show log -r
A: TFTP: ~2 minutes upload, 2-3 minutes flash write, reboot ~2 minutes. USB is similar. XMODEM: 20-40 minutes. aruba 2530 firmware upgrade
Sometimes a new firmware introduces a bug. If you need to roll back: show log -r A: TFTP: ~2 minutes upload,
Aruba does not support downgrading across major feature releases (e.g., YA.16.10 to YA.16.08) without a factory reset. You may lose configuration compatibility. Always test downgrade in a lab first. 2-3 minutes flash write