This paper will describe a new Cisco IOS Security Infrastructure feature: Control Plane Policing (CoPP), as well as deployment recommendations and guidelines. CoPP is used to increase security on Cisco routers by protecting the route processor from unnecessary and often malicious traffic. The vast majority of traffic generally travels through the router via the data plane; however, the Route Processor must handle certain packets, such as routing updates, keepalives, and network management. This is often referred to as control and management plane traffic.
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