Concept Guide

Table Of Contents
Control Plane Policing (CoPP)
Dell Networking OS supports control plane policing (CoPP).
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 26. Control Plane Policing
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Control Plane Policing (CoPP) 239