What happens when you overheat a Cisco 2800

[jonlandis27]

Hello,

I'm having trouble finding this online. We have a Cisco 2811 with 2 failed fans, hanging on only by the third. We're ready to replace it, but it would be service affecting, and there's a different migration procedure that would minimize the impact. 

I just haven't been able to figure out, what would happen if that third fan fails. As in, how soon would it probably overheat, and when it does, what would happen? Would it just reboot, or power off completely, awaiting intervention? 

My bet would be to let it run until its death, so even if that fan fails, I'd let it run until it melts. That would probably buy us enough time to replace it reactively.  I just don't know if it would hang on that long. 

Thanks for the support!

[Philip D'Ath · Accepted solution]

There is no definite answer to your question.  A lot of the answer may dependent on the ambient temperature.  If the ambient temperature is low enough it may just continue working anyway.

More than likely you'll start get random failures, corruption, packet loss and crashes.

[paul driver]

Hello

It would have to be quite an high temperature to overheat , I have once was privy to a network comms room air con failure and the room temperature went through the roof, in fact the servers started to go down before the routers did and these had at the time 2800's

res
Paul