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Cisco Systems IntelligentGigabit Ethernet Switch Modules for the IBM BladeCenter, Software Configuration Guide
24R9746
Chapter23 Configuring QoS
Configuring Standard QoS
Configuring WRR Priority
Beginning in privileged EXEC mode, follow these steps to configure the WRR priority:
To disable the WRR scheduling and enable the strict priority scheduling, use the no wrr-queue
bandwidth global configuration command.
To enable one of the queues as the expedite queue and to enable the WRR scheduling for the remaining
queues, see the “Enabling the Expedite Queue and Configuring WRR Priority” section on pag e 23-35.
Enabling the Expedite Queue and Configuring WRR Priority
Beginning in privileged EXEC mode, follow these steps to enable the expedite queue (queue 4) and
assign WRR priority to the remaining queues:
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 wrr-queue bandwidth
weight1...weight4
Assign WRR weights to the four CoS queues.
These are the ranges for the WRR values:
•For weight1, weight2, and weight3, the range is 1 to 255.
•For weight4, the range is 0 to 255. When weight4 is set to 0, queue
4 is configured as the expedite queue.
Note
Step3 end Return to privileged EXEC mode.
Step4 show wrr-queue bandwidth Display the WRR bandwidth allocation for the CoS priority queues.
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 wrr-queue bandwidth weight1 weight2
weight3 0
Configure queue 4 as the expedite queue and assign WRR weights to the
remaining egress queues.
The range of WRR weights for weight1, weight2, and weight3 is 1 to 255.
Step3 end Return to privileged EXEC mode.
Step4 show wrr-queue bandwidth Display the WRR bandwidth allocation for the CoS priority queues.