Dell MX9116n EMC SmartFabric OS10 User Guide Release 10.5.0 - Page 1157
Policing traffic
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Queue Traffic-Class 3 0-3 4. Apply the map on a specific interface or on a 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 traffic classified for a queue 1. Create a queuing type class-map 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 defined using a QoS class-map. In addition, 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 drops 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. Interface rate policing limits the rate of traffic that is received on an interface. Configure Interface rate policing 1. Create a QoS type empty class-map to match all the traffic. OS10(config)# class-map example-cmap-all-traffic 2. Create a QoS type policy-map to define a policer. OS10(config)# policy-map example-interface-policer OS10(config-pmap-qos)# class example-cmap-all-traffic OS10(config-pmap-c-qos)#police cir 4000 pir 6000 3. Apply the QoS type policy-map to an interface. OS10(config)# interface ethernet 1/1/14 OS10(conf-if-eth1/1/14)# service-policy input type qos example-interface-policer Flow rate policing controls the rate of flow of traffic. Configure flow rate policing 1. Create a QoS type class-map to match the traffic flow. OS10(config)# class-map example-cmap-cos3 OS10(config-cmap-qos)# match cos 3 Quality of service 1157
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