Cisco 7604

41-99
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Chapter 41 Configuring PFC QoS
Configuring PFC QoS
<...Output Truncated...>
Receive queues [type = 1q4t]:
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queue tail-drop-thresholds
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1 60[1] 100[2] 40[3] 100[4]
<...Output Truncated...>
Router#
Mapping QoS Labels to Queues and Drop Thresholds
These sections describe how to map QoS labels to queues and drop thresholds:
Note Enter the show queueing interface {ethernet | fastethernet | gigabitethernet | tengigabitethernet}
slot/port | include type command to see the queue structure of a port.
These sections describe how to map QoS labels to queues and drop thresholds:
• Queue and Drop Threshold Mapping Guidelines and Restrictions, page 41-99
• Configuring DSCP-Based Queue Mapping, page 41-100
• Configuring CoS-Based Queue Mapping, page 41-105
Queue and Drop Threshold Mapping Guidelines and Restrictions
When mapping QoS labels to queues and thresholds, note the following information:
• When SRR is enabled, you cannot map any CoS values or DSCP values to strict-priority queues.
• Queue number 1 is the lowest-priority standard queue.
• Higher-numbered queues are higher priority standard queues.
• You can map up to 8 CoS values to a threshold.
• You can map up to 64 DSCP values to a threshold.
• Threshold 0 is a nonconfigurable 100-percent tail-drop threshold on these port types:
– 1p1q0t (receive)
– 1p1q8t (receive)
– 1p3q1t (transmit)
– 1p2q1t (transmit)
• The standard queue thresholds can be configured as either tail-drop or WRED-drop thresholds on
these port types:
– 1p1q8t (receive)
– 1p3q1t (transmit)
– 1p3q8t (transmit)
– 1p7q1t (transmit)