White Paper Abstract:
This document explains that the Cisco IOS Control Plane Protection features allow you to filter and rate-limit the packets that are going to the router's control plane, and discard malicious and or error packets. The addition of the Control Plane Logging feature enables logging of the packets that are dropped or permitted by these features. You can turn on logging for all or some packets that are processed by the control plane, without feature or class restrictions, or you can enable logging for specific Control Plane Protection features such as control plane policing, port-filtering, and queue-thresholding. The Control Plane Logging feature provides the logging mechanism that is needed to efficiently deploy, monitor, and troubleshoot Control Plane Protection features.