The 15.3(3)JPO release for the 3700 series was designed to enhance stability and security, focusing on:
: Older IOS versions can be upgraded in a similar manner using the same archive download-sw command.
: The k9 designation signifies standard strong cryptographic capabilities. The w8 modifier dictates that this is a Lightweight/CAPWAP image. It is specifically built to communicate with a central Wireless LAN Controller (WLC), as opposed to autonomous k9w7 standalone software. Ap3g3-k9w8-tar.153-3.jpo.tar
For controller-based APs, this is the recommended method. It centralizes the process, reduces errors, and can be automated.
: The file format is a Compressed Archive (TAR), which contains the executable binary along with radio firmware and auxiliary files needed for the update. Core Functionality The 15
Providing these details will help me find the specific technical guides or documentation you need.
The file Ap3g3-k9w8-tar.153-3.jpo.tar is a .tar archive distributed by Cisco for use with their wireless access points (APs). The filename itself contains a wealth of information, broken down into four key parts: Platform, Feature Set, IOS Version, and File Format. Think of it as a hardware and software specification guide in a single name. It is specifically built to communicate with a
: This specific image family ( ap3g3 ) is designed for 802.11ac Wave 2 access points, including the Cisco Aironet 2800 Go to product viewer dialog for this item. , 3800 , and 4800 series.
), a stable release within the older AireOS supported releases.
In the WLC GUI, navigate to Commands > Download File . Download Type: Select Image (or AP Image).