High CPU Utilization Router 2801

[Wellington L]

Hi,

I have problems with the Router 2801.

When i give the command show processes cpu, the command show me that the router is working in 98%.

I have vlans like voice vlan and others, I have one 20 Mb Wan Link and I redirect all traffic from my lan to this link and when i browse in internet or i do downloads the router goes to 98%, when i don't make it the router processes goes down.

I thought be problem with hardware, but i exchange to another router and the same problem happened.

Before this situation, I had one link with 12 Mb and nothing happened, when i exchange this to the 20 mb link the problems starting.

[mvsheik123]

Hi,

Issue the command 'show proc cpu sorted' when you see high utilization. Capture the output. It should give you the information on what process taking up more CPU cycles. I guess 'Show proc cpu sorted' also gives option for 1min/5min utilization. Check it out.

hth

MS

[Wellington L]

When i give the command the command show me that the IP Input is consuming the router during the processes.

[mvsheik123 · Accepted solution]

IP Input process does not have any direct resolution. Check the interfaces that is getting more traffic and check for any switching associated for the interface. Refer to general doc:

http://www.cisco.com/en/US/products/hw/routers/ps359/products_tech_note09186a00801c2af3.shtml

hth

MS