Reference Guide

10
Control Plane Policing (CoPP)
Control plane policing (CoPP) uses access control list (ACL) rules and quality of service (QoS) policies to
create filters for a system’s control plane. The CoPP filters prevent traffic that is not identified as
legitimate from 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
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.
clear control-traffic protocol
Clear all per-protocol counters of rate-limited control-plane traffic.
C9000 Series
Syntax
clear contol—traffic protocol [all | cp-switch | linecard slot-
id portset port-pipe | pe {pe-id stack-unit unit number portset
port-pipe ID} [counters]]
Parameters
cp-switch Enter the keyword cp-switch to clear counters for rate-
limited traffic on the central switch (aggregated CoPP).
all Enter the keyword all to clear counters for all protocol
rate-limiting traffic information.
pe pe-id Enter the keyword pe and the port extender ID. The PE ID
range is from 0 to 255.
stack-unit unit
number
Enter the keyword stack-unit and the stack unit number.
The stack-unit range is from 0 to 7.
portset port-pipe
ID
Enter the keyword portset and the port-pipe ID. The port-
pipe ID value is 0.
Defaults Clear per-protocol rate-limiting counters for all control-plane and port-set (port-
pipe) traffic.
Command Modes EXEC Privilege
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Control Plane Policing (CoPP)