ASR-9K CPU troubleshooting

Laurent Dumont admin at
Tue Apr 19 23:06:08 UTC 2016

It coincides with nothing else? More traffic? CPU increasing at regular 
intervals every day without any obvious reasons is probably something 
worth looking into!

On 4/18/2016 2:14 PM, Scott Weeks wrote:
> --- regezos at wrote:
> From: Rukka Pal <regezos at>
> How do you guys troubleshoot high CPU utilization on the ASR-9K platform?
> Detailed guides are available for IOS platforms, but I can't seem to find
> anything useful for the ASR.
> The average line-card (0/0/CPU0: A9K-24x10GE-TR) CPU utilization of my
> routers is about 10%, however recently I have noticed that 3-5 times a day
> it increases to 40% and stays there for about an hour (20% spp + 10% netio
> + the rest).
> I know this is well withing the acceptable range, but I am the kind of
> person who likes to understand every change in his network and during the
> investigation I had to realize that I simply don't have the tools to
> troubleshoot the ASR CPU.
> -----------------------------------
> On cisco: sho proc cpu
> scott

More information about the NANOG mailing list