06-27-2013 01:25 AM - edited 03-07-2019 02:06 PM
HI,
I have VSS running on 2 cisco WS-C4506-E.
My process cpu goes high and when i check IOSD prcoess taking majority of CPU
egtc-dsw-c4k# show processes cpu sorted
Core 0: CPU utilization for five seconds: 12%; one minute: 13%; five minutes: 17%
Core 1: CPU utilization for five seconds: 44%; one minute: 49%; five minutes: 54%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
8539 4036624 63457075 466 28.18 30.90 35.78 0 iosd
11758 1594385 12585851 126 0.32 0.26 0.24 0 ffm
What is this IOSD process do
Thanks
06-27-2013 02:37 AM
ASim,
Is there any chance for you to log a CIsco TAC case so that we login to your device and check what causing the CPU to go high?
Else here is TS method :
====================
1- Check the CPU utilization (Show proc cpu sorted | ex 0.00) >>Check which process is utilizing more CPU usage.
2- Check STP to see if there are any loops (show spann det | in ieee|from|occur|is exec) >> Check for any STP changes for VLAN , If yes then track that vlan and see which inteface is sending and recieving high packets or any drops on that particular interface.
3-Check the CPU packets Stats,
4-Use the following inbuilt non impacting debug to find out the packets going to the CPU(menioned in the same high CPU troubleshooting document)
Switch#debug platform packet all receive buffer
platform packet debugging is on
Switch#show platform cpu packet buffered
Focus on finding any common traits in the packets like srcmac etc.Once we know the bulk of the traffic goingto the CPU the source can be shut off
to bring the CPU down.
Hope that helps,
REgards
Inayath
08-21-2014 03:00 PM
Hi Asim:
Have you found out how to resolve the issue? I'm having the same behavior, but I do not have VSS enable.
Rgds,
03-20-2015 10:38 AM
I'm having the same problems on Secondary distribution switch, 1 SUP card, no VSS enable.
Both switch PAGP etherchannel connected .
On the Primary distribution no any problems, cpu usage lower then secondary switch.
cpu usage on both switch 6% : 16%
03-24-2015 04:09 PM
In our case, we solved the issue upgrading the IOS. TAC found a bug related with this behavior.
Let me know if you need more details.
10-08-2015 02:35 AM
Hi Obrenes,
Could you please share the BUG ID ?
Many thanks,
10-11-2015 04:23 AM
Hi,
Cloud you please share with us the old IOS ver and the upgraded ver.
Thank you :)
11-17-2017 06:20 AM - edited 11-17-2017 06:20 AM
12-26-2017 08:24 AM
Hi,
Can you please share the bug ID and IOS version you updated to/from please?
Thanks
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