: This is the version number ( Cisco IOS 15.3(3)JPN1 ), reflecting the specific maintenance release and bug fixes included in this build.
The filename indicates it is an autonomous (standalone) image, which allows the access point to function without a centralized Wireless LAN Controller (WLC). Understanding the Filename Components Ap3g2-k9w7-tar.153-3.jpn1.tar
, it would signify a "Lightweight" (CAPWAP) image meant for use with a Wireless LAN Controller. : This is the version number ( Cisco IOS 15
Do not attempt to load this file on older generation APs (like 1240, 1250) or newer 1700/2700/3700 series. It will brick the device. Ap3g2-k9w7-tar.153-3.jpn1.tar