The Cisco Catalyst 4506-E Switch Chassis with CenterFlex technology provides scalable, nonblocking Layer 2-4 switching with secure, flexible, nonstop communications, enabling business resilience for enterprises, small and medium-sized businesses (SMBs), and Metro Ethernet customers deploying business-critical applications. CenterFlex technology is enabled by the centralized application-specific integrated circuits (ASICs) in the Cisco Metro Supervisor Engine 6-E, which deliver the high-speed centralized performance and configuration flexibility in the industry.