The NetFlow Feature Card II (NFFC II) is part of the CiscoAssure end-to-end quality-of-service (QoS) solution. Deployed in a wiring closet, the NFFC II can identify user applications and classify traffic with the appropriate priority level. It enables admission control in the closet to prevent unauthorized applications from being allowed on the network. With the NFFC II, a Catalyst 5000 Family switch is a QoS edge device that is application aware.Deployable in any Supervisor Engine III, the NFFC II extends the features and functionality of the award-winning Catalyst 5000 Family. The NFFC II enables multilayer switching, NetFlow accounting and data export, protocol filtering, Internet Group Management Protocol (IGMP) snooping, enhanced multicast packet replication, and QoS enhancements for CiscoAssure policy-based networking.