Users Guide

Dell(conf-class-map-cpuqos)#match ip access-group bgp
Dell(conf-class-map-cpuqos)#exit
Dell(conf)#class-map match-any class_lacp cpu-qos
Dell(conf-class-map-cpuqos)#match mac access-group lacp
Dell(conf-class-map-cpuqos)#exit
Dell(conf)#class-map match-any class-ipv6-icmp cpu-qos
Dell(conf-class-map-cpuqos)#match ipv6 access-group ipv6-icmp
Dell(conf-class-map-cpuqos)#exit
The following example shows matching the QoS class map to the QoS policy.
Dell(conf)#policy-map-input egressFP_rate_policy cpu-qos
Dell(conf-policy-map-in-cpuqos)#class-map class_ospf qos-policy rate_limit_500k
Dell(conf-policy-map-in-cpuqos)#class-map class_bgp qos-policy rate_limit_400k
Dell(conf-policy-map-in-cpuqos)#class-map class_lacp qos-policy rate_limit_200k
Dell(conf-policy-map-in-cpuqos)#class-map class-ipv6 qos-policy rate_limit_200k
Dell(conf-policy-map-in-cpuqos)#exit
The following example shows creating the control plane service policy.
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
Controlling traffic on the CPU queues does not require ACL rules, but does require QoS policies.
CoPP for CPU queues converts the input rate from kbps to pps, assuming 64 bytes is the average packet size, and applies that
rate to the corresponding queue. Consequently, 1 kbps is roughly equivalent to 2 pps.
The basics for creating a CoPP service policy is to create QoS policies for the desired CPU bound queue and associate it with a
particular rate-limit. The QoS policies are assigned to a control-plane service policy for each port-pipe.
1 Create a QoS input policy for the router and assign the policing.
CONFIGURATION mode
qos-policy-input name cpu-qos
2 Create an input policy-map to assign the QoS policy to the desired service queues.l.
CONFIGURATION mode
policy-map--input name
cpu-qos service-queue queue-number qos-policy name
3 Enter Control Plane mode.
CONFIGURATION mode
control-plane-cpuqos
4 Assign a CPU queue-based service policy on the control plane in cpu-qos mode. Enabling this command sets the queue
rates according to those configured.
CONTROL-PLANE mode
service-policy rate-limit-cpu-queues input-policy-map
Examples of Configuring CoPP for CPU Queues
The following example shows creating the QoS policy.
Dell#conf
Dell(conf)#qos-policy-input cpuq_1
Dell(conf-qos-policy-in)#rate-police 3000 40 peak 500 40
Dell(conf-qos-policy-in)#exit
Control Plane Policing (CoPP) 226