About selecting inbound traffic using advanced classifier-based mirroring

In addition to the traffic selection options, traffic mirroring supports the use of advanced classifier-based functions that provide:

• A finer granularity for selecting the inbound IP traffic that you want to mirror on an individual port or VLAN interface (instead of mirroring all inbound traffic on the interface)

• Support for mirroring both IPv4 and IPv6 traffic

• The ability to re-use the same traffic classes in different software-feature configurations; for example, you can apply both a QoS rate-limiting and mirroring policy on the same class of traffic.

Classifier-based mirroring policies provide greater precision when analyzing and debugging a network traffic problem. Using multiple match criteria, you can finely select and define the classes of traffic that you want to mirror on a traffic analyzer or IDS device.