Recover The Switch Software - Cisco Catalyst Express 500-24LC User Manual

Chapter 5 Troubleshooting

Recover the Switch Software

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Prerequisites
• You must have physical access to the switch.
Make sure that at least one switch port is enabled and is not connected to a
•
device.
You might need to recover the switch software if the image is corrupted during an
upgrade, if you installed the wrong image on the switch, or if you deleted the
image. In all of these cases, the switch does not pass the power-on self-test
(POST), and there is no connectivity. A symptom of corrupted software is when
the switch continuously tries to restart.
To display the Software Recovery window
Power off and then power on the switch by disconnecting and then
1.
reconnecting the AC power cord to the connector on the switch rear panel.
The System LED blinks green.
2. Immediately press the Setup button until all the system LEDs (System, Alert,
Setup, and PoE) are solid amber.
3. Stop pressing the Setup button.
The switch begins the power-on self-test (POST), a series of automatic tests
that confirm proper operation. POST lasts approximately 1 minute. The
System and Setup LEDs blink green during this process.
When POST completes, the System LED turns solid amber, and the Setup
LED blinks green. The LED of an available port blinks green; all other port
LEDs remain off (dark).
Note If the Setup LED is amber, it means that there is no available switch
port to which to connect your management station. Disconnect one of
the switch ports, and then press the Setup button again until the Setup
LED and the port LED blink green.
(Figure 5-4):
User Guide for the Catalyst Express 500 Switches

Recover the Switch Software

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