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Beginner

CPU Utilization - sho processes cpu sorted

Hi,

I suspect my router is having high cpu utilization as response to ssh and telnet is slow, also response to execute commands is slow.

I did a "show processes cpu sorted 5min"

Can anyone please explain the results of the "show processes cpu sorted 5min"

I have uploaded the results in the attachements.

kind regards

Dan

7 REPLIES 7
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Hall of Fame Community Legend

Kindly post the complete

Kindly post the complete output to the following commands: 

  1. sh version; and 
  2. sh proc cpu sort | ex 0.00
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Beginner

Hi Leo,

Hi Leo,

find attached sho ver and sho proc cpu sort output

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Hall of Fame Community Legend

Router is running a "T" train

Router is running a "T" train.  Can you try loading anything that is in the "M" train?

Highlighted
Beginner

Hi Leo, thanks for your

Hi Leo, thanks for your response.

i really don't understand what you mean by T train and M train.

can you tell me how to do that please.

Thanks

Daniel

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Hall of Fame Community Legend

15.6(2)T

15.6(2)T

Look at the IOS version.  Notice it ends with a "T"?  This is a "T" train.  

Try looking for an IOS that ends with "M" like 15.6(3)M3.

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Beginner

Hi Leo,

Hi Leo,

This are the two IOS stored in flash.

c2900-universalk9-mz.SPA.156-2.T.bin

c2900-universalk9-mz.SPA.152-3.T3.bin

I will download a "M" train as adviced and load it.

Highlighted
VIP Expert

Your stats show most of your

Your stats show most of your CPU is consumed by "interrupt", which assuming we're not looking at some bug, generally reflects the maximum forwarding capacity of the device has been hit.

What's your aggregate bandwidth consumption while your CPU is so loaded?

For a 2911, Cisco recommends it for up to 35 Mbps (duplex).

BTW, in later IOS versions, fragmentation appears to be processed in the "interrupt" path, but that will drive your CPU to hit max much sooner than it otherwise would.