This specific file string translates to the following technical specifications: (Catalyst 4500E series switches) Feature Set universalk9
: Provides deep visibility into application performance and traffic patterns for capacity planning and security analytics.
The Catalyst 4500-E is a modular chassis (available in 3-slot, 6-slot, 7-slot, and 10-slot variants). However, the software image runs directly on the central processing unit housed within the Supervisor Engine. The cat4500e universal image is engineered to support specific generations of Cisco Catalyst 4500-E Supervisor Engines: Supported Supervisors 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
This version is often sought after as a "maintenance release," focusing on bug fixes and hardening rather than experimental features. This specific file string translates to the following
: If advanced routing protocols fail to load after the upgrade, check your feature license state using show license right-to-use . The universal image requires explicit activation of the IP Base or Enterprise Services license level.
For detailed bug fixes and compatibility, you can check the official Cisco Catalyst 4500E Release Notes . The cat4500e universal image is engineered to support
Disclaimer: This article is for informational purposes only. Always refer to the latest official Cisco documentation and release notes for the most accurate and up-to-date information regarding software features, compatibility, and known issues.
While this image remains vital for many networks, Cisco has announced dates for the Catalyst 4500 series, with the final milestone typically falling around October 2025 . Users should eventually plan a migration to newer hardware like the Cisco Catalyst 9400 Series .
This is a Cisco IOS software image for the Cisco 4500E series switches. Specifically, it's a Universal image, which means it supports both IP Base and IP Services feature sets.