Cisco Systems OL-8550-09 Network Router User Manual


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Catalyst 3750 Switch Software Configuration Guide
OL-8550-09
Chapter 35 Configuring QoS
Configuring Standard QoS
Switch(config-pmap-c)# set dscp 7
Switch(config-pmap-c)# service-policy port-plcmap-1
Switch(config-pmap-c)# exit
Switch(config-pmap)# class cm-2
Switch(config-pmap-c)# service-policy port-plcmap-1
Switch(config-pmap-c)# set dscp 10
Switch(config-pmap)# exit
Switch(config-pmap)# class cm-3
Switch(config-pmap-c)# service-policy port-plcmap-2
Switch(config-pmap-c)# set dscp 20
Switch(config-pmap)# exit
Switch(config-pmap)# class cm-4
Switch(config-pmap-c)# trust dscp
Switch(config-pmap)# exit
Switch(config)# interface vlan 10
Switch(config-if)# service-policy input vlan-plcmap
Switch(config-if)# exit
Switch(config)# exit
Switch#
This example shows how to configure default traffic class to a policy map:
Switch# configure terminal
Switch(config)# class-map cm-3
Switch(config-cmap)# match ip dscp 30
Switch(config-cmap)# match protocol ipv6
Switch(config-cmap)# exit
Switch(config)# class-map cm-4
Switch(config-cmap)# match ip dscp 40
Switch(config-cmap)# match protocol ip
Switch(config-cmap)# exit
Switch(config)# policy-map pm3
Switch(config-pmap)# class class-default
Switch(config-pmap)# set dscp 10
Switch(config-pmap-c)# exit
Switch(config-pmap)# class cm-3
Switch(config-pmap-c) set dscp 4
Switch(config-pmap-c)# exit
Switch(config-pmap)# class cm-4
Switch(config-pmap-c)# trust cos
Switch(config-pmap-c)# exit
Switch(config-pmap)# exit
This example shows how the default traffic class is automatically placed at the end of policy-map pm3
even though class-default was configured first:
Switch# show policy-map pm3
Policy Map pm3
Class cm-3
set dscp 4
Class cm-4
trust cos
Class class-default
police 8000 80000 exceed-action drop
Switch#
Classifying, Policing, and Marking Traffic by Using Aggregate Policers
By using an aggregate policer, you can create a policer that is shared by multiple traffic classes within
the same policy map. However, you cannot use the aggregate policer across different policy maps or
ports.
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