Cat4500e-universalk9.spa.03.11.04.e.152-7.e4.bin

Support for Cisco TrustSec, IEEE 802.1AE (MACsec) encryption, and robust DHCP snooping/Dynamic ARP Inspection.

The file is a Cisco IOS XE software image designed for the Catalyst 4500-E and 4500-X series switches. File Name Breakdown cat4500e-universalk9.spa.03.11.04.e.152-7.e4.bin

"Universalk9" indicates it is a universal image containing all software features (like IP Base and Enterprise Services) that are activated via Cisco software licenses. Release Mapping: IOS XE Version: 03.11.04.E IOS Version: 15.2(7)E4 Support for Cisco TrustSec, IEEE 802

: Specifies the target hardware platform. This image is built exclusively for the Catalyst 4500E series chassis and its supported Supervisor Engines. Release Mapping: IOS XE Version: 03

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Support for Cisco TrustSec (SGT/SGACL) to enforce identity-based security policies. 3. Enterprise Services (Full Premium Tier)