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The file ap3g2-k9w7-tar.153-3.jbb1.tar is a firmware image package for specific Cisco Aironet series access points. It is a tar (Tape Archive) bundle containing the lightweight access point (LAP) or autonomous access point software image. The filename indicates it is intended for the AP3G2 platform family, running IOS version 15.3(3)JBB1.
md5sum ap3g2-k9w7-tar.153-3.jbb1.tar # Expected (example): a1b2c3d4e5f678901234567890abcdef Actual checksums are provided on Cisco’s download page for the file. Ap3g2-k9w7-tar.153-3.jbb1.tar
| Mode | Description | | :--- | :--- | | | Default mode. AP joins a Cisco Wireless LAN Controller (WLC) running compatible code (e.g., AireOS 7.6.x, 8.0.x, 8.1.x). | | Autonomous mode | Possible if the .tar contains a recovery image allowing conversion. Typically used for standalone operation without a WLC. | | Recovery via tftp | The .tar file is uploaded to the AP’s flash via tftp from ROMMON or from within IOS using archive download-sw . | The file ap3g2-k9w7-tar
After downloading the file from Cisco, verify its MD5/SHA checksum (example only): md5sum ap3g2-k9w7-tar
