Cat4500e-universalk9.spa.03.11.00.e.152-7.e.bin May 2026

This version focuses on enhancing the density and reliability of the 4500E platform, specifically for Supervisor Engines like the 7-E, 7L-E, and 8-E.

MD5 Verification: Always run the verify /md5 command on the file before rebooting to prevent corruption-related boot loops. Why Use This Version? cat4500e-universalk9.spa.03.11.00.e.152-7.e.bin

Redundancy Check: If using dual supervisors, copy the image to both bootflash: and slavebootflash: . This version focuses on enhancing the density and

universalk9: Includes the full suite of features, including strong payload encryption (triple DES/AES). cat4500e-universalk9.spa.03.11.00.e.152-7.e.bin

Check Boot Variables: Update the boot system flash: command to point to the new image.

💡 If you'd like, I can help you with: The exact CLI commands for the upgrade