15%
•
Strict priority: 5%
•
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
QoS Default Configuration
52-31
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