UNIVERSALK9 (Contains cryptographic features for secure connectivity).
If you manage a Cisco Catalyst 4500E series switch chassis, you have likely encountered the long, cryptic filename: cat4500e-universalk9.spa.03.11.00.e.152-7.e.bin . cat4500e-universalk9.spa.03.11.00.e.152-7.e.bin
Works across the Catalyst 4500-X and E-Series supervisor engines (like 7L-E, 7-E, 8-E). End of Life: you have likely encountered the long
If you are running any 3.9.x or 3.10.x image, this release is a mandatory security upgrade. cat4500e-universalk9.spa.03.11.00.e.152-7.e.bin