Ap3g3-k9w8-tar.153-3.jpo.tar

This designates the specific Cisco IOS XE software version (likely

This firmware is designed for the Cisco Aironet 3800, 2800, and 1560 series of access points. It's designed to operate in , meaning the AP must join a Wireless LAN Controller (WLC) to function. This image can also be used when converting an AP to a Cisco Mobility Express controller, or for recovering an AP that has become stuck in the u-boot bootloader.

(Autonomous) image, though many newer Wave 2 APs (like those using ap3g3) are primarily managed through controllers or Cisco Mobility Express Ap3g3-k9w8-tar.153-3.jpo.tar

Indicates the file is a TAR archive, which contains the IOS image and necessary web management files.

: Denotes a Lightweight/CAPWAP image designed to register to and be managed by a Cisco Wireless LAN Controller (WLC). tar This designates the specific Cisco IOS XE software

: Ap3g3-k9w8-tar could be a specific model, product, or project identifier. The mix of letters and numbers is common in product naming conventions to create unique identifiers.

The WLC will download the file and push the upgrade to the connected 3700 APs. Connect via console cable (9600 baud). (Autonomous) image, though many newer Wave 2 APs

Rename the file to ap3g3-k9w8-tar.default if necessary to match the AP’s default recovery naming scheme.