Dell S3048-ON

Control Plane Policing (CoPP)
Control plane policing (CoPP) uses access control list (ACL) rules and quality of service (QoS) policies to create lters for a system’s
control plane. That lter prevents trac not specically identied as legitimate from reaching the system control plane, rate-limits, trac to
an acceptable level.
CoPP increases security on the system by protecting the routing processor from unnecessary or DoS trac, giving priority to important
control plane and management trac. CoPP uses a dedicated control plane conguration through the ACL and QoS command line
interfaces (CLIs) to provide ltering and rate-limiting capabilities for the control plane packets.
The following illustration shows an example of the dierence between having CoPP implemented and not having CoPP implemented.
Figure 25. Control Plane Policing
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Control Plane Policing (CoPP) 231