Dell PowerSwitch S5212F-ON EMC SmartFabric OS10 User Guide Release 10.5.0 - Page 1158

2. Create a QoS type policy-map to define a policer, and optionally assign a traffic class ID for the CoS flow to redirect the policed traffic to a nondefault queue. OS10(config)# policy-map example-flow-policer OS10(config-pmap-qos)# class example-cmap-cos3 OS10(config-pmap-c-qos)# set qos-group 3 OS10(config-pmap-c-qos)#police cir 4000 pir 6000 3. Apply the QoS type policy-map to an interface. OS10(config)# interface ethernet 1/1/15 OS10(conf-if-eth1/1/15)# service-policy input type qos example-flow-policer Mark Traffic You can select a flow and mark it with a traffic class ID. Traffic class IDs identify the traffic flow when the traffic reaches egress for queue scheduling. Mark traffic 1. Create a QoS type class-map to match the traffic flow. OS10(config)# class-map cmap-cos3 OS10(config-cmap-qos)# match cos 3 2. Create a QoS type policy-map to mark it with a traffic class ID and assign it to the CoS flow. OS10(config)# policy-map cos3-TC3 OS10(config-pmap-qos)# class cmap-cos3 OS10(config-pmap-c-qos)# set qos-group 3 Color traffic You can select a traffic flow and mark it with a color. Color the traffic flow based on: • Metering. See Policing traffic. • Default trust. See Trust-based classification. • DSCP, ECN capable traffic (ECT), or non-ECT capable traffic. Use the set color command to color traffic based on DSCP, ECN capable, or non-ECN capable traffic. Traffic policing and traffic coloring using DSCP values are mutually exclusive. You cannot configure both at the same time. Policing and marking using DSCP values take precedence over trust-based classification. Trust-based classification has the lowest priority. Color traffic based on DSCP, ECT, or non-ECT 1. Create a QoS type class-map to match the traffic flow. OS10(config)# class-map type qos example-cmap-dscp-3-ect OS10(config-cmap-qos)# match ip dscp 3 2. Create a QoS type policy-map to color the traffic flow. OS10(config)# policy-map type qos example-pmap-ect-color OS10(config-pmap-qos)# class example-cmap-dscp-3-ect OS10(config-pmap-c-qos)# set qos-group 3 OS10(config-pmap-c-qos)# set color yellow Modify packet fields You can modify the value of CoS or DSCP fields. 1. Create a QoS type class-map to match a traffic flow. OS10(config)# class-map cmap-dscp-3 OS10(config-cmap-qos)# match ip dscp 3 1158 Quality of service