Overview

This chapter captures and analyzes packets dropped by a router during forwarding. It helps network administrators understand blocked traffic, identify security threats, troubleshoot issues, and optimize performance by mirroring these packets to a specified destination.

Mirror forward-drop packets

This section explains the feature for mirroring packets dropped during the forwarding process to a configured destination for analysis. Use this functionality to identify potential security threats, troubleshoot network issues, and optimize overall performance.

Guidelines for mirroring forward-drop packets

This section provides the guidelines for configuring forward-drop packet mirroring on a router. It includes information on global session limits, traffic-class behavior, and handling in-band traffic destined for the management interface.

Restrictions for mirroring forward-drop packets

This section provides the limitations and restrictions that apply when mirroring forward-drop packets. Understanding these constraints, such as counter updates and packet mirroring limitations, ensures accurate network monitoring and troubleshooting.

Configure forward-drop packets

Learn how to configure a global session on the router to mirror forward-drop packets to a destination interface.