The Cisco Catalyst 4500 Series is a mid-range modular switch series that offers non-blocking layer 2 through layer 4 switching capabilities for enterprise, small and medium-sized business (SMB) and service provider customers.The Cisco Catalyst 4500 Series extends control to the network edge with intelligent network services including predictable performance, advanced security, comprehensive management, and integrated resiliency both in software and hardware.The Cisco Catalyst 4500 Series features a centralized modular architecture that provides operational simplicity, media flexibility, and expandability which extends deployment life while reducing the cost of ownership by minimizing recurring operational expenses and improving return on investment (ROI).