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High CPU Utilization

vijaymahanth
Level 1
Level 1

Hi,

 

I am seeing 98% CPU in my core router after 50 % of link usage. Can anyone please help.

 

File attached for reference.

 

 

1 Accepted Solution

Accepted Solutions

Leo Laohoo
Hall of Fame
Hall of Fame
Router is running a "T" train. That's not a good choice, either. Get ready to upgrade to a more stable "M" train.

View solution in original post

5 Replies 5

Joseph W. Doherty
Hall of Fame
Hall of Fame
It appears IP input it what's using most of your CPU. This is generally abnormal. I.e. you need to figure out what's causing the IP input process to be so highly used. (Do you have debugging enabled?)

show processes cpu history
sh processes cpu | exclude 0.00%__0.00%__0.00%
show tech-support
show processes cpu


debug ip packet detail
undebug all

show interfaces switching
show ip interface


show ip route summary
show ip traffic

show process | i CPU|Exec

GigabitEthernet0/1 TATA Internet 150Mbps link
Throttle count 2
Drops RP 291 SP 0
SPD Flushes Fast 401 SSE 0
SPD Aggress Fast 0
SPD Priority Inputs 10992 Drops 0

Protocol Path Pkts In Chars In Pkts Out Chars Out
Other Process 2316 549963 6407 384420
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
IP Process 5756994 470137460 7786931 705477746
Cache misses 0
Fast 209152013 1933786072 147649800 924391621
Auton/SSE 0 0 0 0
ARP Process 5 300 7 420
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
CDP Process 0 0 1068 403695
Cache misses 0
Fast 0 0 0 0
cache misses are high

Leo Laohoo
Hall of Fame
Hall of Fame
Router is running a "T" train. That's not a good choice, either. Get ready to upgrade to a more stable "M" train.

Hi,
Thanks for the reply, can you give me more details or share some links to this. Thanks in advance.