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Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E
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Chapter 31 Configuring PFC QoS
PFC QoS Default Configuration
1p1q4t port receive-queue CoS value and
drop-threshold mapping and threshold
percentages
Standard receive queue:
• Threshold 1:
–
CoS 0 and 1
–
Tail-drop: 50%
• Threshold 2:
–
CoS 2 and 3
–
Tail-drop: 60%
• Threshold 3:
–
CoS 4
–
Tail-drop: 80%
• Threshold 4:
–
CoS 6 and 7
–
Tail-drop: 100%
Strict-priority receive queue:
• CoS 5
• Tail-drop: 100% (nonconfigurable)
1p1q0t port receive-queue CoS value and
drop-threshold mapping and threshold
percentages
Standard receive queue 1:
• CoS 0, 1, 2, 3, 4, 6, and 7
• Tail-drop: 100% (nonconfigurable)
Strict-priority receive queue:
• CoS 5
• Tail-drop: 100% (nonconfigurable)
Table 31-2 PFC QoS Default Configuration (continued)
Feature Default Value
