Cisco Catalyst 4500ESeries modular switches enable a high performance, mobile, and secure user experience by optimizing application performance through deep visibility, unifying policy and enabling pervasive confidentiality, and driving network and service virtualization. The Catalyst 4500Elowers total cost of ownership through maximum resiliency, In Service Software Upgrades, automation, and unparalleled investment protection. This section will cover in depth look at the software and hardware architecture and the innovations like IOS XE, Wireshark, and Security via MACSec, deep application visibility via Flexible NetFlow, on the Catalyst 4500E platform that can be leveraged for deployment in campus access and aggregation.