Router CPU Utilization up & down

[biplobkhan]

Hi

I have 3845 router where 200 branches are connect. Ho have database server where branch are synch interval period.

some of days observation cpu load average 70 % and sometimes it reaches 100 %.

yesterday when I give command clear arp then instant cpu load reduce and 20 %

yesterday cpu load 12-20 %. Today morning when I give command Cpu proc history

then I found cpu load 60 % and at night it was 3 times reaches 100 %.

so my question is after clear arp command at least 10 hours cpu utilization 20 % but after that it increase.

so for any LAN broadcast it happend ? how i understand cpu high for Broadcasting or anything else.

have any solution.

Regards

Biplob

[garapoglou]

Hi,

If you don't have information about the way applications used on branches work, you need to a packet analyzer utility. This would definitely help you out to determine the cause of this problem.

Best regards,
Giorgos

[biplobkhan]

Thanks.

But my question is why cpu utilization drop when i give command arp clear.

and again increase after intervel time ?