The Cisco Catalyst 4507R-E Switch Chassis 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. Catalyst 4507R-E Switch Chassis has a centralized forwarding architecture that enables collaboration, virtualization and operational manageability through simplified operations. With forward and backward compatibility spanning multiple generations, the new Catalyst 4507R-E Switch Chassis provides exceptional investment protection and deployment flexibility to meet the evolving needs of organizations of all sizes. Catalyst 4507R-E Switch Chassis platform has 10G uplinks and PoEP support as standard enabling the customers to future proof their network.