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8. Plug the switch’s power adapter cable back in. This
completes the Firmware Upgrade Recovery
operation, and your switch is ready for use.
1. Unplug the switch’s power adapter cable.
2. Slide the
Firmware Upgrade Recovery Switch
(see
p. 8) to the Recover position.
Firmware Upgrade Recovery
There are basically two conditions that call for
firmware upgrade recovery:
• When you begin a firmware upgrade, but decide
not to proceed with it.
• When the Mainboard firmware upgrade fails.
Note: If one of the cascaded switches fails to
upgrade successfully, unplug it from the installation
and perform the recovery and upgrade operation
independently. After it has been successfully
upgraded, plug it back into the installation.
To perform a firmware upgrade recovery, do the
following:
3. Use the Firmware Upgrade Cable (provided with
this unit), to connect to a serial port on your
computer with the Firmware Upgrade Port of the
switch.
4. Plug the switch’s power adapter cable back in.
5. Follow the upgrade procedures that begin with the
Starting the Upgrade
section (p. 39).
6. After the upgrade completes successfully, unplug
the switch’s power adapter cable, once again.
7. Slide the
Firmware Upgrade Recovery Switch
back
to the Normal position.
44
Firmware Upgrade Utility