Configure Copp For Cpu Queues - Dell Force10 Z9000 Configuration Manual

Match QoS Class Map to QoS Policy
FTOS(conf)#policy-map-input egressFP_rate_policy cpu-qos
FTOS(conf-policy-map-in-cpuqos)#class-map class_ospf qos-policy rate_limit_500k
FTOS(conf-policy-map-in-cpuqos)#class-map class_bgp qos-policy rate_limit_400k
FTOS(conf-policy-map-in-cpuqos)#class-map class_lacp qos-policy rate_limit_200k
FTOS(conf-policy-map-in-cpuqos)#class-map class-ipv6 qos-policy rate_limit_200k
FTOS(conf-policy-map-in-cpuqos)#exit
Create Control Plane Service Policy
FTOS(conf)#control-plane-cpuqos
FTOS(conf-control-cpuqos)#service-policy rate-limit-protocols egressFP_rate_policy
FTOS(conf-control-cpuqos)#exit

Configure 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 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.
Step Task
1 Create a QoS input policy for the
router and assign the policing.
2 Create an input policy-map to assign
the QoS policy to the desired service
queues.l.
3 Enter Control Plane mode.
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.
Command Syntax
qos-policy-input name cpu-qos
policy-map--input name cpu-qos
service-queue 0 qos-policy name
control-plane-cpuqos
service-policy
rate-limit-cpu-queues name
Command Mode
CONFIGURATION
CONFIGURATION
CONFIGURATION
CONTROL-PLANE
Control Plane Policing (CoPP) | 283