Providing additional investment protection, a new distributed forwarding daughter card, for all new next generation interfaces, distributes system intelligence and delivers sustained system throughput of 400 Million packets per second (Mpps) for Internet Protocol version 4 (IPv4) and 200 Mpps for IPv6. The new intelligent system management feature, "Call Home" Event Notification, informs network personnel of system conditions via email and pager. The new capabilities and interfaces complement recent introductions of the Cisco Catalyst 6500 Series Supervisor Engine 720 with hardware-accelerated IPv4, IPv6, Quality of Service and network policy enforcement. Coupled with 10 GbE modules, intelligent security and content switching modules, customers can use their existing Cisco Catalyst 6500 investments to build the industry's only application-aware, high performance, 10 Gigabit and IPv6-ready-end to end networks, from the wiring closet to the network core to the data center.