05-30-2012 05:42 AM - edited 03-04-2019 04:30 PM
Hi,
We have one Router Cisco 2801 at the customer site and facing issue of having very High CPU coming to 99%.
CPU utilization for five seconds: 99%/28%; one minute: 99%; five minutes: 98%
18 1432704 473001 3028 0.97% 0.91% 0.74% 0 ARP Input
95 32380564 2407649 13449 29.35% 47.13% 48.43% 0 IP Input
122 31504 9103 3460 38.58% 3.33% 1.81% 195 Virtual Exec
Also find below CPU process history,
999999999999999999999999999999999999999999999999999999999999
100 ############################################################
90 ############################################################
80 ############################################################
70 ############################################################
60 ############################################################
50 ############################################################
40 ############################################################
30 ############################################################
20 ############################################################
10 ############################################################
0....5....1....1....2....2....3....3....4....4....5....5....6
0 5 0 5 0 5 0 5 0 5 0
CPU% per minute (last 60 minutes)
* = maximum CPU% # = average CPU%
999999333323433934799899999985433334143233363335665322342323333333236
999999110391298940835799999918203528636689505061333174220080043128963
100 ####** * * ***#**
90 ####** * ****####*
80 #####* * *****####**
70 #####* * ****######*
60 #####* * ****######** * ** *
50 #####* * ****######** * * **** *
40 #####* **** *****#######** * * ** ***** ***** * * **
30 #####***************#########******* **********#*#*** ** ************
20 #####**************##########******************#*#*******************
10 ######************###########******************###******************#
0....5....1....1....2....2....3....3....4....4....5....5....6....6....7..
0 5 0 5 0 5 0 5 0 5 0 5 0
CPU% per hour (last 72 hours)
* = maximum CPU% # = average CPU%
Also attaching here show tech for this Router to check out brief this issue and suggest me further.
Regards,
Ashutosh
05-30-2012 05:53 AM
Hello Ashutosh,
if you like you can post the following command:
show proc cpu sorted 1min
it provides the processes that most use cpu first ( sorted)
we see that cpu usage by interrupts is far lower then total cpu usage
CPU utilization for five seconds: 99%/28%<<< interrupts ; one minute: 99%; five minutes: 98%
the process most using the cpu is likely IP input
95 32380564 2407649 13449 29.35% 47.13% 48.43% 0 IP Input
and the following process:
122 31504 9103 3460 38.58% 3.33% 1.81% 195 Virtual Exec
see the following document for high cpu caused by IP input
http://www.cisco.com/en/US/products/hw/routers/ps359/products_tech_note09186a00801c2af3.shtml
for virtual exec
http://www.cisco.com/en/US/products/hw/routers/ps359/products_tech_note09186a00801c2ae4.shtml
and more general document
http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a00800a70f2.shtml
Hope to help
Giuseppe
05-30-2012 03:51 PM
ip route 0.0.0.0 0.0.0.0 Serial0/1/1
Avoid assigning an interface. It's better if you assign an IP address. In your case, it should be "ip route 0.0.0.0 0.0.0.0 190.190.2.1".
Have you tried upgrading your IOS before?
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