Cisco 6500 Series Software Configuration Manual page 420

PFC QoS Default Configuration
Table 31-2 PFC QoS Default Configuration (continued)
Feature
1p3q1t transmit-queue CoS value and
drop-threshold mapping
1p2q1t transmit-queue port CoS value and
drop-threshold mapping
With PFC QoS disabled
Ingress LAN port trust state
Receive-queue drop-threshold percentages All thresholds set to 100%
Transmit-queue drop-threshold
percentages
Transmit-queue bandwidth allocation ratio 255:1
Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E
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Default Value
Standard transmit queue 1 (low priority):
Threshold 1:
•
CoS 0 and 1
–
Tail drop (disabled): 100%
–
WRED-drop (enabled): 70% low, 100% high
–
Standard transmit queue 2 (medium priority) tail-drop threshold:
Threshold 1:
•
– CoS 2, 3, and 4
– Tail drop (disabled): 100%
– WRED-drop (enabled): 70% low, 100% high
Standard transmit queue 3 (high priority) tail-drop threshold:
Threshold 1:
•
CoS 6 and 7
–
Tail drop (disabled): 100%
–
WRED-drop (enabled): 70% low, 100% high
–
Strict-priority receive queue:
CoS 5
•
Tail-drop: 100% (nonconfigurable)
•
Standard transmit queue 1 (low priority):
• Threshold 1:
– CoS 0, 1, 2, and 3
– WRED-drop: 70% low, 100% high
Standard transmit queue 2 (high priority) WRED-drop threshold:
Threshold 1:
•
CoS CoS 4, 6, and 7
–
WRED-drop: 70% low, 100% high
–
Strict-priority receive queue:
CoS 5
•
Tail-drop: 100% (nonconfigurable)
•
trust-dscp
All thresholds set to 100%
Chapter 31 Configuring PFC QoS
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