Chapter 41
Configuring PFC QoS
Feature
Standard transmit queue 2
(high priority)
1p2q2t Transmit Queues
Feature
Standard transmit queue 1
(low priority)
Standard transmit queue 2
(high priority)
Strict-priority transmit queue
OL-4266-08
Threshold 1
Threshold 2
Threshold 1
Threshold 2
Threshold 1
Threshold 2
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
PFC QoS Default Configuration
Default Value
CoS
4 and 5
Tail-drop
80%
WRED-drop Not supported
CoS
6 and 7
Tail-drop
100%
WRED-drop Not supported
Default Value
CoS
0 and 1
Tail-drop
Not supported
WRED-drop 40% low, 70% high
CoS
2 and 3
Tail-drop
Not supported
WRED-drop 70% low, 100% high
CoS
4 and 6
Tail-drop
Not supported
WRED-drop 40% low, 70% high
CoS
7
Tail-drop
Not supported
WRED-drop 70% low, 100% high
CoS
5
Tail-drop
100% (nonconfigurable)
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