Blinking LEDs on HP Procurve 3500

[Johan de Greef]

Hey Guys,

We recently installed an HP Procurve 3500 in a datacenter and we've only connected the uplink to the ISP (layer 2 connection). We suddenly received word that the switch was unreachable and that the LEDs of the interface were continuously blinking red and green. The switch was not reachable through console and had to be reset. The switch seems to be functioning again, but because of the reset the logging was lost.

Has anyone ever experienced these blinking LEDs and what can they mean?

Thanks in advance,

Kind regards,

Johan

[Richard Litchfield]

Try the command (from the console):

switch# sh logging
 -a                    Display all log events, including those from previous
                       boot cycles.
 -b                    Display log events as time since boot instead of
                       date/time format.
 -r                    Display log events in reverse order (most recent first).
 -s                    Display AMM and SMM log events.
 -t                    Display log events in granularity in 10 milli seconds.
 -m                    Major event class.
 -p                    Performance event class.
 -w                    Warning event class.
 -i                    Information event class.
 -d                    Debug event class.
 OPTION-STR            Filter events shown.
 <cr>

show logging -r

 You may also need the -a to show events from previous boot cycle.