The versatile Cisco Catalyst 6500-E Series Chassis is ideal for addressing high-performance, high- port-density Fast Ethernet, Gigabit Ethernet, and 10 and 40 Gigabit Ethernet applications in all parts of the network. This series is ideally suited for enterprise core and aggregation environments. The Cisco Catalyst 6500-E Series chassis offers industry-leading 10/100/1000 Gigabit Ethernet, 10 Gigabit Ethernet and 40 Gigabit Ethernet port densities while providing high levels of network resilience.