: Indicates a "Universal" image containing all features. Access to specific features (IP Base, IP Services) is determined by the applied license. The "k9" signifies support for strong payload cryptography. SPA : Denotes a digitally signed software package. 03.06.10.E : The IOS-XE release version (3.6.10E).
switch# show version | include System image file switch# show license status switch# show stack cat3k-caa-universalk9.spa.03.06.10.e.152-2.e10.bin
: Indicates the Catalyst 3000 series (specifically the 3650/3850 next-gen stackable switches). : Indicates a "Universal" image containing all features
This software train (3.6.xE) reached its end-of-sale milestone on May 1, 2017 . cat3k-caa-universalk9.spa.03.06.10.e.152-2.e10.bin
: Designed for the Catalyst 3850 and 3650 series, which are stackable access layer switches that converge wired and wireless networks. Converged Access (CA) : The "caa" in the filename refers to Converged Access