Network Router User Manual

42-94
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Chapter 42 Configuring PFC QoS
Configuring PFC QoS
This example shows how to verify the configuration:
Router# show queueing interface gigabitethernet 1/1 | begin Receive queues
Receive queues [type = 1p1q4t]:
Queue Id Scheduling Num of thresholds
-----------------------------------------
1 Standard 4
2 Priority 1
Trust state: trust COS
queue tail-drop-thresholds
--------------------------
1 60[1] 75[2] 85[3] 100[4]
<...Output Truncated...>
Router#
Configuring a WRED-Drop Transmit Queue
These port types have only WRED-drop thresholds in their transmit queues:
1p2q2t (transmit)
1p2q1t (transmit)
Configuring a WRED-Drop and Tail-Drop Receive Queue
These port types have both WRED-drop and tail-drop thresholds in their receive queues:
8q4t (receive)
8q8t (receive)
1p1q8t (receive)
Command Purpose
Step 1
Router(config)# interface type
1
slot/port
1. type = fastethernet, gigabitethernet, or tengigabitethernet
Selects the interface to configure.
Step 2
Router(config-if)# wrr-queue random-detect
min-threshold queue_id thr1% [thr2%]
Configures the low WRED-drop thresholds.
Router(config-if)# no wrr-queue random-detect
min-threshold [queue_id]
Reverts to the default low WRED-drop thresholds.
Step 3
Router(config-if)# wrr-queue random-detect
max-threshold queue_id thr1% [thr2%]
Configures the high WRED-drop thresholds.
Router(config-if)# no wrr-queue random-detect
max-threshold [queue_id]
Reverts to the default high WRED-drop thresholds.
Step 4
Router(config-if)# end
Exits configuration mode.
Step 5
Router# show queueing interface type
1
slot/port
Verifies the configuration.