[c-nsp] High CPU Temperature on c7201

[Steve McCrory]

Hi Guys

 

We are having problems with one of our LNS devices dropping packets,
albeit in small numbers, due to ignored errors. These are the diags we
have captured:

 

router#sh int g0/1 | i error

     337 input errors, 0 CRC, 0 frame, 0 overrun, 337 ignored

     2 output errors, 0 collisions, 1 interface resets

 

router#sh controllers g0/1 | i resource

  rx_crc_error = 0, rx_too_big = 0, rx_resource_error = 337

 

router#show environment all

 

Temperature readings:

        NPE Inlet        measured at 27C/80F

        NPE Outlet       measured at 33C/91F

        CPU Die          measured at 89C/186F

 

As you can see the CPU temperature is very high even though the inlet
and outlet temperatures are normal. It has generated alerts when it has
reached 90C and above but seems to have settled in the high 80s for now.

 

My questions - Could the high CPU Die temperature be attributed to the
ignored errors we are seeing? What would normally cause high CPU
temperature when the ambient temperature recored by the inlet and outlet
appears normal?

 

For the record, we have other devices of the same model (c7201)
performing the same duty with the same IOS and handling a much larger
load,

 

Thanks

 

Steven

 

Steven McCrory

Network Specialist

 

GCI Com

Unit 2

Modwen Road

Salford

M5 3EZ

 

Office:  0844 443 3537

Fax:      0844 443 3540

www.gcicom.net
<https://mail.ipi-group.co.uk/exchweb/bin/redir.asp?URL=http://www.gcico
m.net/> 

 

 

 

 



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