, is a Cisco IOS XE software image for Catalyst 4500E series switches. It represents a release within the 3.11.xE (Denali/Everest/Fuji) lineage, mapped to IOS version 15.2(7)E.
The 3.11.xE release branch introduced several enterprise-grade enhancements to improve routing and wireless integration: OSPF for Routed Access: cat4500e-universalk9.spa.03.11.00.e.152-7.e.bin
When moving to this version, follow a standard "Prepare, Verify, Execute" workflow: Flash Space : These binary files are large. Use the dir bootflash: dir slavebootflash: , is a Cisco IOS XE software image