The software version here is IOS XE 03.11.05 . This version is part of the 3rd generation of Cisco's IOS XE software for the 4500X series and indicates a mature and stable release.
write memory
This is a "Universal" image containing all features (Base, IP Base, Enterprise Services). The "k9" indicates it supports strong payload encryption (triple DES/AES). cat4500e-universalk9.spa.03.11.05.e.152-7.e5.bin
! ---------------------------------------------------------- ! FEATURE: SECURE_SSH_MANAGEMENT ! PLATFORM: Cat4500e-UNIVERSALK9 (IOS-XE 3.x) ! ---------------------------------------------------------- The software version here is IOS XE 03
When paired with redundant supervisor engines (e.g., Supervisor Engine 7-E or 8-E ), this software supports ISSU . This allows you to upgrade the switch software while the device continues to forward traffic, maintaining sub-second connectivity for critical applications. Supervisor Engine 7-E or 8-E )