04-18-2013 10:04 AM - edited 03-07-2019 12:54 PM
We have a new stack of two Catalyst 3850-48T's running IOS XE 3.02.00 (we are upgrading to 3.02.01 this weekend.)
We noticed the CPU usage is around 30% even when there is almost no traffic going through the switch. We haven't seen any indication that it is causing a problem, but is this considered a normal baseline?
I attached my config (with passwords sanitized,) show ver, show controllers utilization, and show process cpu history.
I noticed this behavior is normal on 2900XL/3500XL switches, but I didn't find anything relating it to 3850 switches. Does the same thing apply to the 3850 switches?
Master3850#show processes cpu sorted Core 0: CPU utilization for five seconds: 29%; one minute: 29%; five minutes: 30% Core 1: CPU utilization for five seconds: 28%; one minute: 25%; five minutes: 26% Core 2: CPU utilization for five seconds: 25%; one minute: 23%; five minutes: 23% Core 3: CPU utilization for five seconds: 23%; one minute: 20%; five minutes: 21% PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 5497 271470 10207195 219 13.69 12.15 12.68 1088 fed 10566 1515219 59468016 349 10.94 10.13 10.49 34816 iosd 6008 4072745 25063720 50 0.76 0.74 0.71 0 pdsd 5499 2470332 18084094 37 0.47 0.43 0.40 0 stack-mgr 5498 1956222 58269883 107 0.28 0.34 0.33 0 platform_mgr 6034 3708140 3096518 1197 0.14 0.14 0.14 0 cpumemd 43 110950 3525177 31 0.05 0.05 0.04 0 sirq-net-rx/3 52 370 619117 0 0.05 0.03 0.04 0 events/1
Solved! Go to Solution.
04-24-2013 05:14 PM
Did you turn off all debugs
04-24-2013 05:14 PM
Did you turn off all debugs
05-08-2013 06:40 AM
After running undebug all (whoops!) and updating to 3.02.01, it went down to more like 15%.
Thanks!
04-24-2013 05:26 PM
Hi Wes,
I have seen many customer reporting this. So you can probably assume this to be normal.
Regards
Inayath
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