Switch(config)# boot system flash bootflash:cat4500es8-universalk9.spa.03.11.05.e.152-7.e5.bin
: Represents the Cisco IOS XE release version . In this case, it corresponds to Release 3.11.5E.
: Full support for Cisco TrustSec, Security Group Tagging (SGT), and MACsec (802.1AE) hardware encryption across supported line cards.
Version is generally considered a "Star" or "Maintenance" release. In the Cisco lifecycle, these releases focus on: cat4500es8-universalk9.spa.03.11.05.e.152-7.e5.bin
The most critical piece here is — which is part of the IOS 15.2(7)E train, specifically release E5.
show license
The cat4500es8-universalk9.spa.03.11.05.e.152-7.e5.bin firmware is a robust, feature‑rich release for Cisco’s Catalyst 4500‑E series. However, it has known security issues that require attention. Always verify file integrity and update to the latest patched release if possible. For detailed feature tables and caveats, consult the . Version is generally considered a "Star" or "Maintenance"
# Copy image to flash (using TFTP as example) copy tftp://192.168.1.100/cat4500es8-universalk9.spa.03.11.05.e.152-7.e5.bin bootflash:
Ensures continuous packet forwarding and high availability by synchronizing state information between the active and standby supervisor engines.
IOS 15.2(7)E5 is a release for many Catalyst 4500-E deployments. However, as of 2024–2026, this version is likely in End of Vulnerability/Security Support or End of Maintenance status. Check Cisco’s official support matrix. However, it has known security issues that require attention
The file is a specific Cisco IOS XE enterprise system image binary file designed explicitly for Cisco Catalyst 4500E series modular enterprise switches equipped with the Supervisor Engine 8-E (Sup8-E) hardware.
Before copying the image file onto the switch flash memory, calculate its MD5 checksum on your local workstation and compare it to the official value listed on the Cisco Software Download portal. A mismatched hash indicates file corruption during the download process. Step 2: Transfer to the Switch