52-31
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
