Product UPC: 746320348841 The Catalyst 6500 Supervisor Engine 2 provides all of the features of the Supervisor 1A Engine and, in addition it provides an interface to the Switch Fabric Module and added features including: Support for Cross-bar fabric-enabled cards that scale bandwidth to 256 GbpsSupport for Cisco Express Forwarding (CEF)-based architecture that enables distributed forwardingSupport for video streaming applications via multicast replication in hardwareEnhanced QoS features