Cisco ASR 9000 Series

Configuring Hierarchical Modular QoS on Cisco ASR 9000 Series Routers
How to Configure Hierarchical QoS
QC-132
Cisco ASR 9000 Series Aggregation Services Router Modular Quality of Service Configuration Guide
OL-23108-02
Configuring the Three-Parameter Scheduler
When configuring the Three-Parameter Scheduler, consider the following guidelines:
• To use the three-parameter scheduler, a queueing class must be enabled. To enable a queueing class,
you must configure at least one of the three parameters. When at least one parameter is configured,
a queue is assigned to the class.
• If you configure only one parameter, the scheduler uses default values for the other two parameters.
• You can configure all 3 parameters in the same class.
• Minimum bandwidth must be less than maximum bandwidth.
For information about three-parameter scheduler support on specific line cards or SIPs, see “Support for
Three-Parameter Scheduler in Hierarchical Policies” section on page 129.
ASR 9000 Ethernet Line Cards
SUMMARY STEPS
1. configure
2. policy-map policy-name
3. class class-name
4. shape average {percent percentage | rate [units]}
5. exit
6. policy-map policy-name
7. class class-default
8. bandwidth {rate [units] | percent percentage-value}
or
bandwidth remaining [percent percentage-value | ratio ratio-value]
or
shape average {percent percentage | rate [units]}
9. service-policy policy-map-name
10. end
or
commit