Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 257
Configuring CoPP for CPU Queues
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Example of Applying a Protocol-Based Rate Limit to Control Plane Traffic Dell(conf)#control-plane-cpuqos Dell(conf-control-cpuqos)#service-policy rate-limit-protocols egressFP_rate_policy Dell(conf-control-cpuqos)#exit Configuring CoPP for CPU Queues This section describes how to create a queue-based CoPP service policy and apply it to control plane traffic. Controlling traffic on the CPU queues of the control plane does not require ACL rules; only QoS ratelimiting policies are used. To create a queue-based CoPP service policy, you must create a QoS input policy with rate-limiting, associate it with a control-plane queue in a QoS policy map, and apply the complete queue-based rate limiting configuration to control-plane traffic. 1. Create a QoS input policy and configure a rate limit. CONFIGURATION mode qos-policy-input name cpu-qos rate-police [rate-kbps] [burst-kbytes] peak [rate-kbps] [burst-kbytes] 2. Create an input policy-map to assign the QoS rate-limit policy to a control-plane queue. CONFIGURATION mode policy-map-input name cpu-qos service-queue queue-number qos-policy name On the switch, the range of queue-number values is from 0 to 20. The twenty-four control-plane queues are divided into groups of seven queues for the Route Processor, Control Processor, and line-card CPUs as follows: • Queues 0 to 6 process packets destined to the Control Processor CPU. • Queues 7 to 13 process packets destined to the Route Processor CPU. • Queues 14 to 20 process packets destined to the line-card CPU. For information about the default rate limits applied to the seven CPU queues for the Route Processor, Control Processor, and line cards, refer to CoPP Implementation. 3. Enter Control Plane configuration mode. CONFIGURATION mode control-plane-cpuqos 4. Apply the QoS input policy-map with queue-based rate limiting on control plane traffic. CONTROL-PLANE mode service-policy rate-limit-cpu-queues input-policy-map Examples of Configuring CoPP for CPU Queues Example of Creating a QoS Policy to Configure the Rate Limit Dell#conf Dell(conf)#qos-policy-input cpuq_1 cpu-qos Control Plane Policing (CoPP) 257
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