HI Collin,
You can use this by Configuring Control Plane Policing (CoPP).
CoPP uses a dedicated control plane configuration through the modular QoS CLI (MQC) to provide filtering and rate-limiting capabilities for the control plane packets.
CoPP is disabled by default.
CoPP is only supported on ingress (service-policy output CoPP cannot be applied to the control plane interface). Neither egress CoPP nor silent mode is supported.
Just follow the CoPP Configuration Guidelines and Restrictions .
CoPP uses MQC to define traffic classification criteria and to specify the configurable policy actions for the classified traffic. You must first identify the traffic to be classified by defining a class map. The class map defines packets for a particular traffic class. After you have classified the traffic, you can create policy maps to enforce policy actions for the identified traffic. The control-plane global configuration command allows the CoPP service policies to be directly attached to the control plane.
Use the below mentioned URL for Defining Traffic Classification
http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/copp.html#wp1141968
the commonly required traffic is identified with these ACLs:
•ACL 120-Critical traffic
•ACL 121-Important traffic
•ACL 122-Normal traffic
•ACL 123-Explicitly denies unwanted traffic
•ACL 124-All other traffic
http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/copp.html
Use the control plane commands as follows:
control-plane
To enter control-plane configuration mode, which allows users to associate or modify attributes or parameters (such as a service policy) that are associated with the control plane of the device, use the control-plane command in global configuration mode. To remove an existing control-plane configuration from the router, use the no form of this command.
Syntax for T Releases
control-plane [host | transit | cef-exception]
no control-plane [host | transit | cef-exception]
Syntax for 12.0S Releases
control-plane [slot slot-number] [host | transit | cef-exception]
no control-plane [slot slot-number] [host | transit | cef-exception]
Syntax for 12.2S Releases for Cisco 7600 Series Routers
control-plane
no control-plane
Syntax for ASR 1000 Series Routers
control-plane [host]
no control-plane [host]
The below link can be of huge information and config examples for control plane configuration:
http://www.cisco.com/en/US/docs/ios/qos/command/reference/qos_a1.html#wp1047593
Get back to me if you find this information relevant and useful to you.
Sachin garg
