Reference Guide

1 Create a QoS type class-map to match the trac ow
OS10(config)# class-map cmap-cos3
OS10(config-cmap-qos)# match cos 3
2 Create a QoS type policy-map to dene a policer and assign a trac class ID for the CoS ow
OS10(config)# policy-map flow-policer
OS10(config-pmap-qos)# class cmap-cos3
OS10(config-pmap-c-qos)# set qos-group 3
OS10(config-pmap-c-qos)#police cir 4000 pir 6000
Mark Trac
You can select a ow and mark with a trac class ID. The trac ow is identied by the trac class ID when the trac reaches egress for
queue scheduling.
Mark trac
1 Create a QoS type class-map to match the trac ow
OS10(config)# class-map cmap-cos3
OS10(config-cmap-qos)# match cos 3
2 Create a QoS type policy-map to mark with a trac class ID and assign it for the CoS ow.
OS10(config)# policy-map cos3-TC3
OS10(config-pmap-qos)# class cmap-cos3
OS10(config-pmap-c-qos)# set qos-group 3
Color trac
You can select a trac ow and mark it with a color.
You can color the trac ow based on:
• Metering. See Policing trac.
• Default trust. See Trust based classication.
• DSCP , ECN capable trac (ECT), or non-ECT.
Color trac based on DSCP, ECT, or non-ECT
1 Create a QoS type class-map to match the trac ow.
OS10(config)# class-map cmap-dscp-3-ect
OS10(config-cmap-qos)# match ip dscp 3 ecn 1
2 Create a QoS type policy-map to color the trac ow.
OS10(config)# policy-map ect-color
OS10(config-pmap-qos)# class cmap-dscp-3-ect
OS10(config-pmap-c-qos)# set qos-group 3
OS10(config-pmap-c-qos)# set color yellow
Modify packet elds
You can modify the value of CoS or DSCP elds.
1 Create a QoS type class-map to match a trac ow
OS10(config)# class-map cmap-dscp-3
OS10(config-cmap-qos)# match ip dscp 3
2 Modify the policy-map to update the DSCP eld.
OS10(config)# policy-map modify-dscp
OS10(config-pmap-qos)# class cmap-dscp-3
OS10(config-pmap-c-qos)# set qos-group 3
OS10(config-pmap-c-qos)# set dscp 10
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Quality of service