unicast packets. This CLI knob to turn off the catch-all route is of use in networks where the user does not want to generate DestinationUnreachable messages and have the CPU queue’s bandwidth available for higher priority control-plane traffic.Configuring CoPP for OSPFv3You can create an IPv6 ACL for control-plane traffic policing for OSPFv3, in addition to the CoPP support for VRRPv3, BGPv6, andICMPv6. You can use the ipv6 access-list name cpu-qos permit ospfv3 or the ipv6 access-list name cpu-qosospfv3 command to allow CoPP traffic for OSPFv3. The control plane management support for IPv6 ICMPv6 packets is enhanced toenable more number of CPU queues on port to be available and other COPP improvements have been implemented.To configure control-plane policing, perform the following:1 Create an IPv6 ACL for control-plane traffic policing for ospfv3.CONFIGURATION modeDell(conf)#ipv6 access-list ospfv3 cpu-qosDell(conf-ipv6-acl-cpuqos)#permit ospf2 Create a QoS input policy for the router and assign the policing.CONFIGURATION modeDell(conf)#qos-policy-input ospfv3_rate cpu-qosDell(conf-in-qos-policy-cpuqos)#rate-police 1500 16 peak 1500 163 Create a QoS class map to differentiate the control-plane traffic and assign to the ACL.CONFIGURATION modeDell(conf)#class-map match-any ospfv3 cpu-qosDell(conf-class-map-cpuqos)#match ipv6 access-group ospfv34 Create a QoS input policy map to match to the class-map and qos-policy for each desired protocol.CONFIGURATION modeDell(conf)#policy-map-input ospfv3_policy cpu-qosDell(conf-policy-map-in-cpuqos)#class-map ospfv3 qos-policy ospfv3_rate5 Enter Control Plane mode.CONFIGURATION modeDell(conf)#control-plane-cpuqos6 Assign the protocol based service policy on the control plane. Enabling this command on a port-pipe automatically enables the ACLand QoS rules created with the cpu-qos keyword.CONTROL-PLANE modeDell(conf-control-cpuqos)#service-policy rate-limit-protocols ospfv3_policyDisplaying CoPP ConfigurationThe CLI provides show commands to display the protocol traffic assigned to each control-plane queue and the current rate-limit applied toeach queue. Other show commands display statistical information for trouble shooting CoPP operation.To view the rates for each queue, use the show cpu-queue rate cp command.Control Plane Policing (CoPP) 249
