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Catalyst 4510R Intermittently crashes

Hi Guys,

I've got a very odd issue that occurring every 4 weeks or so with our core switch.

What happens is that is becomes totally unusable, any device that is connected to the switch is unable to communicate, although layer 2 connectivity is present.

I am unable to use a console cable, nor am i able to SSH into the device, the only solution is to phsically power off the device.

The switch is currently running the firmware below:

System image file is "bootflash:cat4000-i9s-mz.122-25.EWA7.bin"

I can't see anything usefull in the logs.

Does anyone have any idean on how i even begin to track this issue down?

Any help would be greatfully received.

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