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