Control Plane Policing (CoPP)Control plane policing (CoPP) uses access control list (ACL) rules and quality of service (QoS) policies tocreate filters for a system’s control plane. The CoPP filters prevent traffic that is not identified as legitimatefrom reaching the control plane, and rate-limit traffic to an acceptable level.On the switch, the control plane has 21 queues (0 to 20) divided into groups of seven queues for the RouteProcessor, 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.Topics:• clear control-traffic protocol• clear control-traffic queue• control-plane-cpuqos• service-policy rate-limit-cpu-queues• service-policy rate-limit-protocols• show control-traffic protocol• show control-traffic queue• show cpu-queue rate• show ip protocol-queue-mapping• show ipv6 protocol-queue-mapping• show mac protocol-queue-mapping• show protocol-queue-mappingclear control-traffic protocolClear all per-protocol counters of rate-limited control-plane traffic.C9000 SeriesSyntax clear contol—traffic protocol [all | cp-switch | linecard slot-idportset port-pipe | pe {pe-id stack-unit unit number portset port-pipe ID} [counters]]10Control Plane Policing (CoPP) 661
