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Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Chapter 42 Configuring PFC QoS
PFC QoS Default Configuration
Bandwidth Allocation Ratios
Default Drop-Threshold Percentages and CoS Value Mappings
The following tables list the default drop-thresholds values and CoS mappings for different queue types:
• 1q2t Receive Queues, page 42-32
• 1q4t Receive Queues, page 42-32
• 1p1q4t Receive Queues, page 42-33
• 1p1q0t Receive Queues, page 42-33
• 1p1q8t Receive Queues, page 42-34
• 1q8t Receive Queues, page 42-35
• 2q8t Receive Queues, page 42-36
• 8q4t Receive Queues, page 42-37
• 8q8t Receive Queues, page 42-41
• 2q2t Transmit Queues, page 42-41
1p7q4t Standard queue 1 (lowest priority): 50%
Standard queue 2: 20%
Standard queue 3: 15%
Standard queues 4 through 7: 0%
Strict priority 15%
1p7q8t Standard queue 1 (lowest priority): 50%
Standard queue 2: 20%
Standard queue 3: 15%
Standard queues 4 through 7: 0%
Strict priority 15%
Feature Default Value
2q8t 90:10
8q4t 90:0:0:0:0:0:0:10
8q8t 90:0:0:0:0:0:0:10
1p3q8t 22:33:45
1p7q4t 100:150:200:0:0:0:0:0
1p7q8t 22:33:45:0:0:0:0
1p2q1t 100:255
2q2t, 1p2q2t, and 1p2q1t 5:255
1p3q1t 100:150:255
Feature Default Value