Cisco CCIE Security: CoPP Traffic Types

CoPP Traffic Types for Cisco CCIE Security Exam 400-251

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Question

Which three types of traffic are processed by CoPP configured on the device? (Choose three.)

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Explanations

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CoPP (Control Plane Policing) is a feature that is used to protect the control plane of a device from unnecessary or malicious traffic that could impact the device's operation. CoPP is a security feature that is widely used in modern networks to ensure that the control plane traffic is protected.

The control plane of a network device is responsible for the device's management, configuration, and control functions. Any traffic that is directed to the control plane, such as routing protocol traffic, management traffic, and other control plane traffic, is considered critical and should be protected.

CoPP is configured on a network device to control the traffic that is allowed to enter the control plane. CoPP is configured using an access control list (ACL) that identifies the types of traffic that should be allowed and the types of traffic that should be denied. CoPP classifies traffic based on the source and destination IP addresses, port numbers, and protocol type.

The three types of traffic that are typically processed by CoPP configured on a device are:

  1. Routing protocol traffic: CoPP is configured to protect the routing protocols that are used to exchange routing information between devices. Routing protocols such as OSPF, BGP, and EIGRP are examples of the types of traffic that are protected by CoPP.

  2. Traffic that is destined to the device interface: CoPP is also configured to protect traffic that is destined to the device's management interface. This includes traffic such as SSH, Telnet, and SNMP.

  3. IPsec traffic: CoPP is configured to protect the IPsec traffic that is used to secure communication between network devices. IPsec traffic is typically encrypted and decrypted by the device's CPU, and as such, it is critical to protect it from unnecessary or malicious traffic.

In summary, CoPP is a security feature that is used to protect the control plane of a network device. CoPP is configured using an access control list (ACL) that identifies the types of traffic that should be allowed and the types of traffic that should be denied. The three types of traffic that are typically processed by CoPP configured on a device are routing protocol traffic, traffic that is destined to the device interface, and IPsec traffic.