Cisco 7604 - Page 698

41-96
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Chapter 41 Configuring PFC QoS
Configuring PFC QoS
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)
To configure the drop thresholds, perform this task:
Configuring a WRED-Drop and Tail-Drop Transmit Queue
These port types have both WRED-drop and tail-drop thresholds in their transmit queues:
• 1p3q1t (transmit)
• 1p3q8t (transmit)
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.
1. type = fastethernet, gigabitethernet, or tengigabitethernet
Command Purpose
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)# rcv-queue threshold queue_id
thr1% thr2% thr3% thr4% thr5% thr6% thr7% thr8%
Configures the tail-drop thresholds.
Router(config-if)# no rcv-queue threshold
[
queue_id ]
Reverts to the default tail-drop thresholds.
Step 3
Router(config-if)# rcv-queue random-detect
min-threshold
queue_id thr1% thr2% thr3% thr4%
thr5% thr6% thr7% thr8%
Configures the low WRED-drop thresholds.
Router(config-if)# no rcv-queue random-detect
min-threshold [
queue_id ]
Reverts to the default low WRED-drop thresholds.
Step 4
Router(config-if)# rcv-queue random-detect
max-threshold
queue_id thr1% thr2% thr3% thr4%
thr5% thr6% thr7% thr8%
Configures the high WRED-drop thresholds.
Router(config-if)# no rcv-queue random-detect
max-threshold [
queue_id ]
Reverts to the default high WRED-drop thresholds.
Step 5
Router(config-if)# rcv-queue random-detect
queue_id
Enables WRED-drop thresholds.
Router(config-if)# no rcv-queue random-detect
[
queue_id ]
Enables tail-drop thresholds.
Step 6
Router(config-if)# end
Exits configuration mode.
Step 7
Router# show queueing interface type
1
slot/port
Verifies the configuration.