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Chapter 30
Configuring QoS
Configuring QoS
After you have created an input policy map, you attach it to an interface in the input direction. See the
"Attaching a Traffic Policy to an Interface" section on page
30-35.
Use the no form of the appropriate command to delete an existing policy map, class map, or policer.
This example shows how to create a traffic classification with a CoS value of 4, create a policy map, and
attach it to an ingress port. The average traffic rate is limited to 10000000 bps with a burst size of
10000 bytes:
Switch(config)# class-map video-class
Switch(config-cmap)# match cos 4
Switch(config-cmap)# exit
Switch(config)# policy-map video-policy
Switch(config-pmap)# class video-class
Switch(config-pmap-c)# police 10000000 10000
Switch(config-pmap-c)# exit
Switch(config-pmap)# exit
Switch(config)# interface fastethernet0/1
Switch(config-if)# service-policy input video-policy
Switch(config-if)# exit
This example shows how to create policy map with a conform action of set dscp and a default exceed
action.
Switch(config)# class-map in-class-1
Switch(config-cmap)# match dscp 14
Switch(config-cmap)# exit
Switch(config)# policy-map in-policy
Switch(config-pmap)# class in-class-1
Switch(config-pmap-c)# police 230000 8000 conform-action set-dscp-transmit 33
exceed-action drop
Switch(config-pmap-c)# exit
Switch(config-pmap)# exit
Switch(config)# interface fastethernet0/1
Switch(config-if)# service-policy input in-policy
Switch(config-if)# exit
This example shows how to use policy-map class police configuration mode to set multiple conform
actions and an exceed action. The policy map sets a committed information rate of 23000 bits per second
(bps) and a conform burst size of 10000 bytes. The policy map includes multiple conform actions (for
DSCP and for Layer 2 CoS) and an exceed action.
Switch(config)# class-map cos-set-1
Switch(config-cmap)# match cos 3
Switch(config-cmap)# exit
Switch(config)# policy-map map1
Switch(config-pmap)# class cos-set-1
Switch(config-pmap-c)# police cir 23000 bc 10000
Switch(config-pmap-c-police)# conform-action set-dscp-transmit 48
Switch(config-pmap-c-police)# conform-action set-cos-transmit 5
Switch(config-pmap-c-police)# exceed-action drop
Switch(config-pmap-c-police)# exit
Switch(config-pmap)# exit
Switch(config)# interface fastethernet0/1
Switch(config-if)# service-policy input map1
Switch(config-if)# exit
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
30-38
78-17058-01
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Troubleshooting
