Configuring flow mirroring
Flow mirroring copies packets matching a class to a destination for packet analyzing and monitoring. It is implemented through QoS policies.
To configure flow mirroring, perform the following tasks:
Define traffic classes and configure match criteria to classify packets to be mirrored. Flow mirroring allows you to flexibly classify packets to be analyzed by defining match criteria.
Configure traffic behaviors to mirror the matching packets to the specified destination.
You can configure an action to mirror the matching packets to one of the following destinations:
Interface—The matching packets are copied to an interface and then forwarded to a data monitoring device for analysis.
CPU—The matching packets are copied to the CPU of an IRF member device. The CPU analyzes the packets or delivers them to upper layers.
For more information about QoS policies, traffic classes, and traffic behaviors, see ACL and QoS Configuration Guide.