Here’s a clear, step-by-step guide for working with the IOS image file: cat4500e-universalk9.spa.03.11.00.e.152-7.e.bin
1. File Name Breakdown | Field | Meaning | |-------|---------| | cat4500e | Platform: Cisco Catalyst 4500-E Series | | universalk9 | Feature set: IP Base + Security (SSL, VPN, etc.) | | spa | SPA hardware platform | | 03.11.00.e | IOS version 3.11.0E (extended maintenance) | | 152-7.e.bin | Internal version: 15.2(7)E | | .bin | Bootable image file |
✅ Use only on Catalyst 4500-E (not original 4500, 4503, 4506, 4507R, 4510R without -E).
2. Prerequisites
TFTP/FTP/USB/SCP server reachable from the switch Console or SSH access to the switch Sufficient flash space – check with sh flash:
Image size ~300–400 MB Free space: dir flash: → compare with sh version (current image + free)
Minimum RAM/Flash per Cisco:
512 MB RAM (1 GB recommended) 1 GB flash
3. Preparation Backup current config & image copy running-config tftp: copy flash:current-image.bin tftp:
Verify hardware compatibility show version show inventory cat4500e-universalk9.spa.03.11.00.e.152-7.e.bin
If you see WS-C4503 (no -E), do not proceed – it will brick the switch.
4. Copy Image to Switch Option A – TFTP (easiest) copy tftp://<server-ip>/cat4500e-universalk9.spa.03.11.00.e.152-7.e.bin flash: