3850 stack high cpu usage

[networksam]

Dear All

I have a problem

my 3850 stack with 2 switch

when i show processes cpu history,and  show processes cpu sorted and show processes cpu platform sorted 5sec , I get this  i get this

now , my question is why when I show processes cpu history, it will show cpu up to 90%?

and why my the utilization caused by interrupts from the data plane is so high ?

I don't know it is normal or not, can anyone help me, thank you!

[marce1000]

 - FYI  : https://www.cisco.com/c/en/us/support/docs/switches/catalyst-3850-series-switches/117594-technote-hicpu3850-00.html

 M.

[Leo Laohoo]

Post the complete output to the following commands: 

1. sh version
2. sh switch details
3. sh platform software status con brief

[networksam]

Hi Leo

thank U, it's information about commands

I am looking forward to your reply

[Leo Laohoo]

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@networksam wrote:

CAT3K_CAA-UNIVERSALK9 BUNDLE 

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NOTE:  Stack in Bundle Mode.  Kindly refer to Cisco 3850:  IOS-XE/Firmware Upgrade (Install Mode).

The memory utilization for switch 2 is abnormally high (ideally <50%).  

Please provide the output to the command "sh processor memory platform sorted location switch 2 r0".

[networksam]

Hi Leo

thank U, it's information about commands

I study others question the answer by you.

my question maybe is a memory leak?

I can't change the stack mode now, because the 3850stack is the core switch & my company active all day.

but when I find the correct issue, I will try to tell my boss it have change stack mode to fix the problem.

when I show processes cpu platform sorted location switch 1 r0 

I find a high cpu process

Pid PPid 5Sec 1Min 5Min Status Size Name

18174 17892 0% 11% 2% S 240742400 smand

Can you tell me what is the process smand ?

I try to find what is the process smand on internet, but I can't find useful information

Thanks you a lot again

[Leo Laohoo · Accepted solution]

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@networksam wrote:

 20748     344     44800     132      6260     44800    346440         cli_agent  

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Raise a TAC Case.  I suspect this could be CSCvh51167.