Administrator Guide
11
Control Plane Policing (CoPP)
Control plane policing (CoPP) is supported on the MXL switch.
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 trac not specically identied as legitimate from reaching the system control plane, rate-limits, trac to an acceptable
level.
CoPP increases security on the system by protecting the routing processor from unnecessary or DoS trac, giving priority to
important control plane and management trac. CoPP uses a dedicated control plane conguration 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 dierence between having CoPP implemented and not having CoPP implemented.
Figure 25. Control Plane Policing
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Control Plane Policing (CoPP)