Cisco 7604 - Page 628

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Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Chapter 41 Configuring PFC QoS
Understanding How PFC QoS Works
• 1p1q0t indicates:
– One strict-priority queue
– One standard queue with no configurable threshold (effectively a tail-drop threshold at
100 percent).
• 1p1q8t indicates the following:
– One strict-priority queue
– One standard queue with these thresholds:
—Eight thresholds, each configurable as either WRED-drop or tail-drop
—One non configurable (100 percent) tail-drop threshold
Egress Queue Types
To see the queue structure of an egress LAN port, enter the show queueing interface {ethernet |
fastethernet | gigabitethernet | tengigabitethernet} slot/port | include type command.
The command displays one of the following architectures:
• 2q2t indicates two standard queues, each with two configurable tail-drop thresholds.
• 1p2q2t indicates the following:
– One strict-priority queue
– Two standard queues, each with two configurable WRED-drop thresholds
• 1p3q1t indicates the following:
– One strict-priority queue
– Three standard queues with these thresholds:
—One threshold configurable as either WRED-drop or tail-drop
—One nonconfigurable (100 percent) tail-drop threshold
• 1p2q1t indicates the following:
– One strict-priority queue
– Two standard queues with these thresholds:
—One WRED-drop threshold
—One non-configurable (100 percent) tail-drop threshold
• 1p3q8t indicates the following:
– One strict-priority queue
– Three standard queues, each with eight thresholds, each threshold configurable as either
WRED-drop or tail-drop
• 1p7q4t indicates the following:
– One strict-priority queue
– Seven standard queues, each with four thresholds, each threshold configurable as either
WRED-drop or tail-drop