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3750-24T-L randomly reboots without a cause

Unanswered Question
Sep 3rd, 2014
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We have a WS-C3750X-24T-L switch that has 2 300W power supplies installed that is randomly rebooting its self about once a week. It is connected to a UPS, we have confirmed that the UPS and line power have not been interrupted at any time when the switch restarts. The logs show the switch was: Last reset from power-on. We have flipped the supplies positions in the switch and it still reboots. I have attached the output from running show tech.

Any ideas what may be going on?

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educruz Wed, 09/03/2014 - 09:10
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  • Cisco Employee,

Hi,

 

First off, I am trying to discard bug CSCtw50892, in which the switch shows "power-on" no matter what the actual cause is.

If there is a crash or anything, this bug does not allow us see the actual last reset reason.

 

Could you reload the switch via console out of business hours?

Switch#reload

Proceed with reload? [confirm]  <<< (press enter)

 

Thereafter, you should see the following when typing "show ver"

Router uptime is 3 days, 18 hours, 39 minutes 
System restarted by [reload cause] 

System restarted by reload or system returned to ROM by reload

 

 

 

 

 

Let me go through the show tech and get back to you.

 

Kind regards,

- Ed

rdunton Wed, 09/03/2014 - 09:11
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Ed,

Thanks for the tip we can do that. I will let you know what the results are.

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