Reference Guide

You can override the default mapping by creating QoS map.
Congure user–dened QoS map
1 Create a QoS map
OS10(config)# qos-map traffic-class tc-q-map
2 Dene the set of trac class values mapped to a queue
OS10(config-qos-map)# queue 3 qos-group 0-3
3 Verify the map entries.
OS10# show qos maps type tc-queue
Traffic-Class to Queue Map: tc-q-map
Queue Traffic-Class
--------------------------
3 0-3
4 Apply the map on a specic interface or on system-qos (global) level.
• Interface level
OS10(conf-if-eth1/1/1)# qos-map traffic-class tc-q-map
• System-qos level
OS10(config-sys-qos)# qos-map traffic-class tc-q-map
Choose all trac classied for a queue
1 Create a class-map of type queuing to match queue 5
OS10(config)# class-map type queuing q5
2 Dene the queue to match
OS10(config-cmap-queuing)# match queue 5
Policing trac
Use policing to limit the rate of ingress trac ow. The ow can be all the ingress trac on a port or a particular ow assigned with a trac
class ID.
In addition, you can use policing to color the trac.
• When trac arrives at a rate less than the committed rate, the color is green.
• When trac propagates at an average rate greater than or equal to the committed rate and less than peak-rate, the color is yellow.
• When the trac rate is above the congured peak-rate, the trac is dropped to guarantee a bandwidth limit for an ingress trac ow.
Peak rate is the maximum rate for trac arriving or leaving an interface under normal trac conditions. Peak burst size indicates the
maximum size of unused peak bandwidth that is aggregated. This aggregated bandwidth enables brief durations of burst trac that
exceeds the peak rate.
Congure Interface rate policing
1 Create a QoS type empty class-map to match all the trac
OS10(config)# class-map cmap-all-traffic
2 Create a QoS type policy-map to dene 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
Congure ow rate policing
Quality of service
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