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HP ProCurve 10 Installation Manual: Diagnosing With The Leds

Switches and hubs.
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Troubleshooting

Diagnosing with the LEDs

Diagnosing with the LEDs
The following table shows LED patterns on the hubs that indicate problem
conditions.
Diagnostic Tips:
Tip
Problem
The hub is not
plugged into an
active AC power
source, or the
hub's power
supply may have
failed.
3-4
LED patterns indicating problems
Power
Fault
(per port)
OFF
OFF
ON
OFF
OFF with a
network
cable
connected
ON
OFF
Slow Blink
ON
ON for a
Variable, all
prolonged
may be ON
period
ON
Off
Fast Blink
ON
OFF
The slow blink behavior is an on/off cycle once every 1.6 seconds
The fast blink behavior is an on/off cycle once every 0.8 seconds
1. Verify that the power cord is plugged into an active power source and to the hub. Make
sure these connections are snug.
2. Try power cycling the hub by unplugging and plugging the power cord back in.
3. If the Power LED is still not on, verify that the AC power source works by plugging
another device into the outlet. Or try plugging the hub into a different outlet or try a
different power cord.
If the power source and power cord are OK and this condition persists, the hub power
supply may have failed. Call your HP-authorized LAN dealer, or use the electronic support
services from HP to get assistance. See the Customer Support/Warranty card for more
information.
Link
Activity
OFF
ON
ON
continuously
Solution
Diagnostic
Tips
Collision
ON
continuously

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This manual also for:

Procurve 100

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