Reference Guide

1. Create a class-map of type queuing to match queue 5
OS10(config)# class-map type queuing q5
2. Define the queue to match
OS10(config-cmap-queuing)# match queue 5
Policing traffic
Use policing to limit the rate of ingress traffic flow. The flow can be all the ingress traffic on a port or a particular flow assigned
with a traffic class ID.
In addition, you can use policing to color the traffic.
● When traffic arrives at a rate less than the committed rate, the color is green.
● When traffic propagates at an average rate greater than or equal to the committed rate and less than peak-rate, the color is
yellow.
● When the traffic rate is above the configured peak-rate, the traffic is dropped to guarantee a bandwidth limit for an ingress
traffic flow.
Peak rate is the maximum rate for traffic arriving or leaving an interface under normal traffic conditions. Peak burst size
indicates the maximum size of unused peak bandwidth that is aggregated. This aggregated bandwidth enables brief durations of
burst traffic that exceeds the peak rate.
Configure Interface rate policing
1. Create a QoS type empty class-map to match all the traffic
OS10(config)# class-map cmap-all-traffic
2. Create a QoS type policy-map to define a policer
OS10(config)# policy-map interface-policer
OS10(config-pmap-qos)# class cmap-all-traffic
OS10(config-pmap-c-qos)#police cir 4000 pir 6000
Configure flow rate policing
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 define a policer and assign a traffic class ID for the CoS flow
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 Traffic
You can select a flow and mark with a traffic class ID. The traffic flow is identified by the traffic class ID 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
Quality of service
637