<P> Cisco Systems' flagship Catalyst 5000 series switches are the industry's most powerful switching solutions in the wiring closet data center or backbone. <P> The series features a Gigabit Ethernet and ATM-ready platform offering users high-speed trunking technologies including Fast EtherChannel and OC-12 ATM. The Catalyst 5000 series also features a redundant architecture dynamic VLANs complete intranet services support and media-rate performance with a broad variety of interface modules. <P> Modules for the Catalyst 5000 Family models---the Catalyst 5500 5509 5505 5000 and 5002---are designed for complete interoperability and investment protection. New functionalities in the Catalyst 5000 Family support multiprotocol NetFlow Switching for scalable convergence of Layer 2 and Layer 3 switching adding the benefits of multiprotocol multilayer switching and other Cisco IOS network services.