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Catalyst 3750 Metro Switch Software Configuration Guide
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Chapter 26 Configuring QoS
Configuring Hierarchical QoS
To delete an existing policy map, use the no policy-map policy-map-name global configuration
command. To delete an existing class, use the no class class-name policy-map configuration command.
To remove the two-rate policer, use the no police cir cir [bc conform-burst] pir pir [be peak-burst]
[conform-action action [exceed-action action [violate-action action]]] policy-map class configuration
command. To remove the policy map and interface association, use the no service-policy output
policy-map-name interface configuration command.
This example shows how to configure a class-level, two-rate traffic policer to limit outbound traffic to
an average committed rate of 500 kbps and a peak rate of 1 Mbps. Traffic marked as conforming to the
average committed rate (500 kbps) is sent as is. Traffic marked as exceeding 500 kbps, but not exceeding
1 Mbps, is marked with IP precedence 2 and then sent. All traffic marked as exceeding 1 Mbps is
dropped. The burst parameters are set to 10000 bytes.
Switch(config)# class-map c1
Switch(config-cmap)# match ip precedence 4
Switch(config-cmap)# exit
Switch(config)# policy-map policy1
Switch(config-pmap)# class c1
Switch(config-pmap-c)# police cir 500000 bc 10000 pir 1000000 be 10000 conform-action
transmit exceed-action set-prec-transmit 2 violate-action drop
Switch(config-pmap-c)# exit
Switch(config-pmap)# exit
Switch(config)# interface gigabitethernet1/1/1
Switch(config-if)# service-policy output policy1
This example shows how to configure a class-level, two-rate traffic policer that uses a CIR and a PIR
based on a percentage of bandwidth. A CIR of 20 percent and a PIR of 40 percent are specified. The
optional bc and be values (300 ms and 400 ms, respectively) are specified.
Switch(config)# class-map c1
Switch(config-cmap)# match ip precedence 4
Switch(config-cmap)# exit
Switch(config)# policy-map policy1
Switch(config-pmap)# class class1
Switch(config-pmap-c)# police cir percent 20 bc 300 ms pir percent 40 be 400 ms
Switch(config-pmap-c)# exit
Switch(config-pmap)# exit
Switch(config)# interface gigabitethernet1/1/1
Switch(config-if)# service-policy output policy1
Step 6
exit Return to global configuration mode.
Step 7
interface interface-id Specify an ES port to attach to the policy map, and enter interface
configuration mode.
Step 8
service-policy output policy-map-name Specify the egress policy-map name, and apply it to the ES port.
Only one policy map per port is supported.
Step 9
end Return to privileged EXEC mode.
Step 10
show policy-map policy-map-name
or
show policy-map interface interface-id
Verify your entries.
Step 11
copy running-config startup-config (Optional) Save your entries in the configuration file.
Command Purpose
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